is clear - the first corresponds to a key press and the second to a key
release - otherwise they are identical. Just note that if the key is
maintained in a pressed state you will typically get a lot of (automatically
-generated) down events but only up one so it is wrong to assume that there is
+generated) down events but only one up so it is wrong to assume that there is
one up event corresponding to each down one.
Both key events provide untranslated key codes while the char event carries
event key code is equal to {\tt ASCII A} $== 65$. But the char event key code
is {\tt ASCII a} $== 97$. On the other hand, if you press both {\sc Shift} and
{\tt 'A'} keys simultaneously , the key code in key down event will still be
-just {\tt 'A'} while the char event key code parameter will now be {\tt 'A'}
+just {\tt 'A'} while the char event key code parameter will now be {\tt 'A'}
as well.
Although in this simple case it is clear that the correct key code could be
-found in the key down event handler by checking the value returned by
-\helpref{ShiftDown()}{wxkeyeventshiftdown}, in general you should use
+found in the key down event handler by checking the value returned by
+\helpref{ShiftDown()}{wxkeyeventshiftdown}, in general you should use
{\tt EVT\_CHAR} for this as for non alphanumeric keys the translation is
keyboard-layout dependent and can only be done properly by the system itself.
running the \helpref{text}{sampletext} wxWindows 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
+the event handler does not call {\tt event.Skip()} then the coresponding
+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.
+
{\bf Note for Windows programmers:} The key and char events in wxWindows are
-similar to but slightly different from Windows {\tt WM\_KEYDOWN} and
+similar to but slightly different from Windows {\tt WM\_KEYDOWN} and
{\tt WM\_CHAR} events. In particular, Alt-x combination will generate a char
-event in wxWindows (unless it is used as an acclerator).
+event in wxWindows (unless it is used as an accelerator).
+
+{\bf Tip:} be sure to call {\tt event.Skip()} for events that you don't process in
+key event function, otherwise menu shortcuts may cease to work under Windows.
\wxheading{Derived from}
%\twocolitem{{\bf EVT\_CHAR\_HOOK(func)}}{Process a wxEVT\_CHAR\_HOOK event.}
\end{twocollist}%
-\wxheading{See also}
-
-\helpref{wxWindow::OnChar}{wxwindowonchar},
-\helpref{wxWindow::OnCharHook}{wxwindowoncharhook},
-\helpref{wxWindow::OnKeyDown}{wxwindowonkeydown},
-\helpref{wxWindow::OnKeyUp}{wxwindowonkeyup}
\latexignore{\rtfignore{\wxheading{Members}}}
while non-ASCII events return values such as {\bf WXK\_LEFT} for the
left cursor key. See \helpref{Keycodes}{keycodes} for a full list of the virtual key codes.
+\membersection{wxKeyEvent::GetRawKeyCode}
+
+\constfunc{wxUint32}{GetRawKeyCode}{\void}
+
+Returns the raw key code for this event. This is a platform-dependent scan code
+which should only be used in advanced applications.
+
+{\bf NB:} Currently the raw key codes are not supported by all ports, use
+{\tt\#ifdef wxHAS\_RAW\_KEY\_CODES} to determine if this feature is available.
+
+\membersection{wxKeyEvent::GetRawKeyFlags}
+
+\constfunc{wxUint32}{GetRawKeyFlags}{\void}
+
+Returns the low level key flags for this event. The flags are
+platform-dependent and should only be used in advanced applications.
+
+{\bf NB:} Currently the raw key flags are not supported by all ports, use
+{\tt \#ifdef wxHAS\_RAW\_KEY\_CODES} to determine if this feature is available.
+
\membersection{wxKeyEvent::GetX}
\constfunc{long}{GetX}{\void}
Returns TRUE if either {\sc Ctrl} or {\sc Alt} keys was down
at the time of the key event. Note that this function does not take into
account neither {\sc Shift} nor {\sc Meta} key states (the reason for ignoring
-the latter is that it is common for {\sc NumLock} key to be configured as
+the latter is that it is common for {\sc NumLock} key to be configured as
{\sc Meta} under X but the key presses even while {\sc NumLock} is on should
be still processed normally).
Returns TRUE if the shift key was down at the time of the key event.
-
projects / wxWidgets.git / blobdiff