Updates to event docs. (removed evthandler::default).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4644 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 1999-11-21 18:31:03 +00:00
parent 1cb6da2dda
commit 8a29359071
4 changed files with 90 additions and 26 deletions

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@ -32,6 +32,39 @@ Destructor. If the handler is part of a chain, the destructor will
unlink itself and restore the previous and next handlers so that they point to
each other.
\membersection{wxEvtHandler::AddPendingEvent}\label{wxevthandleraddpendingevent}
\func{virtual void}{AddPendingEvent}{\param{wxEvent\& }{event}}
Adds an event to be processed later. The function will return immediately and the
event will get processed in idle time using the \helpref{wxEvtHandler::ProcessEvent}{wxevthandlerprocessevent}
method.
\wxheading{Parameters}
\docparam{event}{Event to add to process queue.}
\wxheading{Remarks}
Note that this requires that the event has a fully implemented Clone()
methods so that the event can be duplicated and stored until later processing.
Not all events in wxWindows currently have a fully implemented Clone() method,
you may have to look at the source to verify this.
This methods automatically wakes up idle handling even if the underlying window
system is currently idle anyway and thus would not send any idle events. (Waking
up the idle handling is done calling \helpref{::wxWakeUpIdle}{wxwakeupidle}.)
This is also the method to call for inter-thread communication. When using
a multi-threading program, you will often have to inform the main GUI thread
about the status of other working threads and this has to be done using this
method - which also means that this method is thread safe by means of using
crtical sections where needed.
Furthermore, it may be noted that some ports of wxWindows will probably move
to using this method more and more in preference over calling ProcessEvent()
directly so as to avoid problems with reentrant code.
\membersection{wxEvtHandler::Connect}\label{wxevthandlerconnect}
\func{void}{Connect}{\param{int}{ id},
@ -65,24 +98,33 @@ is an alternative to the use of static event tables. See the 'dynamic' sample fo
(wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) MyFrame::OnQuit );
\end{verbatim}
\membersection{wxEvtHandler::Default}\label{wxevthandlerdefault}
\membersection{wxEvtHandler::Disconnect}\label{wxevthandlerdisconnect}
\func{virtual long}{Default}{\void}
\func{bool}{Disconnect}{\param{int}{ id},
\param{wxEventType }{eventType = wxEVT_NULL}, \param{wxObjectEventFunction}{ function = NULL},
\param{wxObject*}{ userData = NULL}}
Invokes default processing if this event handler is a window.
\func{bool}{Disconnect}{\param{int}{ id}, \param{int}{ lastId = -1},
\param{wxEventType }{eventType = wxEVT_NULL}, \param{wxObjectEventFunction}{ function = NULL},
\param{wxObject*}{ userData = NULL}}
\wxheading{Return value}
Disconnects the given function dynamically from the event handler, using the specified
parameters as search criteria and returning TRUE if a matching event handler has been
found and removed. This method can only disconnect from functions which have been added
using the \helpref{wxEvtHandler::Connect}{wxevthandlerconnect} method. There is no way
to disconnect from events used in the (static) event tables.
System dependent.
\wxheading{Parameters}
\wxheading{Remarks}
\docparam{id}{The identifier (or first of the identifier range) associated with the event handler function.}
A generic way of delegating processing to the default system behaviour. It calls a platform-dependent
default function, with parameters dependent on the event or message parameters
originally sent from the windowing system.
\docparam{lastId}{The second part of the identifier range associated with the event handler function.}
Normally the application should call a base member, such as \helpref{wxWindow::OnChar}{wxwindowonchar}, which itself
may call {\bf Default}.
\docparam{eventType}{The event type associated with this event handler.}
\docparam{function}{The event handler function.}
\docparam{userData}{Data to be associated with the event table entry.}
\membersection{wxEvtHandler::GetClientData}\label{wxevthandlergetclientdata}

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@ -862,7 +862,9 @@ Sets the translation (from the top left corner) for PostScript output. The defau
\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 drepated and the code no longer maintained. Use the \helpref{wxClipboard}{wxclipboard}
class instead.
\wxheading{Include files}
@ -1513,7 +1515,12 @@ sometime later - usually during the next even loop iteration.
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.
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}
@ -1711,6 +1718,21 @@ function.
<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}
These macros are defined in wxWindows.

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@ -173,7 +173,7 @@ events which will NOT get sent to the parent's event handler:
\twocolitem{\helpref{wxPaintEvent}{wxpaintevent}}{A paint event}
\twocolitem{\helpref{wxQueryLayoutInfoEvent}{wxquerylayoutinfoevent}}{Used to query layout information}
\twocolitem{\helpref{wxSizeEvent}{wxsizeevent}}{A size event}
\twocolitem{\helpref{wxScrollWinEvent}{wxscrollwinevent}}{An event, sent by a scrolled window, not a scroll bar.}
\twocolitem{\helpref{wxScrollWinEvent}{wxscrollwinevent}}{A scroll event sent by a scrolled window (not a scroll bar)}
\twocolitem{\helpref{wxSysColourChangedEvent}{wxsyscolourchangedevent}}{A system colour change event}
\twocolitem{\helpref{wxUpdateUIEvent}{wxupdateuievent}}{A user interface update event}
\end{twocollist}

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@ -223,7 +223,7 @@ implements the following methods:\par
\membersection{wxWindow::Close}\label{wxwindowclose}
\func{virtual bool}{Close}{\param{const bool}{ force = FALSE}}
\func{virtual bool}{Close}{\param{bool}{ force = FALSE}}
The purpose of this call is to provide a safer way of destroying a window than using
the {\it delete} operator.
@ -363,7 +363,7 @@ Destroys all children of a window. Called automatically by the destructor.
\membersection{wxWindow::DragAcceptFiles}\label{wxwindowdragacceptfiles}
\func{virtual void}{DragAcceptFiles}{\param{const bool}{ accept}}
\func{virtual void}{DragAcceptFiles}{\param{bool}{ accept}}
Enables or disables elibility for drop file events (OnDropFiles).
@ -382,7 +382,7 @@ Windows only.
\membersection{wxWindow::Enable}\label{wxwindowenable}
\func{virtual void}{Enable}{\param{const bool}{ enable}}
\func{virtual void}{Enable}{\param{bool}{ enable}}
Enable or disable the window for user input.
@ -714,7 +714,7 @@ implements the following methods:\par
\constfunc{virtual void}{GetTextExtent}{\param{const wxString\& }{string}, \param{int* }{x}, \param{int* }{y},
\param{int* }{descent = NULL}, \param{int* }{externalLeading = NULL},
\param{const wxFont* }{font = NULL}, \param{const bool}{ use16 = FALSE}}
\param{const wxFont* }{font = NULL}, \param{bool}{ use16 = FALSE}}
Gets the dimensions of the string as it would be drawn on the
window with the currently selected font.
@ -878,7 +878,7 @@ or frame).
\membersection{wxWindow::MakeModal}\label{wxwindowmakemodal}
\func{virtual void}{MakeModal}{\param{const bool }{flag}}
\func{virtual void}{MakeModal}{\param{bool }{flag}}
Disables all other windows in the application so that
the user can only interact with this window. (This function
@ -1616,7 +1616,7 @@ or frame).
\membersection{wxWindow::Refresh}\label{wxwindowrefresh}
\func{virtual void}{Refresh}{\param{const bool}{ eraseBackground = TRUE}, \param{const wxRect* }{rect
\func{virtual void}{Refresh}{\param{bool}{ eraseBackground = TRUE}, \param{const wxRect* }{rect
= NULL}}
Causes a message or event to be generated to repaint the
@ -1719,7 +1719,7 @@ Sets the accelerator table for this window. See \helpref{wxAcceleratorTable}{wxa
\membersection{wxWindow::SetAutoLayout}\label{wxwindowsetautolayout}
\func{void}{SetAutoLayout}{\param{const bool}{ autoLayout}}
\func{void}{SetAutoLayout}{\param{bool}{ autoLayout}}
Determines whether the \helpref{wxWindow::Layout}{wxwindowlayout} function will
be called automatically when the window is resized. Use in connection with
@ -1970,7 +1970,7 @@ Obsolete - use \helpref{wxDC::SetPalette}{wxdcsetpalette} instead.
\func{virtual void}{SetScrollbar}{\param{int }{orientation}, \param{int }{position},\rtfsp
\param{int }{thumbSize}, \param{int }{range},\rtfsp
\param{const bool }{refresh = TRUE}}
\param{bool }{refresh = TRUE}}
Sets the scrollbar properties of a built-in scrollbar.
@ -2019,7 +2019,7 @@ from your \helpref{wxWindow::OnSize}{wxwindowonsize} event handler function.
\begin{comment}
\membersection{wxWindow::SetScrollPage}\label{wxwindowsetscrollpage}
\func{virtual void}{SetScrollPage}{\param{int }{orientation}, \param{int }{pageSize}, \param{const bool }{refresh = TRUE}}
\func{virtual void}{SetScrollPage}{\param{int }{orientation}, \param{int }{pageSize}, \param{bool }{refresh = TRUE}}
Sets the page size of one of the built-in scrollbars.
@ -2057,7 +2057,7 @@ handling of pages and ranges.
\membersection{wxWindow::SetScrollPos}\label{wxwindowsetscrollpos}
\func{virtual void}{SetScrollPos}{\param{int }{orientation}, \param{int }{pos}, \param{const bool }{refresh = TRUE}}
\func{virtual void}{SetScrollPos}{\param{int }{orientation}, \param{int }{pos}, \param{bool }{refresh = TRUE}}
Sets the position of one of the built-in scrollbars.
@ -2084,7 +2084,7 @@ application to take note of scrollbar attributes and redraw contents accordingly
\begin{comment}
\membersection{wxWindow::SetScrollRange}\label{wxwindowsetscrollrange}
\func{virtual void}{SetScrollRange}{\param{int }{orientation}, \param{int }{range}, \param{const bool }{refresh = TRUE}}
\func{virtual void}{SetScrollRange}{\param{int }{orientation}, \param{int }{range}, \param{bool }{refresh = TRUE}}
Sets the range of one of the built-in scrollbars.
@ -2255,7 +2255,7 @@ create a new validator of this type.
\membersection{wxWindow::Show}\label{wxwindowshow}
\func{virtual bool}{Show}{\param{const bool}{ show}}
\func{virtual bool}{Show}{\param{bool}{ show}}
Shows or hides the window.