X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bf188f1add12abe2238d51d0568acc2a386e8051..e9c0df38e7bdf9dcc527833c6ed7ae30155c24cc:/docs/latex/wx/app.tex?ds=sidebyside

diff --git a/docs/latex/wx/app.tex b/docs/latex/wx/app.tex
index 4ccfd04f3b..4908d31e6f 100644
--- a/docs/latex/wx/app.tex
+++ b/docs/latex/wx/app.tex
@@ -85,6 +85,17 @@ This can be used for programming event loops, e.g.
 
 \helpref{wxApp::Pending}{wxapppending}
 
+\membersection{wxApp::FilterEvent}\label{wxappfilterevent}
+
+\func{int}{FilterEvent}{\param{wxEvent\& }{event}}
+
+This function is called before processing any event and allows the application
+to preempt the processing of some events. If this method returns $-1$ the event
+is processed normally, otherwise either {\tt true} or {\tt false} should be
+returned and the event processing stops immediately considering that the event
+had been already processed (for the former return value) or that it is not
+going to be processed at all (for the latter one).
+
 \membersection{wxApp::GetAppName}\label{wxappgetappname}
 
 \constfunc{wxString}{GetAppName}{\void}
@@ -100,7 +111,7 @@ calling \helpref{wxApp::OnInit}{wxapponinit}, but the application can reset it a
 
 \constfunc{bool}{GetAuto3D}{\void}
 
-Returns TRUE if 3D control mode is on, FALSE otherwise.
+Returns true if 3D control mode is on, false otherwise.
 
 \wxheading{See also}
 
@@ -119,14 +130,15 @@ manner to refer to the application.
 
 \membersection{wxApp::GetExitOnFrameDelete}\label{wxappgetexitonframedelete}
 
-\constfunc{bool}{GetExitFrameOnDelete}{\void}
+\constfunc{bool}{GetExitOnFrameDelete}{\void}
 
-Returns TRUE if the application will exit when the top-level window is deleted, FALSE
+Returns true if the application will exit when the top-level window is deleted, false
 otherwise.
 
 \wxheading{See also}
 
-\helpref{wxApp::SetExitOnFrameDelete}{wxappsetexitonframedelete}
+\helpref{wxApp::SetExitOnFrameDelete}{wxappsetexitonframedelete},\\
+\helpref{wxApp shutdown overview}{wxappshutdownoverview}
 
 \membersection{wxApp::GetTopWindow}\label{wxappgettopwindow}
 
@@ -147,8 +159,8 @@ function will find the first top-level window (frame or dialog) and return that.
 
 \constfunc{bool}{GetUseBestVisual}{\void}
 
-Returns TRUE if the application will use the best visual on systems that support
-different visuals, FALSE otherwise.
+Returns true if the application will use the best visual on systems that support
+different visuals, false otherwise.
 
 \wxheading{See also}
 
@@ -172,7 +184,7 @@ the top window.
 
 \func{bool}{Initialized}{\void}
 
-Returns TRUE if the application has been initialized (i.e. if\rtfsp
+Returns true if the application has been initialized (i.e. if\rtfsp
 \helpref{wxApp::OnInit}{wxapponinit} has returned successfully).  This can be useful for error
 message routines to determine which method of output is best for the
 current state of the program (some windowing systems may not like
@@ -189,46 +201,75 @@ to provide your own (environment-dependent) main loop.
 
 Returns 0 under X, and the wParam of the WM\_QUIT message under Windows.
 
-\membersection{wxApp::OnActivate}\label{wxapponactivate}
-
-\func{void}{OnActivate}{\param{wxActivateEvent\& }{event}}
-
-Provide this member function to know whether the application is being
-activated or deactivated (Windows only).
-
-\wxheading{See also}
-
-\helpref{wxWindow::OnActivate}{wxwindowonactivate}, \helpref{wxActivateEvent}{wxactivateevent}
-
-\membersection{wxApp::OnExit}\label{wxapponexit}
-
-\func{int}{OnExit}{\void}
+%% VZ: OnXXX() functions should *not* be documented
+%%
+%%\membersection{wxApp::OnActivate}\label{wxapponactivate}
+%%
+%%\func{void}{OnActivate}{\param{wxActivateEvent\& }{event}}
+%%
+%%Provide this member function to know whether the application is being
+%%activated or deactivated (Windows only).
+%%
+%%\wxheading{See also}
+%%
+%%\helpref{wxWindow::OnActivate}{wxwindowonactivate}, \helpref{wxActivateEvent}{wxactivateevent}
+%%
+%%\membersection{wxApp::OnCharHook}\label{wxapponcharhook}
+%%
+%%\func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
+%%
+%%This event handler function is called (under Windows only) to allow the window to intercept keyboard events
+%%before they are processed by child windows.
+%%
+%%\wxheading{Parameters}
+%%
+%%\docparam{event}{The keypress event.}
+%%
+%%\wxheading{Remarks}
+%%
+%%Use the wxEVT\_CHAR\_HOOK macro in your event table.
+%%
+%%If you use this member, you can selectively consume keypress events by calling\rtfsp
+%%\helpref{wxEvent::Skip}{wxeventskip} for characters the application is not interested in.
+%%
+%%\wxheading{See also}
+%%
+%%\helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnChar}{wxwindowonchar},\rtfsp
+%%\helpref{wxWindow::OnCharHook}{wxwindowoncharhook}, \helpref{wxDialog::OnCharHook}{wxdialogoncharhook}
 
-Provide this member function for any processing which needs to be done as
-the application is about to exit.
+\membersection{wxApp::OnAssert}\label{wxapponassert}
 
-\membersection{wxApp::OnCharHook}\label{wxapponcharhook}
+\func{void}{OnAssert}{\param{const wxChar }{*file}, \param{int }{line}, \param{const wxChar }{*cond}, \param{const wxChar }{*msg}}
 
-\func{void}{OnCharHook}{\param{wxKeyEvent\&}{ event}}
+This function is called when an assert failure occurs, i.e. the condition
+specified in \helpref{wxASSERT}{wxassert} macro evaluated to {\tt false}.
+It is only called in debug mode (when {\tt \_\_WXDEBUG\_\_} is defined) as
+asserts are not left in the release code at all.
 
-This event handler function is called (under Windows only) to allow the window to intercept keyboard events
-before they are processed by child windows.
+The base class version show the default assert failure dialog box proposing to
+the user to stop the program, continue or ignore all subsequent asserts.
 
 \wxheading{Parameters}
 
-\docparam{event}{The keypress event.}
+\docparam{file}{the name of the source file where the assert occured}
 
-\wxheading{Remarks}
+\docparam{line}{the line number in this file where the assert occured}
 
-Use the wxEVT\_CHAR\_HOOK macro in your event table.
+\docparam{cond}{the condition of the failed assert in string form}
 
-If you use this member, you can selectively consume keypress events by calling\rtfsp
-\helpref{wxEvent::Skip}{wxeventskip} for characters the application is not interested in.
+\docparam{msg}{the message specified as argument to 
+\helpref{wxASSERT\_MSG}{wxassertmsg} or \helpref{wxFAIL\_MSG}{wxfailmsg}, will
+be {\tt NULL} if just \helpref{wxASSERT}{wxassert} or \helpref{wxFAIL}{wxfail} 
+was used}
 
-\wxheading{See also}
+\membersection{wxApp::OnExit}\label{wxapponexit}
 
-\helpref{wxKeyEvent}{wxkeyevent}, \helpref{wxWindow::OnChar}{wxwindowonchar},\rtfsp
-\helpref{wxWindow::OnCharHook}{wxwindowoncharhook}, \helpref{wxDialog::OnCharHook}{wxdialogoncharhook}
+\func{int}{OnExit}{\void}
+
+Provide this member function for any processing which needs to be
+done as the application is about to exit. OnExit is called after
+destroying all application windows and controls, but before
+wxWindows cleanup.
 
 \membersection{wxApp::OnCmdLineError}\label{wxapponcmdlineerror}
 
@@ -238,8 +279,8 @@ Called when command line parsing fails (i.e. an incorrect command line option
 was specified by the user). The default behaviour is to show the program usage
 text and abort the program.
 
-Return {\tt TRUE} to continue normal execution or {\tt FALSE} to return 
-{\tt FALSE} from \helpref{OnInit}{wxapponinit} thus terminating the program.
+Return {\tt true} to continue normal execution or {\tt false} to return 
+{\tt false} from \helpref{OnInit}{wxapponinit} thus terminating the program.
 
 \wxheading{See also}
 
@@ -252,8 +293,8 @@ Return {\tt TRUE} to continue normal execution or {\tt FALSE} to return
 Called when the help option ({\tt --help}) was specified on the command line.
 The default behaviour is to show the program usage text and abort the program.
 
-Return {\tt TRUE} to continue normal execution or {\tt FALSE} to return 
-{\tt FALSE} from \helpref{OnInit}{wxapponinit} thus terminating the program.
+Return {\tt true} to continue normal execution or {\tt false} to return 
+{\tt false} from \helpref{OnInit}{wxapponinit} thus terminating the program.
 
 \wxheading{See also}
 
@@ -270,8 +311,8 @@ set from the command line.
 Don't forget to call the base class version unless you want to suppress
 processing of the standard command line options.
 
-Return {\tt TRUE} to continue normal execution or {\tt FALSE} to return 
-{\tt FALSE} from \helpref{OnInit}{wxapponinit} thus terminating the program.
+Return {\tt true} to continue normal execution or {\tt false} to return 
+{\tt false} from \helpref{OnInit}{wxapponinit} thus terminating the program.
 
 \wxheading{See also}
 
@@ -309,7 +350,7 @@ work and, in fact, probably won't.
 %%application have all been processed, wxWindows sends an OnIdle event to the application object. wxApp::OnIdle itself
 %%sends an OnIdle event to each application window, allowing windows to do idle processing such as updating
 %%their appearance. If either wxApp::OnIdle or a window OnIdle function requested more time, by
-%%caling \helpref{wxIdleEvent::RequestMore}{wxidleeventrequestmore}, wxWindows will send another OnIdle
+%%calling \helpref{wxIdleEvent::RequestMore}{wxidleeventrequestmore}, wxWindows will send another OnIdle
 %%event to the application object. This will occur in a loop until either a user event is found to be
 %%pending, or OnIdle requests no more time. Then all pending user events are processed until the system
 %%goes idle again, when OnIdle is called, and so on.
@@ -329,7 +370,7 @@ work and, in fact, probably won't.
 %%
 %%Use the EVT\_END\_SESSION event table macro to handle query end session events.
 %%
-%%The default handler calls \helpref{wxWindow::Close}{wxwindowclose} with a TRUE argument
+%%The default handler calls \helpref{wxWindow::Close}{wxwindowclose} with a true argument
 %%(forcing the application to close itself silently).
 %%
 %%\wxheading{Remarks}
@@ -357,7 +398,7 @@ Notice that if you want to to use the command line processing provided by
 wxWindows you have to call the base class version in the derived class
 OnInit().
 
-Return TRUE to continue processing, FALSE to exit the application.
+Return true to continue processing, false to exit the application.
 
 \membersection{wxApp::OnInitCmdLine}\label{wxapponinitcmdline}
 
@@ -375,7 +416,7 @@ This is an event handler function called when the operating system or GUI sessio
 about to close down. Typically, an application will try to save unsaved documents
 at this point.
 
-If \helpref{wxCloseEvent::CanVeto}{wxcloseeventcanveto} returns TRUE, the application
+If \helpref{wxCloseEvent::CanVeto}{wxcloseeventcanveto} returns true, the application
 is allowed to veto the shutdown by calling \helpref{wxCloseEvent::Veto}{wxcloseeventveto}.
 The application might veto the shutdown after prompting for documents to be saved, and the
 user has cancelled the save.
@@ -383,12 +424,12 @@ user has cancelled the save.
 Use the EVT\_QUERY\_END\_SESSION event table macro to handle query end session events.
 
 You should check whether the application is forcing the deletion of the window
-using \helpref{wxCloseEvent::GetForce}{wxcloseeventgetforce}. If this is TRUE,
+using \helpref{wxCloseEvent::GetForce}{wxcloseeventgetforce}. If this is true,
 destroy the window using \helpref{wxWindow::Destroy}{wxwindowdestroy}.
 If not, it is up to you whether you respond by destroying the window.
 
 The default handler calls \helpref{wxWindow::Close}{wxwindowclose} on the top-level window,
-and vetoes the shutdown if Close returns FALSE. This will be sufficient for many applications.
+and vetoes the shutdown if Close returns false. This will be sufficient for many applications.
 
 \wxheading{Remarks}
 
@@ -399,29 +440,29 @@ Under Windows, OnQueryEndSession is called in response to the WM\_QUERYENDSESSIO
 \wxheading{See also}
 
 \helpref{wxWindow::Close}{wxwindowclose},\rtfsp
-\helpref{wxWindow::OnCloseWindow}{wxwindowonclosewindow},\rtfsp
-\helpref{wxCloseEvent}{wxcloseevent},\rtfsp
-\helpref{wxApp::OnEndSession}{wxapponendsession}
+\helpref{wxCloseEvent}{wxcloseevent}
+%% GD: OnXXX functions are not documented
+%%\helpref{wxApp::OnEndSession}{wxapponendsession}
 
 \membersection{wxApp::ProcessMessage}\label{wxappprocessmessage}
 
-\func{bool}{ProcessMessage}{\param{MSG *}{msg}}
+\func{bool}{ProcessMessage}{\param{WXMSG *}{msg}}
 
 Windows-only function for processing a message. This function
 is called from the main message loop, checking for windows that
-may wish to process it. The function returns TRUE if the message
-was processed, FALSE otherwise. If you use wxWindows with another class
+may wish to process it. The function returns true if the message
+was processed, false otherwise. If you use wxWindows with another class
 library with its own message loop, you should make sure that this
 function is called to allow wxWindows to receive messages. For example,
-to allow co-existance with the Microsoft Foundation Classes, override
+to allow co-existence with the Microsoft Foundation Classes, override
 the PreTranslateMessage function:
 
 \begin{verbatim}
 // Provide wxWindows message loop compatibility
 BOOL CTheApp::PreTranslateMessage(MSG *msg)
 {
-  if (wxTheApp && wxTheApp->ProcessMessage(msg))
-    return TRUE;
+  if (wxTheApp && wxTheApp->ProcessMessage((WXMSW *)msg))
+    return true;
   else
     return CWinApp::PreTranslateMessage(msg);
 }
@@ -431,7 +472,7 @@ BOOL CTheApp::PreTranslateMessage(MSG *msg)
 
 \func{bool}{Pending}{\void}
 
-Returns TRUE if unprocessed events are in the window system event queue.
+Returns true if unprocessed events are in the window system event queue.
 
 \wxheading{See also}
 
@@ -450,11 +491,13 @@ Sends idle events to a window and its children.
 \wxheading{Remarks}
 
 These functions poll the top-level windows, and their children, for idle event processing.
-If TRUE is returned, more OnIdle processing is requested by one or more window.
+If true is returned, more OnIdle processing is requested by one or more window.
 
 \wxheading{See also}
 
-\helpref{wxApp::OnIdle}{wxapponidle}, \helpref{wxWindow::OnIdle}{wxwindowonidle}, \helpref{wxIdleEvent}{wxidleevent}
+%% GD: OnXXX functions are not documented
+%%\helpref{wxApp::OnIdle}{wxapponidle}
+\helpref{wxIdleEvent}{wxidleevent}
 
 \membersection{wxApp::SetAppName}\label{wxappsetappname}
 
@@ -476,8 +519,8 @@ Switches automatic 3D controls on or off.
 
 \wxheading{Parameters}
 
-\docparam{auto3D}{If TRUE, all controls will be created with 3D appearances unless
-overridden for a control or dialog. The default is TRUE}
+\docparam{auto3D}{If true, all controls will be created with 3D appearances unless
+overridden for a control or dialog. The default is true}
 
 \wxheading{Remarks}
 
@@ -507,8 +550,13 @@ top-level frame is deleted.
 
 \wxheading{Parameters}
 
-\docparam{flag}{If TRUE (the default), the application will exit when the top-level frame is
-deleted. If FALSE, the application will continue to run.}
+\docparam{flag}{If true (the default), the application will exit when the top-level frame is
+deleted. If false, the application will continue to run.}
+
+\wxheading{See also}
+
+\helpref{wxApp::GetExitOnFrameDelete}{wxappgetexitonframedelete},\\
+\helpref{wxApp shutdown overview}{wxappshutdownoverview}
 
 \membersection{wxApp::SetTopWindow}\label{wxappsettopwindow}
 
@@ -542,20 +590,6 @@ wxWindows.
 
 \helpref{wxApp::GetVendorName}{wxappgetvendorname}
 
-\membersection{wxApp::GetStdIcon}\label{wxappgetstdicon}
-
-\func{virtual wxIcon}{GetStdIcon}{\param{int }{which}} const
-
-Returns the icons used by wxWindows internally, e.g. the ones used for 
-message boxes.  This function is used internally and 
-can be overridden by the user to change the default icons.
-
-\wxheading{Parameters}
-
-\docparam{which}{One of the wxICON\_XXX specifies which icon to return.}
-
-See \helpref{wxMessageBox}{wxmessagebox} for a list of icon identifiers.
-
 \membersection{wxApp::SetUseBestVisual}\label{wxappsetusebestvisual}
 
 \func{void}{SetUseBestVisual}{\param{bool}{ flag}}
@@ -563,7 +597,7 @@ See \helpref{wxMessageBox}{wxmessagebox} for a list of icon identifiers.
 Allows the programmer to specify whether the application will use the best visual
 on systems that support several visual on the same display. This is typically the
 case under Solaris and IRIX, where the default visual is only 8-bit whereas certain
-appications are supposed to run in TrueColour mode.
+applications are supposed to run in TrueColour mode.
 
 Note that this function has to be called in the constructor of the {\tt wxApp} 
 instance and won't have any effect when called later on.
@@ -572,5 +606,31 @@ This function currently only has effect under GTK.
 
 \wxheading{Parameters}
 
-\docparam{flag}{If TRUE, the app will use the best visual.}
+\docparam{flag}{If true, the app will use the best visual.}
+
+\membersection{wxApp::Yield}\label{wxappyield}
+
+\func{bool}{Yield}{\param{bool}{ onlyIfNeeded = false}}
+
+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.
+
+Note that Yield() will not flush the message logs. This is intentional as
+calling Yield() 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}.
+
+Calling Yield() recursively is normally an error and an assert failure is
+raised in debug build if such situation is detected. However if the the 
+{\it onlyIfNeeded} parameter is {\tt true}, the method will just silently
+return {\tt false} instead.
 
