removed small as otherwise the code was apparently unreadable in HTML docs

[wxWidgets.git] / docs / latex / wx / function.tex

diff --git a/docs/latex/wx/function.tex b/docs/latex/wx/function.tex
index 01e171f8fa2d8988772f110fd9b0a43d2d25aac8..49affc0f53d98eb1fa95173fd8390c861174a078 100644 (file)
--- a/docs/latex/wx/function.tex
+++ b/docs/latex/wx/function.tex
@@ -11,7 +11,7 @@ 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
 \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
+\item {\tt wxRELEASE\_NUMBER} is the release number

 \end{itemize}
 
 For example, the values or these constants for wxWindows 2.1.15 are 2, 1 and
 \end{itemize}
 
 For example, the values or these constants for wxWindows 2.1.15 are 2, 1 and


@@ -177,6 +177,27 @@ Returns the next file that matches the path passed to \helpref{wxFindFirstFile}{
 
 See \helpref{wxFindFirstFile}{wxfindfirstfile} for an example.
 
 
 See \helpref{wxFindFirstFile}{wxfindfirstfile} for an example.
 

+\membersection{::wxGetDiskSpace}\label{wxgetdiskspace}
+
+\func{bool}{wxGetDiskSpace}{\param{const wxString\& }{path}, \param{wxLongLong }{*total = NULL}, \param{wxLongLong }{*free = NULL}}
+
+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.
+
+\wxheading{Returns}
+
+{\tt TRUE} on success, {\tt FALSE} if an error occured (for example, the
+directory doesn't exist).
+
+\wxheading{Portability}
+
+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}
 \membersection{::wxGetOSDirectory}\label{wxgetosdirectory}
 
 \func{wxString}{wxGetOSDirectory}{\void}


@@ -576,6 +597,32 @@ is remembered between the 2 program runs.}
 
 <wx/tipdlg.h>
 
 
 <wx/tipdlg.h>
 

+\membersection{::wxDirSelector}\label{wxdirselector}
+
+\func{wxString}{wxDirSelector}{\param{const wxString\& }{message = wxDirSelectorPromptStr},\\
+ \param{const wxString\& }{default\_path = ""},\\
+ \param{long }{style = 0}, \param{const wxPoint\& }{pos = wxDefaultPosition},\\
+ \param{wxWindow *}{parent = NULL}}
+
+Pops up a directory selector dialog. The arguments have the same meaning as
+those of wxDirDialog::wxDirDialog(). The message is displayed at the top,
+and the default\_path, if specified, is set as the initial selection.
+
+The application must check for an empty return value (if the user pressed
+Cancel). For example:
+
+\begin{verbatim}
+const wxString& dir = wxDirSelector("Choose a folder");
+if ( !dir.empty() )
+{
+  ...
+}
+\end{verbatim}
+
+\wxheading{Include files}
+
+<wx/dirdlg.h>
+

 \membersection{::wxFileSelector}\label{wxfileselector}
 
 \func{wxString}{wxFileSelector}{\param{const wxString\& }{message}, \param{const wxString\& }{default\_path = ""},\\
 \membersection{::wxFileSelector}\label{wxfileselector}
 
 \func{wxString}{wxFileSelector}{\param{const wxString\& }{message}, \param{const wxString\& }{default\_path = ""},\\


@@ -1651,7 +1698,7 @@ Gets operating system version information.
 
 \begin{twocollist}\itemsep=0pt
 \twocolitemruled{Platform}{Return types}
 
 \begin{twocollist}\itemsep=0pt
 \twocolitemruled{Platform}{Return types}

-\twocolitem{Macintosh}{Return value is wxMACINTOSH.}
+\twocolitem{Mac OS}{Return value is wxMAC when compiled with CodeWarrior under Mac OS 8.x/9.x and Mac OS X, wxMAC\_DARWIN when compiled with the Apple Developer Tools under Mac OS 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{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.}


@@ -1772,15 +1819,15 @@ see \helpref{wxImage}{wximage}.
 
 \func{bool}{wxInitialize}{\void}
 
 
 \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 
+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,
 {\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 
+in this case the library cannot be used and

 \helpref{wxUninitialize}{wxuninitialize} shouldn't be called neither.
 
 \helpref{wxUninitialize}{wxuninitialize} shouldn't be called neither.
 

-This function may be called several times but 
+This function may be called several times but

 \helpref{wxUninitialize}{wxuninitialize} must be called for each successful
 call to this function.
 
 \helpref{wxUninitialize}{wxuninitialize} must be called for each successful
 call to this function.
 


@@ -1831,7 +1878,7 @@ enum wxSignal
 \end{verbatim}
 
 {\tt wxSIGNONE}, {\tt wxSIGKILL} and {\tt wxSIGTERM} have the same meaning
 \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 
+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
 {\tt wxSIGTERM} under Windows.
 
 Returns 0 on success, -1 on failure. If {\it rc} parameter is not NULL, it will


@@ -2122,22 +2169,10 @@ See also \helpref{wxGetResource}{wxgetresource}, \helpref{wxConfigBase}{wxconfig
 
 \func{bool}{wxYield}{\void}
 
 
 \func{bool}{wxYield}{\void}
 

-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 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.
-Disabling menu items or whole menus during processing can avoid unwanted
-reentrance of code: see \helpref{::wxSafeYield}{wxsafeyield} for a better
-function.
+Calls \helpref{wxApp::Yield}{wxappyield}.

 
 

-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}.
+This function is kept only for backwards compatibility, please use the
+wxApp method instead in any new code.

 
 \wxheading{Include files}
 
 
 \wxheading{Include files}
 


@@ -2437,7 +2472,7 @@ avoid using {\tt \#ifdef}s when creating bitmaps.
 
 \membersection{wxConstCast}\label{wxconstcast}
 
 
 \membersection{wxConstCast}\label{wxconstcast}
 

-\func{}{wxConstCast}{ptr, classname}
+\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.
 
 This macro expands into {\tt const\_cast<classname *>(ptr)} if the compiler
 supports {\it const\_cast} or into an old, C-style cast, otherwise.


@@ -2466,14 +2501,15 @@ In non-debug mode, this is defined as the normal new operator.
 
 \membersection{wxDynamicCast}\label{wxdynamiccast}
 
 
 \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
 
 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 preferred 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:
 
 
 Example:
 


@@ -2493,9 +2529,23 @@ Example:
 \wxheading{See also}
 
 \helpref{RTTI overview}{runtimeclassoverview}\\
 \wxheading{See also}
 
 \helpref{RTTI overview}{runtimeclassoverview}\\

+\helpref{wxDynamicCastThis}{wxdynamiccastthis}\\

 \helpref{wxConstCast}{wxconstcast}\\
 \helpref{wxStatiicCast}{wxstaticcast}
 
 \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}
 \membersection{wxICON}\label{wxiconmacro}
 
 \func{}{wxICON}{iconName}


@@ -2515,7 +2565,7 @@ avoid using {\tt \#ifdef}s when creating icons.
 
 \membersection{wxStaticCast}\label{wxstaticcast}
 
 
 \membersection{wxStaticCast}\label{wxstaticcast}
 

-\func{}{wxStaticCast}{ptr, classname}
+\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
 
 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