\setheader{{\it CHAPTER \thechapter}}{}{}{}{}{{\it CHAPTER \thechapter}}%
\setfooter{\thepage}{}{}{}{}{\thepage}
-The functions defined in wxWindows are described here.
+The functions and macros defined in wxWindows are described here.
+
+\section{Version macros}\label{versionfunctions}
+
+The following constants are defined in wxWindows:
+
+\begin{itemize}\itemsep=0pt
+\item {\tt wxMAJOR\_VERSION} is the major version of wxWindows
+\item {\tt wxMINOR\_VERSION} is the minor version of wxWindows
+\item {\tt wxRELASE\_NUMBER} is the release number
+\end{itemize}
+
+For example, the values or these constants for wxWindows 2.1.15 are 2, 1 and
+15.
+
+Additionally, {\tt wxVERSION\_STRING} is a user-readable string containing
+the full wxWindows version and {\tt wxVERSION\_NUMBER} is a combination of the
+three version numbers above: for 2.1.15, it is 2115 and it is 2200 for
+wxWindows 2.2.
+
+\wxheading{Include files}
+
+<wx/version.h> or <wx/defs.h>
+
+\membersection{wxCHECK\_VERSION}\label{wxcheckversion}
+
+\func{bool}{wxCHECK\_VERSION}{\param{}{major, minor, release}}
+
+This is a macro which evaluates to true if the current wxWindows version is at
+least major.minor.release.
+
+For example, to test if the program is compiled with wxWindows 2.2 or higher,
+the following can be done:
+
+\begin{verbatim}
+ wxString s;
+#if wxCHECK_VERSION(2, 2, 0)
+ if ( s.StartsWith("foo") )
+#else // replacement code for old version
+ if ( strncmp(s, "foo", 3) == 0 )
+#endif
+ {
+ ...
+ }
+\end{verbatim}
+
+\section{Thread functions}\label{threadfunctions}
+
+\wxheading{Include files}
+
+<wx/thread.h>
+
+\wxheading{See also}
+
+\helpref{wxThread}{wxthread}, \helpref{wxMutex}{wxmutex}, \helpref{Multithreading overview}{wxthreadoverview}
+
+\membersection{::wxMutexGuiEnter}\label{wxmutexguienter}
+
+\func{void}{wxMutexGuiEnter}{\void}
+
+This function must be called when any thread other than the main GUI thread
+wants to get access to the GUI library. This function will block the execution
+of the calling thread until the main thread (or any other thread holding the
+main GUI lock) leaves the GUI library and no other thread will enter the GUI
+library until the calling thread calls \helpref{::wxMutexGuiLeave()}{wxmutexguileave}.
+
+Typically, these functions are used like this:
+
+\begin{verbatim}
+void MyThread::Foo(void)
+{
+ // before doing any GUI calls we must ensure that this thread is the only
+ // one doing it!
+
+ wxMutexGuiEnter();
+
+ // Call GUI here:
+ my_window->DrawSomething();
+
+ wxMutexGuiLeave();
+}
+\end{verbatim}
+
+Note that under GTK, no creation of top-level windows is allowed in any
+thread but the main one.
+
+This function is only defined on platforms which support preemptive
+threads.
+
+\membersection{::wxMutexGuiLeave}\label{wxmutexguileave}
+
+\func{void}{wxMutexGuiLeave}{\void}
+
+See \helpref{::wxMutexGuiEnter()}{wxmutexguienter}.
+
+This function is only defined on platforms which support preemptive
+threads.
\section{File functions}\label{filefunctions}
\wxheading{See also}
-\helpref{wxPathList}{wxpathlist}
+\helpref{wxPathList}{wxpathlist}, \helpref{wxDir}{wxdir}, \helpref{wxFile}{wxfile}
\membersection{::wxDirExists}
\membersection{::wxDos2UnixFilename}
-\func{void}{Dos2UnixFilename}{\param{const wxString\& }{s}}
+\func{void}{wxDos2UnixFilename}{\param{wxChar *}{s}}
Converts a DOS to a Unix filename by replacing backslashes with forward
slashes.
\func{bool}{wxFileExists}{\param{const wxString\& }{filename}}
-Returns TRUE if the file exists.
+Returns TRUE if the file exists. It also returns TRUE if the file is
+a directory.
+
+\membersection{::wxFileModificationTime}\label{wxfilemodificationtime}
+
+\func{time\_t}{wxFileModificationTime}{\param{const wxString\& }{filename}}
+
+Returns time of last modification of given file.
\membersection{::wxFileNameFromPath}
See \helpref{wxFindFirstFile}{wxfindfirstfile} for an example.
-\membersection{::wxGetOSDirectory}\label{wxgetosdirectory}
+\membersection{::wxGetDiskSpace}\label{wxgetdiskspace}
-\func{wxString}{wxGetOSDirectory}{\void}
+\func{bool}{wxGetDiskSpace}{\param{const wxString\& }{path}, \param{wxLongLong }{*total = NULL}, \param{wxLongLong }{*free = NULL}}
-Returns the Windows directory under Windows; on other platforms returns the empty string.
+This function returns the total number of bytes and number of free bytes on
+the disk containing the directory {\it path} (it should exist). Both
+{\it total} and {\it free} parameters may be {\tt NULL} if the corresponding
+information is not needed.
-\membersection{::wxInitAllImageHandlers}\label{wxinitallimagehandlers}
+\wxheading{Returns}
-\func{void}{wxInitAllImageHandlers}{\void}
+{\tt TRUE} on success, {\tt FALSE} if an error occured (for example, the
+directory doesn't exist).
-Adds some common image format handlers, which, depending on wxWindows
-configuration, can be handlers for BMP (loading) (always installed), GIF
-(loading and saving), PCX (loading and saving), PNM (loading and saving as raw
-rgb), PNG (loading and saving), JPEG (loading and saving), file formats.
+\wxheading{Portability}
-See also: \helpref{wxImage}{wximage} \helpref{wxImageHandler}{wximagehandler}
+This function is implemented for Win16 (only for drives less than 2Gb), Win32,
+Mac OS and generic Unix provided the system has {\tt statfs()} function.
+
+This function first appeared in wxWindows 2.3.2.
+
+\membersection{::wxGetOSDirectory}\label{wxgetosdirectory}
+
+\func{wxString}{wxGetOSDirectory}{\void}
+
+Returns the Windows directory under Windows; on other platforms returns the empty string.
\membersection{::wxIsAbsolutePath}
\membersection{::wxCopyFile}
-\func{bool}{wxCopyFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}}
+\func{bool}{wxCopyFile}{\param{const wxString\& }{file1}, \param{const wxString\& }{file2}, \param{bool }{overwrite = TRUE}}
-Copies {\it file1} to {\it file2}, returning TRUE if successful.
+Copies {\it file1} to {\it file2}, returning TRUE if successful. If
+{\it overwrite} parameter is TRUE (default), the destination file is overwritten
+if it exists, but if {\it overwrite} is FALSE, the functions failes in this
+case.
\membersection{::wxGetCwd}\label{wxgetcwd}
\func{char*}{wxGetTempFileName}{\param{const wxString\& }{prefix}, \param{char* }{buf=NULL}}
+\func{bool}{wxGetTempFileName}{\param{const wxString\& }{prefix}, \param{wxString\& }{buf}}
+
Makes a temporary filename based on {\it prefix}, opens and closes the file,
and places the name in {\it buf}. If {\it buf} is NULL, new store
is allocated for the temporary filename using {\it new}.
\membersection{::wxSplitPath}\label{wxsplitfunction}
-\func{void}{wxSplitPath}{\param{const char *}{ fullname}, \param{const wxString *}{ path}, \param{const wxString *}{ name}, \param{const wxString *}{ ext}}
+\func{void}{wxSplitPath}{\param{const char *}{ fullname}, \param{wxString *}{ path}, \param{wxString *}{ name}, \param{wxString *}{ ext}}
This function splits a full file name into components: the path (including possible disk/drive
specification under Windows), the base name and the extension. Any of the output parameters
Windows, however it will not consider backslashes as path separators under Unix (where backslash
is a valid character in a filename).
-On entry, {\it fullname} should be non NULL (it may be empty though).
+On entry, {\it fullname} should be non-NULL (it may be empty though).
On return, {\it path} contains the file path (without the trailing separator), {\it name}
contains the file name and {\it ext} contains the file extension without leading dot. All
Returns the FQDN (fully qualified domain host name) or an empty string on
error.
-See also: \helpref{wxGetHostName}{wxgethostname}
+\wxheading{See also}
+
+\helpref{wxGetHostName}{wxgethostname}
\wxheading{Include files}
\membersection{::wxGetHostName}\label{wxgethostname}
\func{wxString}{wxGetHostName}{\void}
+
\func{bool}{wxGetHostName}{\param{char * }{buf}, \param{int }{sz}}
Copies the current host machine's name into the supplied buffer. Please note
empty string otherwise. The second (deprecated) function returns TRUE
if successful, FALSE otherwise.
-See also: \helpref{wxGetFullHostName}{wxgetfullhostname}
+\wxheading{See also}
+
+\helpref{wxGetFullHostName}{wxgetfullhostname}
\wxheading{Include files}
\membersection{::wxGetUserId}\label{wxgetuserid}
\func{wxString}{wxGetUserId}{\void}
+
\func{bool}{wxGetUserId}{\param{char * }{buf}, \param{int }{sz}}
This function returns the "user id" also known as "login name" under Unix i.e.
empty string otherwise. The second (deprecated) function returns TRUE
if successful, FALSE otherwise.
-See also: \helpref{wxGetUserName}{wxgetusername}
+\wxheading{See also}
+
+\helpref{wxGetUserName}{wxgetusername}
\wxheading{Include files}
\membersection{::wxGetUserName}\label{wxgetusername}
\func{wxString}{wxGetUserName}{\void}
+
\func{bool}{wxGetUserName}{\param{char * }{buf}, \param{int }{sz}}
This function returns the full user name (something like "Mr. John Smith").
empty string otherwise. The second (deprecated) function returns TRUE
if successful, FALSE otherwise.
-See also: \helpref{wxGetUserId}{wxgetuserid}
+\wxheading{See also}
+
+\helpref{wxGetUserId}{wxgetuserid}
\wxheading{Include files}
Makes a copy of the string {\it s} using the C++ new operator, so it can be
deleted with the {\it delete} operator.
+\membersection{::wxIsEmpty}\label{wxisempty}
+
+\func{bool}{wxIsEmpty}{\param{const char *}{ p}}
+
+Returns {\tt TRUE} if the pointer is either {\tt NULL} or points to an empty
+string, {\tt FALSE} otherwise.
+
+\membersection{::wxStricmp}\label{wxstricmp}
+
+\func{int}{wxStricmp}{\param{const char *}{p1}, \param{const char *}{p2}}
+
+Returns a negative value, 0, or positive value if {\it p1} is less than, equal
+to or greater than {\it p2}. The comparison is case-insensitive.
+
+This function complements the standard C function {\it strcmp()} which performs
+case-sensitive comparison.
+
\membersection{::wxStringMatch}
\func{bool}{wxStringMatch}{\param{const wxString\& }{s1}, \param{const wxString\& }{s2},\\
\param{bool}{ subString = TRUE}, \param{bool}{ exact = FALSE}}
-Returns TRUE if the substring {\it s1} is found within {\it s2},
-ignoring case if {\it exact} is FALSE. If {\it subString} is FALSE,
+Returns {\tt TRUE} if the substring {\it s1} is found within {\it s2},
+ignoring case if {\it exact} is FALSE. If {\it subString} is {\tt FALSE},
no substring matching is done.
+This function is obsolete, use \helpref{wxString::Find}{wxstringfind} instead.
+
\membersection{::wxStringEq}\label{wxstringeq}
\func{bool}{wxStringEq}{\param{const wxString\& }{s1}, \param{const wxString\& }{s2}}
#define wxStringEq(s1, s2) (s1 && s2 && (strcmp(s1, s2) == 0))
\end{verbatim}
-\membersection{::IsEmpty}\label{isempty}
+This function is obsolete, use \helpref{wxString}{wxstring} instead.
-\func{bool}{IsEmpty}{\param{const char *}{ p}}
+\membersection{::wxStrlen}\label{wxstrlen}
-Returns TRUE if the string is empty, FALSE otherwise. It is safe to pass NULL
-pointer to this function and it will return TRUE for it.
-
-\membersection{::Stricmp}\label{stricmp}
-
-\func{int}{Stricmp}{\param{const char *}{p1}, \param{const char *}{p2}}
-
-Returns a negative value, 0, or positive value if {\it p1} is less than, equal
-to or greater than {\it p2}. The comparison is case-insensitive.
-
-This function complements the standard C function {\it strcmp()} which performs
-case-sensitive comparison.
-
-\membersection{::Strlen}\label{strlen}
-
-\func{size\_t}{Strlen}{\param{const char *}{ p}}
+\func{size\_t}{wxStrlen}{\param{const char *}{ p}}
This is a safe version of standard function {\it strlen()}: it does exactly the
same thing (i.e. returns the length of the string) except that it returns 0 if
-{\it p} is the NULL pointer.
+{\it p} is the {\tt NULL} pointer.
\membersection{::wxGetTranslation}\label{wxgettranslation}
\func{const char *}{wxGetTranslation}{\param{const char * }{str}}
-This function returns the translation of string {\it str} in the current
+This function returns the translation of string {\it str} in the current
\helpref{locale}{wxlocale}. If the string is not found in any of the loaded
-message catalogs (see \helpref{i18n overview}{internationalization}), the
+message catalogs (see \helpref{internationalization overview}{internationalization}), the
original string is returned. In debug build, an error message is logged - this
should help to find the strings which were not yet translated. As this function
is used very often, an alternative syntax is provided: the \_() macro is
defined as wxGetTranslation().
+\membersection{::wxSnprintf}\label{wxsnprintf}
+
+\func{int}{wxSnprintf}{\param{wxChar *}{buf}, \param{size\_t }{len}, \param{const wxChar *}{format}, \param{}{...}}
+
+This function replaces the dangerous standard function {\tt sprintf()} and is
+like {\tt snprintf()} available on some platforms. The only difference with
+sprintf() is that an additional argument - buffer size - is taken and the
+buffer is never overflowed.
+
+Returns the number of characters copied to the buffer or -1 if there is not
+enough space.
+
+\wxheading{See also}
+
+\helpref{wxVsnprintf}{wxvsnprintf}, \helpref{wxString::Printf}{wxstringprintf}
+
+\membersection{::wxVsnprintf}\label{wxvsnprintf}
+
+\func{int}{wxVsnprintf}{\param{wxChar *}{buf}, \param{size\_t }{len}, \param{const wxChar *}{format}, \param{va\_list }{argptr}}
+
+The same as \helpref{wxSnprintf}{wxsnprintf} but takes a {\tt va\_list}
+argument instead of arbitrary number of parameters.
+
+\wxheading{See also}
+
+\helpref{wxSnprintf}{wxsnprintf}, \helpref{wxString::PrintfV}{wxstringprintfv}
+
\section{Dialog functions}\label{dialogfunctions}
Below are a number of convenience functions for getting input from the
\membersection{::wxCreateFileTipProvider}\label{wxcreatefiletipprovider}
-\func{wxTipProvider *}{wxCreateFileTipProvider}{
- \param{const wxString\& }{filename},
- \param{size\_t }{currentTip}}
+\func{wxTipProvider *}{wxCreateFileTipProvider}{\param{const wxString\& }{filename},
+ \param{size\_t }{currentTip}}
This function creates a \helpref{wxTipProvider}{wxtipprovider} which may be
used with \helpref{wxShowTip}{wxshowtip}.
\docparam{filename}{The name of the file containing the tips, one per line}
\docparam{currentTip}{The index of the first tip to show - normally this index
- is remembered between the 2 program runs.}
+is remembered between the 2 program runs.}
-\wxheading{See also:}
+\wxheading{See also}
\helpref{Tips overview}{tipsoverview}
\membersection{::wxFileSelector}\label{wxfileselector}
\func{wxString}{wxFileSelector}{\param{const wxString\& }{message}, \param{const wxString\& }{default\_path = ""},\\
- \param{const wxString\& }{default\_filename = ""}, \param{const wxString\& }{default\_extension = ""},\\
- \param{const wxString\& }{wildcard = ``*.*''}, \param{int }{flags = 0}, \param{wxWindow *}{parent = ""},\\
- \param{int}{ x = -1}, \param{int}{ y = -1}}
+ \param{const wxString\& }{default\_filename = ""}, \param{const wxString\& }{default\_extension = ""},\\
+ \param{const wxString\& }{wildcard = ``*.*''}, \param{int }{flags = 0}, \param{wxWindow *}{parent = ""},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1}}
Pops up a file selector box. In Windows, this is the common file selector
-dialog. In X, this is a file selector box with somewhat less functionality.
+dialog. In X, this is a file selector box with the same functionality.
The path and filename are distinct elements of a full file pathname.
If path is empty, the current directory will be used. If filename is empty,
no default filename will be supplied. The wildcard determines what files
are displayed in the file selector, and file extension supplies a type
extension for the required filename. Flags may be a combination of wxOPEN,
-wxSAVE, wxOVERWRITE\_PROMPT, wxHIDE\_READONLY, or 0.
+wxSAVE, wxOVERWRITE\_PROMPT, wxHIDE\_READONLY, wxFILE\_MUST\_EXIST, wxMULTIPLE or 0.
Both the Unix and Windows versions implement a wildcard filter. Typing a
filename containing wildcards (*, ?) in the filename text item, and
clicking on Ok, will result in only those files matching the pattern being
displayed.
-The wildcard may be a specification for multiple types of file
+The wildcard may be a specification for multiple types of file
with a description for each, such as:
\begin{verbatim}
<wx/filedlg.h>
+\membersection{::wxGetColourFromUser}\label{wxgetcolourfromuser}
+
+\func{wxColour}{wxGetColourFromUser}{\param{wxWindow *}{parent}, \param{const wxColour\& }{colInit}}
+
+Shows the colour selection dialog and returns the colour selected by user or
+invalid colour (use \helpref{wxColour::Ok}{wxcolourok} to test whether a colour
+is valid) if the dialog was cancelled.
+
+\wxheading{Parameters}
+
+\docparam{parent}{The parent window for the colour selection dialog}
+
+\docparam{colInit}{If given, this will be the colour initially selected in the dialog.}
+
+\wxheading{Include files}
+
+<wx/colordlg.h>
+
+\membersection{::wxGetMultipleChoices}\label{wxgetmultiplechoices}
+
+\func{size\_t}{wxGetMultipleChoices}{\\
+ \param{wxArrayInt\& }{selections},\\
+ \param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{const wxArrayString\& }{aChoices},\\
+ \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE},\\
+ \param{int }{width=150}, \param{int }{height=200}}
+
+\func{size\_t}{wxGetMultipleChoices}{\\
+ \param{wxArrayInt\& }{selections},\\
+ \param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{int}{ n}, \param{const wxString\& }{choices[]},\\
+ \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE},\\
+ \param{int }{width=150}, \param{int }{height=200}}
+
+Pops up a dialog box containing a message, OK/Cancel buttons and a
+multiple-selection listbox. The user may choose an arbitrary (including 0)
+number of items in the listbox whose indices will be returned in
+{\it selection} array. The initial contents of this array will be used to
+select the items when the dialog is shown.
+
+You may pass the list of strings to choose from either using {\it choices}
+which is an array of {\it n} strings for the listbox or by using a single
+{\it aChoices} parameter of type \helpref{wxArrayString}{wxarraystring}.
+
+If {\it centre} is TRUE, the message text (which may include new line
+characters) is centred; if FALSE, the message is left-justified.
+
+\wxheading{Include files}
+
+<wx/choicdlg.h>
+
+\perlnote{In wxPerl there is just an array reference in place of {\tt n}
+and {\tt choices}, and no {\tt selections} parameter; the function
+returns an array containing the user selections.}
+
\membersection{::wxGetNumberFromUser}\label{wxgetnumberfromuser}
\func{long}{wxGetNumberFromUser}{
- \param{const wxString\& }{message},
- \param{const wxString\& }{prompt},
- \param{const wxString\& }{caption},
- \param{long }{value},
- \param{long }{min = 0},
- \param{long }{max = 100},
- \param{wxWindow *}{parent = NULL},
- \param{const wxPoint\& }{pos = wxDefaultPosition}}
-
-Shows a dialog asking the user for numeric input. The dialogs title is set to
+ \param{const wxString\& }{message},
+ \param{const wxString\& }{prompt},
+ \param{const wxString\& }{caption},
+ \param{long }{value},
+ \param{long }{min = 0},
+ \param{long }{max = 100},
+ \param{wxWindow *}{parent = NULL},
+ \param{const wxPoint\& }{pos = wxDefaultPosition}}
+
+Shows a dialog asking the user for numeric input. The dialogs title is set to
{\it caption}, it contains a (possibly) multiline {\it message} above the
single line {\it prompt} and the zone for entering the number.
should be positive) and {\it value} is the initial value of it. If the user
enters an invalid value or cancels the dialog, the function will return -1.
-Dialog is centered on its {\it parent} unless an explicit position is given in
+Dialog is centered on its {\it parent} unless an explicit position is given in
{\it pos}.
\wxheading{Include files}
<wx/textdlg.h>
+\membersection{::wxGetPasswordFromUser}\label{wxgetpasswordfromuser}
+
+\func{wxString}{wxGetTextFromUser}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Input text"},\\
+ \param{const wxString\& }{default\_value = ``"}, \param{wxWindow *}{parent = NULL}}
+
+Similar to \helpref{wxGetTextFromUser}{wxgettextfromuser} but the text entered
+in the dialog is not shown on screen but replaced with stars. This is intended
+to be used for entering passwords as the function name implies.
+
+\wxheading{Include files}
+
+<wx/textdlg.h>
+
\membersection{::wxGetTextFromUser}\label{wxgettextfromuser}
\func{wxString}{wxGetTextFromUser}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Input text"},\\
- \param{const wxString\& }{default\_value = ``"}, \param{wxWindow *}{parent = NULL},\\
- \param{int}{ x = -1}, \param{int}{ y = -1}, \param{bool}{ centre = TRUE}}
+ \param{const wxString\& }{default\_value = ``"}, \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1}, \param{bool}{ centre = TRUE}}
-Pop up a dialog box with title set to {\it caption}, message {\it message}, and a
+Pop up a dialog box with title set to {\it caption}, {\it message}, and a
\rtfsp{\it default\_value}. The user may type in text and press OK to return this text,
or press Cancel to return the empty string.
\membersection{::wxGetMultipleChoice}\label{wxgetmultiplechoice}
\func{int}{wxGetMultipleChoice}{\param{const wxString\& }{message}, \param{const wxString\& }{caption}, \param{int}{ n}, \param{const wxString\& }{choices[]},\\
- \param{int }{nsel}, \param{int *}{selection},
- \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\
- \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
+ \param{int }{nsel}, \param{int *}{selection},
+ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
Pops up a dialog box containing a message, OK/Cancel buttons and a multiple-selection
listbox. The user may choose one or more item(s) and press OK or Cancel.
\membersection{::wxGetSingleChoice}\label{wxgetsinglechoice}
-\func{wxString}{wxGetSingleChoice}{\param{const wxString\& }{message}, \param{const wxString\& }{caption}, \param{int}{ n}, \param{const wxString\& }{choices[]},\\
- \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\
- \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
+\func{wxString}{wxGetSingleChoice}{\param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{const wxArrayString\& }{aChoices},\\
+ \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE},\\
+ \param{int }{width=150}, \param{int }{height=200}}
-Pops up a dialog box containing a message, OK/Cancel buttons and a single-selection
-listbox. The user may choose an item and press OK to return a string or
-Cancel to return the empty string.
+\func{wxString}{wxGetSingleChoice}{\param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{int}{ n}, \param{const wxString\& }{choices[]},\\
+ \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE},\\
+ \param{int }{width=150}, \param{int }{height=200}}
-{\it choices} is an array of {\it n} strings for the listbox.
+Pops up a dialog box containing a message, OK/Cancel buttons and a
+single-selection listbox. The user may choose an item and press OK to return a
+string or Cancel to return the empty string. Use
+\helpref{wxGetSingleChoiceIndex}{wxgetsinglechoiceindex} if empty string is a
+valid choice and if you want to be able to detect pressing Cancel reliably.
-If {\it centre} is TRUE, the message text (which may include new line characters)
-is centred; if FALSE, the message is left-justified.
+You may pass the list of strings to choose from either using {\it choices}
+which is an array of {\it n} strings for the listbox or by using a single
+{\it aChoices} parameter of type \helpref{wxArrayString}{wxarraystring}.
+
+If {\it centre} is TRUE, the message text (which may include new line
+characters) is centred; if FALSE, the message is left-justified.
\wxheading{Include files}
<wx/choicdlg.h>
+\perlnote{In wxPerl there is just an array reference in place of {\tt n}
+and {\tt choices}.}
+
\membersection{::wxGetSingleChoiceIndex}\label{wxgetsinglechoiceindex}
-\func{int}{wxGetSingleChoiceIndex}{\param{const wxString\& }{message}, \param{const wxString\& }{caption}, \param{int}{ n}, \param{const wxString\& }{choices[]},\\
- \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\
- \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
+\func{int}{wxGetSingleChoiceIndex}{\param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{const wxArrayString\& }{aChoices},\\
+ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
+
+\func{int}{wxGetSingleChoiceIndex}{\param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{int}{ n}, \param{const wxString\& }{choices[]},\\
+ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
-As {\bf wxGetSingleChoice} but returns the index representing the selected string.
-If the user pressed cancel, -1 is returned.
+As {\bf wxGetSingleChoice} but returns the index representing the selected
+string. If the user pressed cancel, -1 is returned.
\wxheading{Include files}
<wx/choicdlg.h>
+\perlnote{In wxPerl there is just an array reference in place of {\tt n}
+and {\tt choices}.}
+
\membersection{::wxGetSingleChoiceData}\label{wxgetsinglechoicedata}
-\func{wxString}{wxGetSingleChoiceData}{\param{const wxString\& }{message}, \param{const wxString\& }{caption}, \param{int}{ n}, \param{const wxString\& }{choices[]},\\
- \param{const wxString\& }{client\_data[]}, \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1},\\
- \param{int}{ y = -1}, \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
+\func{wxString}{wxGetSingleChoiceData}{\param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{const wxArrayString\& }{aChoices},\\
+ \param{const wxString\& }{client\_data[]},\\
+ \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
+
+\func{wxString}{wxGetSingleChoiceData}{\param{const wxString\& }{message},\\
+ \param{const wxString\& }{caption},\\
+ \param{int}{ n}, \param{const wxString\& }{choices[]},\\
+ \param{const wxString\& }{client\_data[]},\\
+ \param{wxWindow *}{parent = NULL},\\
+ \param{int}{ x = -1}, \param{int}{ y = -1},\\
+ \param{bool}{ centre = TRUE}, \param{int }{width=150}, \param{int }{height=200}}
As {\bf wxGetSingleChoice} but takes an array of client data pointers
-corresponding to the strings, and returns one of these pointers.
+corresponding to the strings, and returns one of these pointers or NULL if
+Cancel was pressed. The {\it client\_data} array must have the same number of
+elements as {\it choices} or {\it aChoices}!
\wxheading{Include files}
<wx/choicdlg.h>
+\perlnote{In wxPerl there is just an array reference in place of {\tt n}
+and {\tt choices}, and the client data array must have the
+same length as the choices array.}
+
\membersection{::wxMessageBox}\label{wxmessagebox}
\func{int}{wxMessageBox}{\param{const wxString\& }{message}, \param{const wxString\& }{caption = ``Message"}, \param{int}{ style = wxOK \pipe wxCENTRE},\\
- \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1}}
+ \param{wxWindow *}{parent = NULL}, \param{int}{ x = -1}, \param{int}{ y = -1}}
General purpose message dialog. {\it style} may be a bit list of the
following identifiers:
wxYES\_NO or wxOK.}
\twocolitem{wxOK}{Puts an Ok button on the message box. May be combined with wxCANCEL.}
\twocolitem{wxCENTRE}{Centres the text.}
-\twocolitem{wxICON\_EXCLAMATION}{Under Windows, displays an exclamation mark symbol.}
-\twocolitem{wxICON\_HAND}{Under Windows, displays a hand symbol.}
-\twocolitem{wxICON\_QUESTION}{Under Windows, displays a question mark symbol.}
-\twocolitem{wxICON\_INFORMATION}{Under Windows, displays an information symbol.}
+\twocolitem{wxICON\_EXCLAMATION}{Displays an exclamation mark symbol.}
+\twocolitem{wxICON\_HAND}{Displays an error symbol.}
+\twocolitem{wxICON\_ERROR}{Displays an error symbol - the same as wxICON\_HAND.}
+\twocolitem{wxICON\_QUESTION}{Displays a question mark symbol.}
+\twocolitem{wxICON\_INFORMATION}{Displays an information symbol.}
\end{twocollist}
The return value is one of: wxYES, wxNO, wxCANCEL, wxOK.
\membersection{::wxShowTip}\label{wxshowtip}
-\func{bool}{wxShowTip}{
- \param{wxWindow *}{parent},
- \param{wxTipProvider *}{tipProvider},
- \param{bool }{showAtStartup = TRUE}}
+\func{bool}{wxShowTip}{\param{wxWindow *}{parent},
+ \param{wxTipProvider *}{tipProvider},
+ \param{bool }{showAtStartup = TRUE}}
This function shows a "startup tip" to the user.
\docparam{parent}{The parent window for the modal dialog}
\docparam{tipProvider}{An object which is used to get the text of the tips.
- It may be created with
- \helpref{wxCreateFileTipProvider}{wxcreatefiletipprovider} function.}
+It may be created with the \helpref{wxCreateFileTipProvider}{wxcreatefiletipprovider} function.}
\docparam{showAtStartup}{Should be TRUE if startup tips are shown, FALSE
- otherwise. This is used as the initial value for "Show tips at startup"
- checkbox which is shown in the tips dialog.}
+otherwise. This is used as the initial value for "Show tips at startup"
+checkbox which is shown in the tips dialog.}
-\wxheading{See also:}
+\wxheading{See also}
\helpref{Tips overview}{tipsoverview}
<wx/gdicmn.h>
+\membersection{::wxClientDisplayRect}
+
+\func{void}{wxClientDisplayRect}{\param{int *}{x}, \param{int *}{y},
+\param{int *}{width}, \param{int *}{height}}
+
+\func{wxRect}{wxGetClientDisplayRect}{\void}
+
+Returns the dimensions of the work area on the display. On Windows
+this means the area not covered by the taskbar, etc. Other platforms
+are currently defaulting to the whole display until a way is found to
+provide this info for all window managers, etc.
+
\membersection{::wxColourDisplay}
\func{bool}{wxColourDisplay}{\void}
Returns the depth of the display (a value of 1 denotes a monochrome display).
+\membersection{::wxDisplaySize}
+
+\func{void}{wxDisplaySize}{\param{int *}{width}, \param{int *}{height}}
+
+\func{wxSize}{wxGetDisplaySize}{\void}
+
+Returns the display size in pixels.
+
+\membersection{::wxDisplaySizeMM}
+
+\func{void}{wxDisplaySizeMM}{\param{int *}{width}, \param{int *}{height}}
+
+\func{wxSize}{wxGetDisplaySizeMM}{\void}
+
+Returns the display size in millimeters.
+
\membersection{::wxMakeMetafilePlaceable}\label{wxmakemetafileplaceable}
\func{bool}{wxMakeMetafilePlaceable}{\param{const wxString\& }{filename}, \param{int }{minX}, \param{int }{minY},
\section{Clipboard functions}\label{clipsboard}
-These clipboard functions are implemented for Windows only.
+These clipboard functions are implemented for Windows only. The use of these functions
+is deprecated and the code is no longer maintained. Use the \helpref{wxClipboard}{wxclipboard}
+class instead.
\wxheading{Include files}
Enumerates the formats found in a list of available formats that belong
to the clipboard. Each call to this function specifies a known
available format; the function returns the format that appears next in
-the list.
+the list.
{\it dataFormat} specifies a known format. If this parameter is zero,
-the function returns the first format in the list.
+the function returns the first format in the list.
The return value specifies the next known clipboard data format if the
function is successful. It is zero if the {\it dataFormat} parameter specifies
the last format in the list of available formats, or if the clipboard
-is not open.
+is not open.
-Before it enumerates the formats function, an application must open the clipboard by using the
-wxOpenClipboard function.
+Before it enumerates the formats function, an application must open the clipboard by using the
+wxOpenClipboard function.
\membersection{::wxGetClipboardData}
\section{Miscellaneous functions}\label{miscellany}
+\membersection{::wxDROP\_ICON}\label{wxdropicon}
+
+\func{wxIconOrCursor}{wxDROP\_ICON}{\param{const char *}{name}}
+
+This macro creates either a cursor (MSW) or an icon (elsewhere) with the given
+name. Under MSW, the cursor is loaded from the resource file and the icon is
+loaded from XPM file under other platforms.
+
+This macro should be used with
+\helpref{wxDropSource constructor}{wxdropsourcewxdropsource}.
+
+\wxheading{Include files}
+
+<wx/dnd.h>
+
\membersection{::wxNewId}
\func{long}{wxNewId}{\void}
Called when wxWindows exits, to clean up the DDE system. This no longer needs to be
called by the application.
-See also helpref{wxDDEInitialize}{wxddeinitialize}.
+See also \helpref{wxDDEInitialize}{wxddeinitialize}.
\wxheading{Include files}
This no longer needs to be called by the application: it will be called
by wxWindows if necessary.
-See also \helpref{wxDDEServer}{wxddeserver}, \helpref{wxDDEClient}{wxddeclient}, \helpref{wxDDEConnection}{wxddeconnection},
+See also \helpref{wxDDEServer}{wxddeserver}, \helpref{wxDDEClient}{wxddeclient}, \helpref{wxDDEConnection}{wxddeconnection},
\helpref{wxDDECleanUp}{wxddecleanup}.
\wxheading{Include files}
\func{void}{wxDebugMsg}{\param{const wxString\& }{fmt}, \param{...}{}}
+{\bf This function is deprecated, use \helpref{wxLogDebug}{wxlogdebug} instead!}
+
Display a debugging message; under Windows, this will appear on the
debugger command window, and under Unix, it will be written to standard
error.
The syntax is identical to {\bf printf}: pass a format string and a
variable list of arguments.
-Note that under Windows, you can see the debugging messages without a
-debugger if you have the DBWIN debug log application that comes with
-Microsoft C++.
-
{\bf Tip:} under Windows, if your application crashes before the
message appears in the debugging window, put a wxYield call after
each wxDebugMsg call. wxDebugMsg seems to be broken under WIN32s
<wx/gdicmn.h>
+\membersection{::wxEnableTopLevelWindows}\label{wxenabletoplevelwindows}
+
+\func{void}{wxEnableTopLevelWindow}{\param{bool}{ enable = TRUE}}
+
+This function enables or disables all top level windows. It is used by
+\helpref{::wxSafeYield}{wxsafeyield}.
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
\membersection{::wxEntry}\label{wxentry}
This initializes wxWindows in a platform-dependent way. Use this if you
<wx/app.h>
-\membersection{::wxError}\label{wxerror}
+\membersection{::wxEndBusyCursor}\label{wxendbusycursor}
-\func{void}{wxError}{\param{const wxString\& }{msg}, \param{const wxString\& }{title = "wxWindows Internal Error"}}
+\func{void}{wxEndBusyCursor}{\void}
-Displays {\it msg} and continues. This writes to standard error under
-Unix, and pops up a message box under Windows. Used for internal
-wxWindows errors. See also \helpref{wxFatalError}{wxfatalerror}.
+Changes the cursor back to the original cursor, for all windows in the application.
+Use with \helpref{wxBeginBusyCursor}{wxbeginbusycursor}.
+
+See also \helpref{wxIsBusy}{wxisbusy}, \helpref{wxBusyCursor}{wxbusycursor}.
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxEndBusyCursor}\label{wxendbusycursor}
-
-\func{void}{wxEndBusyCursor}{\void}
+\membersection{::wxError}\label{wxerror}
-Changes the cursor back to the original cursor, for all windows in the application.
-Use with \helpref{wxBeginBusyCursor}{wxbeginbusycursor}.
+\func{void}{wxError}{\param{const wxString\& }{msg}, \param{const wxString\& }{title = "wxWindows Internal Error"}}
-See also \helpref{wxIsBusy}{wxisbusy}, \helpref{wxBusyCursor}{wxbusycursor}.
+Displays {\it msg} and continues. This writes to standard error under
+Unix, and pops up a message box under Windows. Used for internal
+wxWindows errors. See also \helpref{wxFatalError}{wxfatalerror}.
\wxheading{Include files}
\func{long}{wxExecute}{\param{char **}{argv}, \param{bool }{sync = FALSE}, \param{wxProcess *}{callback = NULL}}
+\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}}
+
+\func{long}{wxExecute}{\param{const wxString\& }{command}, \param{wxArrayString\& }{output}, \param{wxArrayString\& }{errors}}
+
Executes another program in Unix or Windows.
The first form takes a command string, such as {\tt "emacs file.txt"}.
The second form takes an array of values: a command, any number of
arguments, terminated by NULL.
+The semantics of the third and fourth versions is different from the first two
+and is described in more details below.
+
If {\it sync} is FALSE (the default), flow of control immediately returns.
If TRUE, the current application waits until the other program has terminated.
$-1$ if the process couldn't be started and typically 0 if the process
terminated successfully. Also, while waiting for the process to
terminate, wxExecute will call \helpref{wxYield}{wxyield}. The caller
-should ensure that this can cause no recursion, in the simples case by
+should ensure that this can cause no recursion, in the simplest case by
calling \helpref{wxEnableTopLevelWindows(FALSE)}{wxenabletoplevelwindows}.
For asynchronous execution, however, the return value is the process id and
-zero value indicates that the command could not be executed.
+zero value indicates that the command could not be executed. As an added
+complication, the return value of $-1$ in this case indicattes that we didn't
+launch a new process, but connected to the running one (this can only happen in
+case of using DDE under Windows for command execution). In particular, in this,
+and only this, case the calling code will not get the notification about
+process termination.
If callback isn't NULL and if execution is asynchronous (note that callback
-parameter can not be non NULL for synchronous execution),
+parameter can not be non-NULL for synchronous execution),
\helpref{wxProcess::OnTerminate}{wxprocessonterminate} will be called when
the process finishes.
-See also \helpref{wxShell}{wxshell}, \helpref{wxProcess}{wxprocess}.
+Finally, you may use the third overloaded version of this function to execute
+a process (always synchronously) and capture its output in the array
+{\it output}. The fourth version adds the possibility to additionally capture
+the messages from standard error output in the {\it errors} array.
+
+See also \helpref{wxShell}{wxshell}, \helpref{wxProcess}{wxprocess},
+\helpref{Exec sample}{sampleexec}.
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxFindWindowByLabel}
+\membersection{::wxFindWindowByLabel}\label{wxfindwindowbylabel}
\func{wxWindow *}{wxFindWindowByLabel}{\param{const wxString\& }{label}, \param{wxWindow *}{parent=NULL}}
<wx/utils.h>
+\membersection{::wxFindWindowAtPoint}\label{wxfindwindowatpoint}
+
+\func{wxWindow *}{wxFindWindowAtPoint}{\param{const wxPoint\& }{pt}}
+
+Find the deepest window at the given mouse position in screen coordinates,
+returning the window if found, or NULL if not.
+
+\membersection{::wxFindWindowAtPointer}\label{wxfindwindowatpointer}
+
+\func{wxWindow *}{wxFindWindowAtPointer}{\param{wxPoint\& }{pt}}
+
+Find the deepest window at the mouse pointer position, returning the window
+and current pointer position in screen coordinates.
+
\membersection{::wxGetActiveWindow}\label{wxgetactivewindow}
\func{wxWindow *}{wxGetActiveWindow}{\void}
<wx/utils.h>
-\membersection{::wxGetHomeDir}
+\membersection{::wxGetHomeDir}\label{wxgethomedir}
-\func{wxString}{wxGetHomeDir}{\param{const wxString\& }{buf}}
+\func{wxString}{wxGetHomeDir}{\void}
-Fills the buffer with a string representing the user's home directory (Unix only).
-
-\wxheading{Include files}
+Return the (current) user's home directory.
-<wx/utils.h>
-
-\membersection{::wxGetHostName}
-
-\func{bool}{wxGetHostName}{\param{const wxString\& }{buf}, \param{int}{ bufSize}}
+\wxheading{See also}
-Copies the host name of the machine the program is running on into the
-buffer {\it buf}, of maximum size {\it bufSize}, returning TRUE if
-successful. Under Unix, this will return a machine name. Under Windows,
-this returns ``windows''.
+\helpref{wxGetUserHome}{wxgetuserhome}
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetElapsedTime}\label{wxgetelapsedtime}
-
-\func{long}{wxGetElapsedTime}{\param{bool}{ resetTimer = TRUE}}
-
-Gets the time in milliseconds since the last \helpref{::wxStartTimer}{wxstarttimer}.
+\membersection{::wxGetFreeMemory}\label{wxgetfreememory}
-If {\it resetTimer} is TRUE (the default), the timer is reset to zero
-by this call.
+\func{long}{wxGetFreeMemory}{\void}
-See also \helpref{wxTimer}{wxtimer}.
+Returns the amount of free memory in bytes under environments which
+support it, and -1 if not supported. Currently, it is supported only
+under Windows, Linux and Solaris.
\wxheading{Include files}
-<wx/timer.h>
+<wx/utils.h>
-\membersection{::wxGetFreeMemory}\label{wxgetfreememory}
+\membersection{::wxGetMousePosition}\label{wxgetmouseposition}
-\func{long}{wxGetFreeMemory}{\void}
+\func{wxPoint}{wxGetMousePosition}{\void}
-Returns the amount of free memory in Kbytes under environments which
-support it, and -1 if not supported. Currently, returns a positive value
-under Windows, and -1 under Unix.
+Returns the mouse position in screen coordinates.
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetMousePosition}
+\membersection{::wxGetOsDescription}\label{wxgetosdescription}
-\func{void}{wxGetMousePosition}{\param{int* }{x}, \param{int* }{y}}
+\func{wxString}{wxGetOsDescription}{\void}
-Returns the mouse position in screen coordinates.
+Returns the string containing the description of the current platform in a
+user-readable form. For example, this function may return strings like
+{\tt Windows NT Version 4.0} or {\tt Linux 2.2.2 i386}.
+
+\wxheading{See also}
+
+\helpref{::wxGetOsVersion}{wxgetosversion}
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxGetOsVersion}
+\membersection{::wxGetOsVersion}\label{wxgetosversion}
\func{int}{wxGetOsVersion}{\param{int *}{major = NULL}, \param{int *}{minor = NULL}}
Gets operating system version information.
\begin{twocollist}\itemsep=0pt
-\twocolitemruled{Platform}{Return tyes}
+\twocolitemruled{Platform}{Return types}
\twocolitem{Macintosh}{Return value is wxMACINTOSH.}
-\twocolitem{GTK}{Return value is wxGTK, {\it major} is 1, {\it minor} is 0. (for GTK 1.0.X) }
+\twocolitem{GTK}{Return value is wxGTK, For GTK 1.0, {\it major} is 1, {\it minor} is 0. }
\twocolitem{Motif}{Return value is wxMOTIF\_X, {\it major} is X version, {\it minor} is X revision.}
\twocolitem{OS/2}{Return value is wxOS2\_PM.}
\twocolitem{Windows 3.1}{Return value is wxWINDOWS, {\it major} is 3, {\it minor} is 1.}
-\twocolitem{Windows NT}{Return value is wxWINDOWS\_NT, {\it major} is 3, {\it minor} is 1.}
-\twocolitem{Windows 95}{Return value is wxWIN95, {\it major} is 3, {\it minor} is 1.}
+\twocolitem{Windows NT/2000}{Return value is wxWINDOWS\_NT, version is returned in {\it major} and {\it minor}}
+\twocolitem{Windows 98}{Return value is wxWIN95, {\it major} is 4, {\it minor} is 1 or greater.}
+\twocolitem{Windows 95}{Return value is wxWIN95, {\it major} is 4, {\it minor} is 0.}
\twocolitem{Win32s (Windows 3.1)}{Return value is wxWIN32S, {\it major} is 3, {\it minor} is 1.}
\twocolitem{Watcom C++ 386 supervisor mode (Windows 3.1)}{Return value is wxWIN386, {\it major} is 3, {\it minor} is 1.}
\end{twocollist}
+\wxheading{See also}
+
+\helpref{::wxGetOsDescription}{wxgetosdescription}
+
\wxheading{Include files}
<wx/utils.h>
<wx/utils.h>
+\membersection{::wxGetUserHome}\label{wxgetuserhome}
+
+\func{const wxChar *}{wxGetUserHome}{\param{const wxString\& }{user = ""}}
+
+Returns the home directory for the given user. If the username is empty
+(default value), this function behaves like
+\helpref{wxGetHomeDir}{wxgethomedir}.
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
\membersection{::wxGetUserName}
\func{bool}{wxGetUserName}{\param{const wxString\& }{buf}, \param{int}{ bufSize}}
<wx/utils.h>
-\membersection{::wxKill}\label{wxkill}
+\membersection{::wxHandleFatalExceptions}\label{wxhandlefatalexceptions}
+
+\func{bool}{wxHandleFatalExceptions}{\param{bool}{ doIt = TRUE}}
-\func{int}{wxKill}{\param{long}{ pid}, \param{int}{ sig}}
+If {\it doIt} is TRUE, the fatal exceptions (also known as general protection
+faults under Windows or segmentation violations in the Unix world) will be
+caught and passed to \helpref{wxApp::OnFatalException}{wxapponfatalexception}.
+By default, i.e. before this function is called, they will be handled in the
+normal way which usually just means that the application will be terminated.
+Calling wxHandleFatalExceptions() with {\it doIt} equal to FALSE will restore
+this default behaviour.
-Under Unix (the only supported platform), equivalent to the Unix kill function.
-Returns 0 on success, -1 on failure.
+\membersection{::wxInitAllImageHandlers}\label{wxinitallimagehandlers}
+
+\func{void}{wxInitAllImageHandlers}{\void}
-Tip: sending a signal of 0 to a process returns -1 if the process does not exist.
-It does not raise a signal in the receiving process.
+Initializes all available image handlers. For a list of available handlers,
+see \helpref{wxImage}{wximage}.
+
+\wxheading{See also}
+
+\helpref{wxImage}{wximage}, \helpref{wxImageHandler}{wximagehandler}
\wxheading{Include files}
-<wx/utils.h>
+<wx/image.h>
+
+\membersection{::wxInitialize}\label{wxinitialize}
+
+\func{bool}{wxInitialize}{\void}
+
+This function is used in wxBase only and only if you don't create
+\helpref{wxApp}{wxapp} object at all. In this case you must call it from your
+{\tt main()} function before calling any other wxWindows functions.
+
+If the function returns {\tt FALSE} the initialization could not be performed,
+in this case the library cannot be used and
+\helpref{wxUninitialize}{wxuninitialize} shouldn't be called neither.
+
+This function may be called several times but
+\helpref{wxUninitialize}{wxuninitialize} must be called for each successful
+call to this function.
+
+\wxheading{Include files}
+
+<wx/app.h>
\membersection{::wxIsBusy}\label{wxisbusy}
<wx/utils.h>
+\membersection{::wxKill}\label{wxkill}
+
+\func{int}{wxKill}{\param{long}{ pid}, \param{int}{ sig = wxSIGTERM}, \param{wxKillError }{*rc = NULL}}
+
+Equivalent to the Unix kill function: send the given signal {\it sig} to the
+process with PID {\it pid}. The valud signal values are
+
+\begin{verbatim}
+enum wxSignal
+{
+ wxSIGNONE = 0, // verify if the process exists under Unix
+ wxSIGHUP,
+ wxSIGINT,
+ wxSIGQUIT,
+ wxSIGILL,
+ wxSIGTRAP,
+ wxSIGABRT,
+ wxSIGEMT,
+ wxSIGFPE,
+ wxSIGKILL, // forcefully kill, dangerous!
+ wxSIGBUS,
+ wxSIGSEGV,
+ wxSIGSYS,
+ wxSIGPIPE,
+ wxSIGALRM,
+ wxSIGTERM // terminate the process gently
+};
+\end{verbatim}
+
+{\tt wxSIGNONE}, {\tt wxSIGKILL} and {\tt wxSIGTERM} have the same meaning
+under both Unix and Windows but all the other signals are equivalent to
+{\tt wxSIGTERM} under Windows.
+
+Returns 0 on success, -1 on failure. If {\it rc} parameter is not NULL, it will
+be filled with an element of {\tt wxKillError} enum:
+
+\begin{verbatim}
+enum wxKillError
+{
+ wxKILL_OK, // no error
+ wxKILL_BAD_SIGNAL, // no such signal
+ wxKILL_ACCESS_DENIED, // permission denied
+ wxKILL_NO_PROCESS, // no such process
+ wxKILL_ERROR // another, unspecified error
+};
+\end{verbatim}
+
+\wxheading{See also}
+
+\helpref{wxProcess::Kill}{wxprocesskill},\rtfsp
+\helpref{wxProcess::Exists}{wxprocessexists},\rtfsp
+\helpref{Exec sample}{sampleexec}
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
\membersection{::wxLoadUserResource}\label{wxloaduserresource}
\func{wxString}{wxLoadUserResource}{\param{const wxString\& }{resourceName}, \param{const wxString\& }{resourceType=``TEXT"}}
<wx/utils.h>
-\membersection{::wxSafeYield}\label{wxsafeyield}
+\membersection{::wxPostEvent}\label{wxpostevent}
-\func{bool}{wxSafeYield}{\param{wxWindow*}{ win = NULL}}
+\func{void}{wxPostEvent}{\param{wxEvtHandler *}{dest}, \param{wxEvent\& }{event}}
-This function is similar to wxYield, except that it disables the user input to
-all program windows before calling wxYield and re-enables it again
-afterwards. If {\it win} is not NULL, this window will remain enabled,
-allowing the implementation of some limited user interaction.
+This function posts the event to the specified {\it dest} object. The
+difference between sending an event and posting it is that in the first case
+the event is processed before the function returns (in wxWindows, event sending
+is done with \helpref{ProcessEvent}{wxevthandlerprocessevent} function), but in
+the second, the function returns immediately and the event will be processed
+sometime later - usually during the next even loop iteration.
-Returns the result of the call to \helpref{::wxYield}{wxyield}.
+Note that a copy of the {\it event} is made by the function, so the original
+copy can be deleted as soon as function returns. This function can also be used
+to send events between different threads safely. As this function makes a
+copy of the event, the event needs to have a fully implemented Clone() method,
+which may not be the case for all event in wxWindows.
+
+See also \helpref{AddPendingEvent}{wxevthandleraddpendingevent} (which this function
+uses internally).
\wxheading{Include files}
-<wx/utils.h>
+<wx/app.h>
-\membersection{::wxEnableTopLevelWindows}\label{wxenabletoplevelwindows}
+\membersection{::wxSafeYield}\label{wxsafeyield}
-\func{void}{wxEnableTopLevelWindow}{\param{bool}{ enable = TRUE}}
+\func{bool}{wxSafeYield}{\param{wxWindow*}{ win = NULL}}
-This function enables or disables all top level windows. It is used by
-\helpref{::wxSafeYield}{wxsafeyield}.
+This function is similar to wxYield, except that it disables the user input to
+all program windows before calling wxYield and re-enables it again
+afterwards. If {\it win} is not NULL, this window will remain enabled,
+allowing the implementation of some limited user interaction.
+
+Returns the result of the call to \helpref{::wxYield}{wxyield}.
\wxheading{Include files}
<wx/utils.h>
-
\membersection{::wxSetDisplayName}\label{wxsetdisplayname}
\func{void}{wxSetDisplayName}{\param{const wxString\& }{displayName}}
Executes a command in an interactive shell window. If no command is
specified, then just the shell is spawned.
-See also \helpref{wxExecute}{wxexecute}.
+See also \helpref{wxExecute}{wxexecute}, \helpref{Exec sample}{sampleexec}.
\wxheading{Include files}
<wx/utils.h>
-\membersection{::wxStartTimer}\label{wxstarttimer}
-
-\func{void}{wxStartTimer}{\void}
-
-Starts a stopwatch; use \helpref{::wxGetElapsedTime}{wxgetelapsedtime} to get the elapsed time.
-
-See also \helpref{wxTimer}{wxtimer}.
-
-\wxheading{Include files}
-
-<wx/timer.h>
-
\membersection{::wxToLower}\label{wxtolower}
\func{char}{wxToLower}{\param{char }{ch}}
<wx/memory.h>
+\membersection{::wxTrap}\label{wxtrap}
+
+\func{void}{wxTrap}{\void}
+
+In debug mode (when {\tt \_\_WXDEBUG\_\_} is defined) this function generates a
+debugger exception meaning that the control is passed to the debugger if one is
+attached to the process. Otherwise the program just terminates abnormally.
+
+In release mode this function does nothing.
+
+\wxheading{Include files}
+
+<wx/debug.h>
+
+\membersection{::wxUninitialize}\label{wxuninitialize}
+
+\func{void}{wxUninitialize}{\void}
+
+This function is for use in console (wxBase) programs only. It must be called
+once for each previous successful call to \helpref{wxInitialize}{wxinitialize}.
+
+\wxheading{Include files}
+
+<wx/app.h>
+
\membersection{::wxUsleep}\label{wxusleep}
\func{void}{wxUsleep}{\param{unsigned long}{ milliseconds}}
Yields control to pending messages in the windowing system. This can be useful, for example, when a
time-consuming process writes to a text window. Without an occasional
-yield, the text window will not be updated properly, and (since Windows
-multitasking is cooperative) other processes will not respond.
+yield, the text window will not be updated properly, and on systems with
+cooperative multitasking, such as Windows 3.1 other processes will not respond.
Caution should be exercised, however, since yielding may allow the
user to perform actions which are not compatible with the current task.
reentrance of code: see \helpref{::wxSafeYield}{wxsafeyield} for a better
function.
+Note that wxYield will not flush the message logs. This is intentional as
+calling wxYield is usually done to quickly update the screen and popping up a
+message box dialog may be undesirable. If you do wish to flush the log
+messages immediately (otherwise it will be done during the next idle loop
+iteration), call \helpref{wxLog::FlushActive}{wxlogflushactive}.
+
\wxheading{Include files}
-<wx/utils.h>
+<wx/app.h> or <wx/utils.h>
+
+\membersection{::wxWakeUpIdle}\label{wxwakeupidle}
+
+\func{void}{wxWakeUpIdle}{\void}
+
+This functions wakes up the (internal and platform dependent) idle system, i.e. it
+will force the system to send an idle event even if the system currently {\it is}
+ idle and thus would not send any idle event until after some other event would get
+sent. This is also useful for sending events between two threads and is used by
+the corresponding functions \helpref{::wxPostEvent}{wxpostevent} and
+\helpref{wxEvtHandler::AddPendingEvent}{wxevthandleraddpendingevent}.
+
+\wxheading{Include files}
+
+<wx/app.h>
\section{Macros}\label{macros}
This macro will swap the bytes of the {\it value} variable from little
endian to big endian or vice versa if the program is compiled on a
-big-endian architecture (such as Sun work stations). If the program has
+big-endian architecture (such as Sun work stations). If the program has
been compiled on a little-endian architecture, the value will be unchanged.
-Use these macros to read data from and write data to a file that stores
+Use these macros to read data from and write data to a file that stores
data in little endian (Intel i386) format.
\membersection{wxINTXX\_SWAP\_ON\_LE}\label{intswaponle}
This macro will swap the bytes of the {\it value} variable from little
endian to big endian or vice versa if the program is compiled on a
-little-endian architecture (such as Intel PCs). If the program has
+little-endian architecture (such as Intel PCs). If the program has
been compiled on a big-endian architecture, the value will be unchanged.
-Use these macros to read data from and write data to a file that stores
+Use these macros to read data from and write data to a file that stores
data in big endian format.
\membersection{CLASSINFO}\label{classinfo}
\func{}{DECLARE\_DYNAMIC\_CLASS}{className}
Used inside a class declaration to declare that the objects of this class should be dynamically
-createable from run-time type information.
+creatable from run-time type information.
Example:
<wx/object.h>
+\membersection{wxBITMAP}\label{wxbitmapmacro}
+
+\func{}{wxBITMAP}{bitmapName}
+
+This macro loads a bitmap from either application resources (on the platforms
+for which they exist, i.e. Windows and OS2) or from an XPM file. It allows to
+avoid using {\tt \#ifdef}s when creating bitmaps.
+
+\wxheading{See also}
+
+\helpref{Bitmaps and icons overview}{wxbitmapoverview},
+\helpref{wxICON}{wxiconmacro}
+
+\wxheading{Include files}
+
+<wx/gdicmn.h>
+
+\membersection{wxConstCast}\label{wxconstcast}
+
+\func{classname *}{wxConstCast}{ptr, classname}
+
+This macro expands into {\tt const\_cast<classname *>(ptr)} if the compiler
+supports {\it const\_cast} or into an old, C-style cast, otherwise.
+
+\wxheading{See also}
+
+\helpref{wxDynamicCast}{wxdynamiccast}\\
+\helpref{wxStaticCast}{wxstaticcast}
+
\membersection{WXDEBUG\_NEW}\label{debugnew}
\func{}{WXDEBUG\_NEW}{arg}
\membersection{wxDynamicCast}\label{wxdynamiccast}
-\func{}{wxDynamicCast}{ptr, classname}
+\func{classname *}{wxDynamicCast}{ptr, classname}
This macro returns the pointer {\it ptr} cast to the type {\it classname *} if
-the pointer is of this type (the check is done during the run-time) or NULL
-otherwise. Usage of this macro is prefered over obsoleted wxObject::IsKindOf()
-function.
+the pointer is of this type (the check is done during the run-time) or
+{\tt NULL} otherwise. Usage of this macro is preferred over obsoleted
+wxObject::IsKindOf() function.
-The {\it ptr} argument may be NULL, in which case NULL will be returned.
+The {\it ptr} argument may be {\tt NULL}, in which case {\tt NULL} will be
+returned.
Example:
}
else
{
- // no window has the focus or it's not a text control
+ // no window has the focus or it is not a text control
}
\end{verbatim}
\wxheading{See also}
-\helpref{RTTI overview}{runtimeclassoverview}
+\helpref{RTTI overview}{runtimeclassoverview}\\
+\helpref{wxDynamicCastThis}{wxdynamiccastthis}\\
+\helpref{wxConstCast}{wxconstcast}\\
+\helpref{wxStatiicCast}{wxstaticcast}
+
+\membersection{wxDynamicCastThis}\label{wxdynamiccastthis}
+
+\func{classname *}{wxDynamicCastThis}{classname}
+
+This macro is equivalent to {\tt wxDynamicCast(this, classname)} but the
+latter provokes spurious compilation warnings from some compilers (because it
+tests whether {\tt this} pointer is non {\tt NULL} which is always true), so
+this macro should be used to avoid them.
+
+\wxheading{See also}
+
+\helpref{wxDynamicCast}{wxdynamiccast}
+
+\membersection{wxICON}\label{wxiconmacro}
+
+\func{}{wxICON}{iconName}
+
+This macro loads an icon from either application resources (on the platforms
+for which they exist, i.e. Windows and OS2) or from an XPM file. It allows to
+avoid using {\tt \#ifdef}s when creating icons.
+
+\wxheading{See also}
+
+\helpref{Bitmaps and icons overview}{wxbitmapoverview},
+\helpref{wxBITMAP}{wxbitmapmacro}
+
+\wxheading{Include files}
+
+<wx/gdicmn.h>
+
+\membersection{wxStaticCast}\label{wxstaticcast}
+
+\func{classname *}{wxStaticCast}{ptr, classname}
+
+This macro checks that the cast is valid in debug mode (an assert failure will
+result if {\tt wxDynamicCast(ptr, classname) == NULL}) and then returns the
+result of executing an equivalent of {\tt static\_cast<classname *>(ptr)}.
+
+\helpref{wxDynamicCast}{wxdynamiccast}\\
+\helpref{wxConstCast}{wxconstcast}
\membersection{WXTRACE}\label{trace}
\normalbox{Please note that this use of the word `resource' is different from that used when talking
about initialisation file resource reading and writing, using such functions
-as wxWriteResource and wxGetResource. It's just an unfortunate clash of terminology.}
+as wxWriteResource and wxGetResource. It is just an unfortunate clash of terminology.}
\helponly{For an overview of the wxWindows resource mechanism, see \helpref{the wxWindows resource system}{resourceformats}.}
See also \helpref{wxWindow::LoadFromResource}{wxwindowloadfromresource} for
loading from resource data.
-{\bf Warning:} this needs updating for wxWindows 2.
-
\membersection{::wxResourceAddIdentifier}\label{wxresourceaddidentifier}
\func{bool}{wxResourceAddIdentifier}{\param{const wxString\& }{name}, \param{int }{value}}
Used for associating a name with an integer identifier (equivalent to dynamically\rtfsp
-\verb$#$defining a name to an integer). Unlikely to be used by an application except
+\tt{#}defining a name to an integer). Unlikely to be used by an application except
perhaps for implementing resource functionality for interpreted languages.
\membersection{::wxResourceClear}
the following:
\begin{verbatim}
-static const wxString\& aiai_resource = "bitmap(name = 'aiai_resource',\
- bitmap = ['aiai', wxBITMAP_TYPE_BMP_RESOURCE, 'WINDOWS'],\
- bitmap = ['aiai.xpm', wxBITMAP_TYPE_XPM, 'X']).";
+static const wxString\& project_resource = "bitmap(name = 'project_resource',\
+ bitmap = ['project', wxBITMAP_TYPE_BMP_RESOURCE, 'WINDOWS'],\
+ bitmap = ['project.xpm', wxBITMAP_TYPE_XPM, 'X']).";
\end{verbatim}
then this function can be called as follows:
\begin{verbatim}
- wxBitmap *bitmap = wxResourceCreateBitmap("aiai_resource");
+ wxBitmap *bitmap = wxResourceCreateBitmap("project_resource");
\end{verbatim}
\membersection{::wxResourceCreateIcon}
the following:
\begin{verbatim}
-static const wxString\& aiai_resource = "icon(name = 'aiai_resource',\
- icon = ['aiai', wxBITMAP_TYPE_ICO_RESOURCE, 'WINDOWS'],\
- icon = ['aiai', wxBITMAP_TYPE_XBM_DATA, 'X']).";
+static const wxString\& project_resource = "icon(name = 'project_resource',\
+ icon = ['project', wxBITMAP_TYPE_ICO_RESOURCE, 'WINDOWS'],\
+ icon = ['project', wxBITMAP_TYPE_XBM_DATA, 'X']).";
\end{verbatim}
then this function can be called as follows:
\begin{verbatim}
- wxIcon *icon = wxResourceCreateIcon("aiai_resource");
+ wxIcon *icon = wxResourceCreateIcon("project_resource");
\end{verbatim}
\membersection{::wxResourceCreateMenuBar}
title = 'Test dialog box',
x = 312, y = 234, width = 400, height = 300,
modal = 0,
- control = [wxGroupBox, 'Groupbox', '0', 'group6', 5, 4, 380, 262,
+ control = [1000, wxStaticBox, 'Groupbox', '0', 'group6', 5, 4, 380, 262,
[11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]],
- control = [wxMultiText, 'Multitext', 'wxVERTICAL_LABEL', 'multitext3',
+ control = [1001, wxTextCtrl, '', 'wxTE_MULTILINE', 'text3',
156, 126, 200, 70, 'wxWindows is a multi-platform, GUI toolkit.',
[11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0],
[11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]]).
\membersection{::wxResourceParseString}\label{wxresourceparsestring}
-\func{bool}{wxResourceParseString}{\param{const wxString\& }{resource}, \param{wxResourceTable *}{table = NULL}}
+\func{bool}{wxResourceParseString}{\param{char*}{ s}, \param{wxResourceTable *}{table = NULL}}
Parses a string containing one or more wxWindows resource objects. If
the resource objects are global static data that are included into the
{\it resource} should contain data with the following form:
\begin{verbatim}
-static const wxString\& dialog1 = "dialog(name = 'dialog1',\
- style = 'wxCAPTION | wxDEFAULT_DIALOG_STYLE',\
- title = 'Test dialog box',\
- x = 312, y = 234, width = 400, height = 300,\
- modal = 0,\
- control = [wxGroupBox, 'Groupbox', '0', 'group6', 5, 4, 380, 262,\
- [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]],\
- control = [wxMultiText, 'Multitext', 'wxVERTICAL_LABEL', 'multitext3',\
- 156, 126, 200, 70, 'wxWindows is a multi-platform, GUI toolkit.',\
- [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0],\
- [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]]).";
+dialog(name = 'dialog1',
+ style = 'wxCAPTION | wxDEFAULT_DIALOG_STYLE',
+ title = 'Test dialog box',
+ x = 312, y = 234, width = 400, height = 300,
+ modal = 0,
+ control = [1000, wxStaticBox, 'Groupbox', '0', 'group6', 5, 4, 380, 262,
+ [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]],
+ control = [1001, wxTextCtrl, '', 'wxTE_MULTILINE', 'text3',
+ 156, 126, 200, 70, 'wxWindows is a multi-platform, GUI toolkit.',
+ [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0],
+ [11, 'wxSWISS', 'wxNORMAL', 'wxNORMAL', 0]]).
\end{verbatim}
This function will typically be used after calling \helpref{wxLoadUserResource}{wxloaduserresource} to
\membersection{::wxResourceRegisterBitmapData}\label{registerbitmapdata}
-\func{bool}{wxResourceRegisterBitmapData}{\param{const wxString\& }{name}, \param{const wxString\& }{xbm\_data}, \param{int }{width},
+\func{bool}{wxResourceRegisterBitmapData}{\param{const wxString\& }{name}, \param{char* }{xbm\_data}, \param{int }{width},
\param{int }{height}, \param{wxResourceTable *}{table = NULL}}
-\func{bool}{wxResourceRegisterBitmapData}{\param{const wxString\& }{name}, \param{const wxString\& *}{xpm\_data}}
+\func{bool}{wxResourceRegisterBitmapData}{\param{const wxString\& }{name}, \param{char** }{xpm\_data}}
-Makes \verb$#$included XBM or XPM bitmap data known to the wxWindows resource system.
+Makes \tt{#}included XBM or XPM bitmap data known to the wxWindows resource system.
This is required if other resources will use the bitmap data, since otherwise there
is no connection between names used in resources, and the global bitmap data.
\section{Log functions}\label{logfunctions}
These functions provide a variety of logging functions: see \helpref{Log classes overview}{wxlogoverview} for
-further information.
+further information. The functions use (implicitly) the currently active log
+target, so their descriptions here may not apply if the log target is not the
+standard one (installed by wxWindows in the beginning of the program).
\wxheading{Include files}
\func{void}{wxLogError}{\param{const char*}{ formatString}, \param{...}{}}
-The function to use for error messages, i.e. the
-messages that must be shown to the user. The default processing is to pop up a
-message box to inform the user about it.
+The function to use for error messages, i.e. the messages that must be shown
+to the user. The default processing is to pop up a message box to inform the
+user about it.
\membersection{::wxLogFatalError}\label{wxlogfatalerror}
\func{void}{wxLogWarning}{\param{const char*}{ formatString}, \param{...}{}}
-For warnings - they are also normally shown to the
-user, but don't interrupt the program work.
+For warnings - they are also normally shown to the user, but don't interrupt
+the program work.
\membersection{::wxLogMessage}\label{wxlogmessage}
\func{void}{wxLogMessage}{\param{const char*}{ formatString}, \param{...}{}}
-for all normal, informational messages. They also
-appear in a message box by default (but it can be changed). Notice
-that the standard behaviour is to not show informational messages if there are
-any errors later - the logic being that the later error messages make the
-informational messages preceding them meaningless.
+for all normal, informational messages. They also appear in a message box by
+default (but it can be changed). Notice that the standard behaviour is to not
+show informational messages if there are any errors later - the logic being
+that the later error messages make the informational messages preceding them
+meaningless.
\membersection{::wxLogVerbose}\label{wxlogverbose}
\func{void}{wxLogVerbose}{\param{const char*}{ formatString}, \param{...}{}}
-For verbose output. Normally, it's suppressed, but
+For verbose output. Normally, it is suppressed, but
might be activated if the user wishes to know more details about the program
progress (another, but possibly confusing name for the same function is {\bf wxLogInfo}).
\membersection{::wxLogStatus}\label{wxlogstatus}
+\func{void}{wxLogStatus}{\param{wxFrame *}{frame}, \param{const char*}{ formatString}, \param{...}{}}
+
\func{void}{wxLogStatus}{\param{const char*}{ formatString}, \param{...}{}}
-For status messages - they will go into the status
-bar of the active or specified (as the first argument) \helpref{wxFrame}{wxframe} if it has one.
+Messages logged by this function will appear in the statusbar of the {\it
+frame} or of the top level application window by default (i.e. when using
+the second version of the function).
+
+If the target frame doesn't have a statusbar, the message will be lost.
\membersection{::wxLogSysError}\label{wxlogsyserror}
\func{void}{wxLogSysError}{\param{const char*}{ formatString}, \param{...}{}}
-Mostly used by wxWindows itself, but might be
-handy for logging errors after system call (API function) failure. It logs the
-specified message text as well as the last system error code ({\it errno} or {\it ::GetLastError()} depending
-on the platform) and the corresponding error
-message. The second form of this function takes the error code explitly as the
-first argument.
+Mostly used by wxWindows itself, but might be handy for logging errors after
+system call (API function) failure. It logs the specified message text as well
+as the last system error code ({\it errno} or {\it ::GetLastError()} depending
+on the platform) and the corresponding error message. The second form
+of this function takes the error code explicitly as the first argument.
+
+\wxheading{See also}
+
+\helpref{wxSysErrorCode}{wxsyserrorcode},
+\helpref{wxSysErrorMsg}{wxsyserrormsg}
\membersection{::wxLogDebug}\label{wxlogdebug}
\func{void}{wxLogDebug}{\param{const char*}{ formatString}, \param{...}{}}
-The right function for debug output. It only
-does anything at all in the debug mode (when the preprocessor symbol \_\_WXDEBUG\_\_ is defined)
-and expands to nothing in release mode (otherwise).
+The right function for debug output. It only does anything at all in the debug
+mode (when the preprocessor symbol \_\_WXDEBUG\_\_ is defined) and expands to
+nothing in release mode (otherwise).
\membersection{::wxLogTrace}\label{wxlogtrace}
\func{void}{wxLogTrace}{\param{const char*}{ formatString}, \param{...}{}}
-\func{void}{wxLogTrace}{\param{wxTraceMask}{ mask}, \param{const char*}{ formatString}, \param{...}{}}
+\func{void}{wxLogTrace}{\param{const char *}{mask}, \param{const char *}{formatString}, \param{...}{}}
-As {\bf wxLogDebug}, only does something in debug
-build. The reason for making it a separate function from it is that usually
-there are a lot of trace messages, so it might make sense to separate them
-from other debug messages which would be flooded in them. Moreover, the second
-version of this function takes a trace mask as the first argument which allows
-to further restrict the amount of messages generated. The value of {\it mask} can be:
+\func{void}{wxLogTrace}{\param{wxTraceMask}{ mask}, \param{const char *}{formatString}, \param{...}{}}
+
+As {\bf wxLogDebug}, trace functions only do something in debug build and
+expand to nothing in the release one. The reason for making
+it a separate function from it is that usually there are a lot of trace
+messages, so it might make sense to separate them from other debug messages.
+
+The trace messages also usually can be separated into different categories and
+the second and third versions of this function only log the message if the
+{\it mask} which it has is currently enabled in \helpref{wxLog}{wxlog}. This
+allows to selectively trace only some operations and not others by changing
+the value of the trace mask (possible during the run-time).
+
+For the second function (taking a string mask), the message is logged only if
+the mask has been previously enabled by the call to
+\helpref{AddTraceMask}{wxlogaddtracemask}. The predefined string trace masks
+used by wxWindows are:
+
+\begin{itemize}\itemsep=0pt
+\item wxTRACE\_MemAlloc: trace memory allocation (new/delete)
+\item wxTRACE\_Messages: trace window messages/X callbacks
+\item wxTRACE\_ResAlloc: trace GDI resource allocation
+\item wxTRACE\_RefCount: trace various ref counting operations
+\item wxTRACE\_OleCalls: trace OLE method calls (Win32 only)
+\end{itemize}
+
+The third version of the function only logs the message if all the bit
+corresponding to the {\it mask} are set in the wxLog trace mask which can be
+set by \helpref{SetTraceMask}{wxlogsettracemask}. This version is less
+flexible than the previous one because it doesn't allow defining the user
+trace masks easily - this is why it is deprecated in favour of using string
+trace masks.
\begin{itemize}\itemsep=0pt
\item wxTraceMemAlloc: trace memory allocation (new/delete)
\item wxTraceMessages: trace window messages/X callbacks
\item wxTraceResAlloc: trace GDI resource allocation
\item wxTraceRefCount: trace various ref counting operations
+\item wxTraceOleCalls: trace OLE method calls (Win32 only)
\end{itemize}
+\membersection{::wxSysErrorCode}\label{wxsyserrorcode}
+
+\func{unsigned long}{wxSysErrorCode}{\void}
+
+Returns the error code from the last system call. This function uses
+{\tt errno} on Unix platforms and {\tt GetLastError} under Win32.
+
+\wxheading{See also}
+
+\helpref{wxSysErrorMsg}{wxsyserrormsg},
+\helpref{wxLogSysError}{wxlogsyserror}
+
+\membersection{::wxSysErrorMsg}\label{wxsyserrormsg}
+
+\func{const wxChar *}{wxSysErrorMsg}{\param{unsigned long }{errCode = 0}}
+
+Returns the error message corresponding to the given system error code. If
+{\it errCode} is $0$ (default), the last error code (as returned by
+\helpref{wxSysErrorCode}{wxsyserrorcode}) is used.
+
+\wxheading{See also}
+
+\helpref{wxSysErrorCode}{wxsyserrorcode},
+\helpref{wxLogSysError}{wxlogsyserror}
+
+\section{Time functions}\label{timefunctions}
+
+The functions in this section deal with getting the current time and
+starting/stopping the global timers. Please note that the timer functions are
+deprecated because they work with one global timer only and
+\helpref{wxTimer}{wxtimer} and/or \helpref{wxStopWatch}{wxstopwatch} classes
+should be used instead. For retrieving the current time, you may also use
+\helpref{wxDateTime::Now}{wxdatetimenow} or
+\helpref{wxDateTime::UNow}{wxdatetimeunow} methods.
+
+\membersection{::wxGetElapsedTime}\label{wxgetelapsedtime}
+
+\func{long}{wxGetElapsedTime}{\param{bool}{ resetTimer = TRUE}}
+
+Gets the time in milliseconds since the last \helpref{::wxStartTimer}{wxstarttimer}.
+
+If {\it resetTimer} is TRUE (the default), the timer is reset to zero
+by this call.
+
+See also \helpref{wxTimer}{wxtimer}.
+
+\wxheading{Include files}
+
+<wx/timer.h>
+
+\membersection{::wxGetLocalTime}\label{wxgetlocaltime}
+
+\func{long}{wxGetLocalTime}{\void}
+
+Returns the number of seconds since local time 00:00:00 Jan 1st 1970.
+
+\wxheading{See also}
+
+\helpref{wxDateTime::Now}{wxdatetimenow}
+
+\wxheading{Include files}
+
+<wx/timer.h>
+
+\membersection{::wxGetLocalTimeMillis}\label{wxgetlocaltimemillis}
+
+\func{wxLongLone}{wxGetLocalTimeMillis}{\void}
+
+Returns the number of milliseconds since local time 00:00:00 Jan 1st 1970.
+
+\wxheading{See also}
+
+\helpref{wxDateTime::Now}{wxdatetimenow},\\
+\helpref{wxLongLone}{wxlonglong}
+
+\wxheading{Include files}
+
+<wx/timer.h>
+
+\membersection{::wxGetUTCTime}\label{wxgetutctime}
+
+\func{long}{wxGetUTCTime}{\void}
+
+Returns the number of seconds since GMT 00:00:00 Jan 1st 1970.
+
+\wxheading{See also}
+
+\helpref{wxDateTime::Now}{wxdatetimenow}
+
+\wxheading{Include files}
+
+<wx/timer.h>
+
+\membersection{::wxStartTimer}\label{wxstarttimer}
+
+\func{void}{wxStartTimer}{\void}
+
+Starts a stopwatch; use \helpref{::wxGetElapsedTime}{wxgetelapsedtime} to get the elapsed time.
+
+See also \helpref{wxTimer}{wxtimer}.
+
+\wxheading{Include files}
+
+<wx/timer.h>
+
\section{Debugging macros and functions}\label{debugmacros}
-Useful macros and functins for error checking and defensive programming. ASSERTs are only
+Useful macros and functions for error checking and defensive programming. ASSERTs are only
compiled if \_\_WXDEBUG\_\_ is defined, whereas CHECK macros stay in release
builds.
Checks that the condition is true, returns with the given return value if not (FAILs in debug mode).
This check is done even in release mode.
-This macro may be only used in non void functions, see also
+This macro may be only used in non void functions, see also
\helpref{wxCHECK\_RET}{wxcheckret}.
\membersection{wxCHECK\_RET}\label{wxcheckret}
Checks that the condition is true, and returns if not (FAILs with given error
message in debug mode). This check is done even in release mode.
-This macro should be used in void functions instead of
+This macro should be used in void functions instead of
\helpref{wxCHECK\_MSG}{wxcheckmsg}.
\membersection{wxCHECK2}\label{wxcheck2}
\func{}{wxCHECK2}{\param{}{condition}, \param{}{operation}}
-Checks that the condition is true and \helpref{wxFAIL}{wxfail} and execute
-{\it operation} if it is not. This is a generalisation of
+Checks that the condition is true and \helpref{wxFAIL}{wxfail} and execute
+{\it operation} if it is not. This is a generalisation of
\helpref{wxCHECK}{wxcheck} and may be used when something else than just
returning from the function must be done when the {\it condition} is false.
\func{}{wxCHECK2}{\param{}{condition}, \param{}{operation}, \param{}{msg}}
-This is the same as \helpref{wxCHECK2}{wxcheck2}, but
+This is the same as \helpref{wxCHECK2}{wxcheck2}, but
\helpref{wxFAIL\_MSG}{wxfailmsg} with the specified {\it msg} is called
instead of wxFAIL() if the {\it condition} is false.
+\section{Environment access functions}\label{environfunctions}
+
+The functions in this section allow to access (get) or change value of
+environment variables in a portable way. They are currently implemented under
+Win32 and POSIX-like systems (Unix).
+
+% TODO add some stuff about env var inheriting but not propagating upwards (VZ)
+
+\wxheading{Include files}
+
+<wx/utils.h>
+
+\membersection{wxGetenv}\label{wxgetenvmacro}
+
+\func{wxChar *}{wxGetEnv}{\param{const wxString\&}{ var}}
+
+This is a macro defined as {\tt getenv()} or its wide char version in Unicode
+mode.
+
+Note that under Win32 it may not return correct value for the variables set
+with \helpref{wxSetEnv}{wxsetenv}, use \helpref{wxGetEnv}{wxgetenv} function
+instead.
+
+\membersection{wxGetEnv}\label{wxgetenv}
+
+\func{bool}{wxGetEnv}{\param{const wxString\&}{ var}, \param{wxString *}{value}}
+
+Returns the current value of the environment variable {\it var} in {\it value}.
+{\it value} may be {\tt NULL} if you just want to know if the variable exists
+and are not interested in its value.
+
+Returns {\tt TRUE} if the variable exists, {\tt FALSE} otherwise.
+
+\membersection{wxSetEnv}\label{wxsetenv}
+
+\func{bool}{wxSetEnv}{\param{const wxString\&}{ var}, \param{const wxChar *}{value}}
+
+Sets the value of the environment variable {\it var} (adding it if necessary)
+to {\it value}.
+
+Returns {\tt TRUE} on success.
+
+\membersection{wxUnsetEnv}\label{wxunsetenv}
+
+\func{bool}{wxUnsetEnv}{\param{const wxString\&}{ var}}
+
+Removes the variable {\it var} from the environment.
+\helpref{wxGetEnv}{wxgetenv} will return {\tt NULL} after the call to this
+function.
+
+Returns {\tt TRUE} on success.
+
+
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