patch 1306473

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

diff --git a/docs/latex/wx/keyevent.tex b/docs/latex/wx/keyevent.tex
index 7fbfa91e51db2e8313dd2e46e7e921f9eebd4cc4..01a3ac89f2ea959da03f2d51bd5bb0e80dfc774c 100644 (file)
--- a/docs/latex/wx/keyevent.tex
+++ b/docs/latex/wx/keyevent.tex
@@ -41,7 +41,7 @@ running the \helpref{text}{sampletext} wxWidgets sample and pressing some keys
 in any of the text controls shown in it.
 
 {\bf Note:} If a key down ({\tt EVT\_KEY\_DOWN}) event is caught and
 in any of the text controls shown in it.
 
 {\bf Note:} If a key down ({\tt EVT\_KEY\_DOWN}) event is caught and

-the event handler does not call {\tt event.Skip()} then the coresponding
+the event handler does not call {\tt event.Skip()} then the corresponding

 char event ({\tt EVT\_CHAR}) will not happen.  This is by design and
 enables the programs that handle both types of events to be a bit
 simpler.
 char event ({\tt EVT\_CHAR}) will not happen.  This is by design and
 enables the programs that handle both types of events to be a bit
 simpler.


@@ -83,6 +83,9 @@ functions that take a wxKeyEvent argument.
 
 \member{bool}{m\_altDown}
 
 
 \member{bool}{m\_altDown}
 

+\textbf{Deprecated: } Please use \helpref{GetModifiers}{wxkeyeventgetmodifiers}
+instead!
+

 true if the Alt key is pressed down.
 
 
 true if the Alt key is pressed down.
 
 


@@ -90,6 +93,9 @@ true if the Alt key is pressed down.
 
 \member{bool}{m\_controlDown}
 
 
 \member{bool}{m\_controlDown}
 

+\textbf{Deprecated: } Please use \helpref{GetModifiers}{wxkeyeventgetmodifiers}
+instead!
+

 true if control is pressed down.
 
 
 true if control is pressed down.
 
 


@@ -97,6 +103,9 @@ true if control is pressed down.
 
 \member{long}{m\_keyCode}
 
 
 \member{long}{m\_keyCode}
 

+\textbf{Deprecated: } Please use \helpref{GetKeyCode}{wxkeyeventgetkeycode}
+instead!
+

 Virtual keycode. See \helpref{Keycodes}{keycodes} for a list of identifiers.
 
 
 Virtual keycode. See \helpref{Keycodes}{keycodes} for a list of identifiers.
 
 


@@ -104,6 +113,9 @@ Virtual keycode. See \helpref{Keycodes}{keycodes} for a list of identifiers.
 
 \member{bool}{m\_metaDown}
 
 
 \member{bool}{m\_metaDown}
 

+\textbf{Deprecated: } Please use \helpref{GetModifiers}{wxkeyeventgetmodifiers}
+instead!
+

 true if the Meta key is pressed down.
 
 
 true if the Meta key is pressed down.
 
 


@@ -111,6 +123,9 @@ true if the Meta key is pressed down.
 
 \member{bool}{m\_shiftDown}
 
 
 \member{bool}{m\_shiftDown}
 

+\textbf{Deprecated: } Please use \helpref{GetModifiers}{wxkeyeventgetmodifiers}
+instead!
+

 true if shift is pressed down.
 
 
 true if shift is pressed down.
 
 


@@ -118,6 +133,8 @@ true if shift is pressed down.
 
 \member{int}{m\_x}
 
 
 \member{int}{m\_x}
 

+\textbf{Deprecated: } Please use \helpref{GetX}{wxkeyeventgetx} instead!
+

 X position of the event.
 
 
 X position of the event.
 
 


@@ -125,6 +142,8 @@ X position of the event.
 
 \member{int}{m\_y}
 
 
 \member{int}{m\_y}
 

+\textbf{Deprecated: } Please use \helpref{GetY}{wxkeyeventgety} instead!
+

 Y position of the event.
 
 
 Y position of the event.
 
 


@@ -141,18 +160,21 @@ Constructor. Currently, the only valid event types are wxEVT\_CHAR and wxEVT\_CH
 
 Returns true if the Alt key was down at the time of the key event.
 
 
 Returns true if the Alt key was down at the time of the key event.
 

+Notice that \helpref{GetModifiers}{wxkeyeventgetmodifiers} is easier to use
+correctly than this function so you should consider using it in new code.
+

 
 \membersection{wxKeyEvent::CmdDown}\label{wxkeyeventcmddown}
 
 \constfunc{bool}{CmdDown}{\void}
 
 
 \membersection{wxKeyEvent::CmdDown}\label{wxkeyeventcmddown}
 
 \constfunc{bool}{CmdDown}{\void}
 

-"Cmd" is a pseudo key which is the same as Control for PC and Unix platforms
-but the special "Apple" (a.k.a as "Command") key under Macs: it makes often
-sense to use it instead of, say, ControlDown() because Cmd key is used for the
-same thing under Mac as Ctrl elsewhere (but Ctrl still exists, just not used
-for this purpose under Mac). So for non-Mac platforms this is the same as 
-\helpref{ControlDown()}{wxkeyeventcontroldown} and under Mac this is the same
-as \helpref{MetaDown()}{wxkeyeventmetadown}.
+\textsc{Cmd} is a pseudo key which is the same as Control for PC and Unix
+platforms but the special \textsc{Apple} (a.k.a as \textsc{Command}) key under
+Macs: it makes often sense to use it instead of, say, ControlDown() because Cmd
+key is used for the same thing under Mac as Ctrl elsewhere (but Ctrl still
+exists, just not used for this purpose under Mac). So for non-Mac platforms
+this is the same as \helpref{ControlDown()}{wxkeyeventcontroldown} and under
+Mac this is the same as \helpref{MetaDown()}{wxkeyeventmetadown}.

 
 
 \membersection{wxKeyEvent::ControlDown}\label{wxkeyeventcontroldown}
 
 
 \membersection{wxKeyEvent::ControlDown}\label{wxkeyeventcontroldown}


@@ -161,6 +183,9 @@ as \helpref{MetaDown()}{wxkeyeventmetadown}.
 
 Returns true if the control key was down at the time of the key event.
 
 
 Returns true if the control key was down at the time of the key event.
 

+Notice that \helpref{GetModifiers}{wxkeyeventgetmodifiers} is easier to use
+correctly than this function so you should consider using it in new code.
+

 
 \membersection{wxKeyEvent::GetKeyCode}\label{wxkeyeventgetkeycode}
 
 
 \membersection{wxKeyEvent::GetKeyCode}\label{wxkeyeventgetkeycode}
 


@@ -177,6 +202,36 @@ charset. You can obtain the corresponding Unicode character using
 \helpref{GetUnicodeKey}{wxkeyeventgetunicodekey}.
 
 
 \helpref{GetUnicodeKey}{wxkeyeventgetunicodekey}.
 
 

+\membersection{wxKeyEvent::GetModifiers}\label{wxkeyeventgetmodifiers}
+
+\constfunc{int}{GetModifiers}{\void}
+
+Return the bitmask of modifier keys which were pressed when this event
+happened. See \helpref{key modifier constants}{keymodifiers} for the full list
+of modifiers.
+
+Notice that this function is easier to use correctly than, for example, 
+\helpref{ControlDown}{wxkeyeventcontroldown} because when using the latter you
+also have to remember to test that none of the other modifiers is pressed:
+
+\begin{verbatim}
+    if ( ControlDown() && !AltDown() && !ShiftDown() && !MetaDown() )
+        ... handle Ctrl-XXX ...
+\end{verbatim}
+
+and forgetting to do it can result in serious program bugs (e.g. program not
+working with European keyboard layout where \textsc{AltGr} key which is seen by
+the program as combination of \textsc{Ctrl} and \textsc{Alt} is used). On the
+other hand, you can simply write
+
+\begin{verbatim}
+    if ( GetModifiers() == wxMOD_CONTROL )
+        ... handle Ctrl-XXX ...
+\end{verbatim}
+
+with this function.
+
+

 \membersection{wxKeyEvent::GetPosition}\label{wxkeyeventgetposition}
 
 \constfunc{wxPoint}{GetPosition}{\void}
 \membersection{wxKeyEvent::GetPosition}\label{wxkeyeventgetposition}
 
 \constfunc{wxPoint}{GetPosition}{\void}


@@ -250,6 +305,9 @@ be still processed normally).
 
 Returns true if the Meta key was down at the time of the key event.
 
 
 Returns true if the Meta key was down at the time of the key event.
 

+Notice that \helpref{GetModifiers}{wxkeyeventgetmodifiers} is easier to use
+correctly than this function so you should consider using it in new code.
+

 
 \membersection{wxKeyEvent::ShiftDown}\label{wxkeyeventshiftdown}
 
 
 \membersection{wxKeyEvent::ShiftDown}\label{wxkeyeventshiftdown}
 


@@ -257,3 +315,6 @@ Returns true if the Meta key was down at the time of the key event.
 
 Returns true if the shift key was down at the time of the key event.
 
 
 Returns true if the shift key was down at the time of the key event.
 

+Notice that \helpref{GetModifiers}{wxkeyeventgetmodifiers} is easier to use
+correctly than this function so you should consider using it in new code.
+