added the static function GetLabelText() to wxStaticText which was mentioned in the...

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

diff --git a/docs/latex/wx/tevent.tex b/docs/latex/wx/tevent.tex
index 1e4e37c13c289a007db7489e7a77463c49f81b51..c70048d0b98180f671ca5383bcae8d3d4a69e8b4 100644 (file)
--- a/docs/latex/wx/tevent.tex
+++ b/docs/latex/wx/tevent.tex
@@ -219,6 +219,30 @@ used by, the native controls in a dialog. In this case, a special event handler
 will have to be written that will override ProcessEvent() in order to pass
 all events (or any selection of them) to the parent window.
 
+
+\subsection{Events generated by the user vs programmatically generated events}\label{progevent}
+
+While generically \helpref{wxEvents}{wxevent} can be generated both by user
+actions (e.g. resize of a \helpref{wxWindow}{wxwindow}) and by calls to functions
+(e.g. \helpref{wxWindow::SetSize}{wxwindowsetsize}), wxWidgets controls
+normally send \helpref{wxCommandEvent}{wxcommandevent}-derived events only for
+the user-generated events. The only {\bf exceptions} to this rule are:
+
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxNotebook::AddPage}{wxnotebookaddpage}}{No event-free alternatives}
+\twocolitem{\helpref{wxNotebook::AdvanceSelection}{wxnotebookadvanceselection}}{No event-free alternatives}
+\twocolitem{\helpref{wxNotebook::DeletePage}{wxnotebookdeletepage}}{No event-free alternatives}
+\twocolitem{\helpref{wxNotebook::SetSelection}{wxnotebooksetselection}}{Use \helpref{wxNotebook::ChangeSelection}{wxnotebookchangeselection} instead, as \helpref{wxNotebook::SetSelection}{wxnotebooksetselection} is deprecated}
+\twocolitem{\helpref{wxTreeCtrl::Delete}{wxtreectrldelete}}{No event-free alternatives}
+\twocolitem{\helpref{wxTreeCtrl::DeleteAllItems}{wxtreectrldeleteallitems}}{No event-free alternatives}
+\twocolitem{\helpref{wxTreeCtrl::EditLabel}{wxtreectrleditlabel}}{No event-free alternatives}
+\twocolitem{All \helpref{wxTextCtrl}{wxtextctrl} methods}{\helpref{wxTextCtrl::ChangeValue}{wxtextctrlchangevalue} can be used instead
+of \helpref{wxTextCtrl::SetValue}{wxtextctrlsetvalue} but the other functions,
+such as \helpref{Replace}{wxtextctrlreplace} or \helpref{WriteText}{wxtextctrlwritetext} 
+don't have event-free equivalents}
+\end{twocollist}
+
+
 % VZ: it doesn't work like this, but just in case we ever reenable this
 %     behaviour, I leave it here
 %
@@ -244,7 +268,8 @@ defining the appropriate event table, and then call
 \rtfsp\helpref{wxWindow::SetEventHandler}{wxwindowseteventhandler} (or, preferably,
 \rtfsp\helpref{wxWindow::PushEventHandler}{wxwindowpusheventhandler}) to make this
 event handler the object that responds to events. This way, you can avoid
-a lot of class derivation, and use the same event handler object to
+a lot of class derivation, and use the same event handler class (but different
+objects as the same event handler object shouldn't be used more than once) to
 handle events from instances of different classes. If you ever have to call a window's event handler
 manually, use the GetEventHandler function to retrieve the window's event handler and use that
 to call the member function. By default, GetEventHandler returns a pointer to the window itself
@@ -416,16 +441,21 @@ and this is done using the following macros:
 
 \begin{verbatim}
 // in the header of the source file
+BEGIN_DECLARE_EVENT_TYPES()
 DECLARE_EVENT_TYPE(name, value)
+END_DECLARE_EVENT_TYPES()
 
 // in the implementation
 DEFINE_EVENT_TYPE(name)
 \end{verbatim}
 
 You can ignore the {\it value} parameter of the DECLARE\_EVENT\_TYPE macro
-since it used only for backwards compatibility with wxWidgets 2.0.x based
+since it is used only for backwards compatibility with wxWidgets 2.0.x based
 applications where you have to give the event type ID an explicit value.
 
+See also the \helpref{event sample}{sampleevent} for an example of code
+defining and working with the custom event types.
+
 \wxheading{Using existing event classes}
 
 If you just want to use a \helpref{wxCommandEvent}{wxcommandevent} with
@@ -484,9 +514,9 @@ but responds to a range of window identifiers.}
 expects a member function with a wxCommandEvent argument.}
 \twocolitem{\windowstyle{EVT\_COMMAND\_RANGE(id1, id2, event, func)}}{The same as EVT\_CUSTOM\_RANGE, but
 expects a member function with a wxCommandEvent argument.}
-\twocolitem{\windowstyle{EVT\_NOTIFY(id, event, func)}}{The same as EVT\_CUSTOM, but
+\twocolitem{\windowstyle{EVT\_NOTIFY(event, id, func)}}{The same as EVT\_CUSTOM, but
 expects a member function with a wxNotifyEvent argument.}
-\twocolitem{\windowstyle{EVT\_NOTIFY\_RANGE(id1, id2, event, func)}}{The same as EVT\_CUSTOM\_RANGE, but
+\twocolitem{\windowstyle{EVT\_NOTIFY\_RANGE(event, id1, id2, func)}}{The same as EVT\_CUSTOM\_RANGE, but
 expects a member function with a wxNotifyEvent argument.}
 \end{twocollist}
 
@@ -497,9 +527,7 @@ Under certain circumstances, it will be required to define your own event
 class e.g. for sending more complex data from one place to another. Apart
 from defining your event class, you will also need to define your own
 event table macro (which is quite long). Watch out to put in enough
-casts to the inherited event function. Here is an example, taken mostly
-from the {\it wxPlot} library, which is in the {\it contrib} section of
-the wxWidgets sources.
+casts to the inherited event function. Here is an example:
 
 {\small%
 \begin{verbatim}