middle button so a portable application should avoid relying on the events from
it.
-{\bf NB:} Note that under Windows mouse enter and leave events are not natively supported
+For the \texttt{wxEVT\_ENTER\_WINDOW} and \texttt{wxEVT\_LEAVE\_WINDOW} events
+purposes, the mouse is considered to be inside the window if it is in the
+window client area and not inside one of its children. In other words, the
+parent window receives \texttt{wxEVT\_LEAVE\_WINDOW} event not only when the
+mouse leaves the window entirely but also when it enters one of its children.
+
+{\bf NB:} Note that under Windows CE mouse enter and leave events are not natively supported
by the system but are generated by wxWidgets itself. This has several
drawbacks: the LEAVE\_WINDOW event might be received some time after the mouse
left the window and the state variables for it may have changed during this
\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
-\twocolitem{{\bf EVT\_LEFT\_DOWN(func)}}{Process a wxEVT\_LEFT\_DOWN event.}
+\twocolitem{{\bf EVT\_LEFT\_DOWN(func)}}{Process a wxEVT\_LEFT\_DOWN event. The
+handler of this event should normally call \helpref{event.Skip()}{wxeventskip} to
+allow the default processing to take place as otherwise the window under mouse
+wouldn't get the focus.}
\twocolitem{{\bf EVT\_LEFT\_UP(func)}}{Process a wxEVT\_LEFT\_UP event.}
\twocolitem{{\bf EVT\_LEFT\_DCLICK(func)}}{Process a wxEVT\_LEFT\_DCLICK event.}
\twocolitem{{\bf EVT\_MIDDLE\_DOWN(func)}}{Process a wxEVT\_MIDDLE\_DOWN event.}
\membersection{wxMouseEvent::wxMouseEvent}\label{wxmouseeventctor}
-\func{}{wxMouseEvent}{\param{WXTYPE}{ mouseEventType = 0}, \param{int}{ id = 0}}
+\func{}{wxMouseEvent}{\param{WXTYPE}{ mouseEventType = 0}}
Constructor. Valid event types are:
\begin{twocollist}\itemsep=0pt
\twocolitem{{\tt wxMOUSE\_BTN\_LEFT}}{check if left button was pressed}
-\twocolitem{{\tt wxMOUSE\_BTN\_MIDDLE}}{check if left button was pressed}
-\twocolitem{{\tt wxMOUSE\_BTN\_RIGHT}}{check if left button was pressed}
+\twocolitem{{\tt wxMOUSE\_BTN\_MIDDLE}}{check if middle button was pressed}
+\twocolitem{{\tt wxMOUSE\_BTN\_RIGHT}}{check if right button was pressed}
\twocolitem{{\tt wxMOUSE\_BTN\_ANY}}{check if any button was pressed}
\end{twocollist}
-\membersection{wxKeyEvent::CmdDown}\label{wxmouseeventcmddown}
+\membersection{wxMouseEvent::CmdDown}\label{wxmouseeventcmddown}
\constfunc{bool}{CmdDown}{\void}
Returns the physical mouse position in pixels.
+Note that if the mouse event has been artificially generated from a special
+keyboard combination (e.g. under Windows when the ``menu'' key is pressed), the
+returned position is \texttt{wxDefaultPosition}.
+
\membersection{wxMouseEvent::GetLogicalPosition}\label{wxmouseeventgetlogicalposition}
\constfunc{int}{GetWheelRotation}{\void}
Get wheel rotation, positive or negative indicates direction of
-rotation. Current devices all send an event when rotation is equal to
-+/-WheelDelta, but this allows for finer resolution devices to be
-created in the future. Because of this you shouldn't assume that one
-event is equal to 1 line or whatever, but you should be able to either
-do partial line scrolling or wait until +/-WheelDelta rotation values
-have been accumulated before scrolling.
+rotation. Current devices all send an event when rotation is at least
++/-WheelDelta, but finer resolution devices can be created in the future.
+Because of this you shouldn't assume that one event is equal to 1 line, but you
+should be able to either do partial line scrolling or wait until several
+events accumulate before scrolling.
\membersection{wxMouseEvent::GetWheelDelta}\label{wxmouseeventgetwheeldelta}
Returns true if the left mouse button is currently down, independent
of the current event type.
-Please notice that it is {\bf not} the same as
-\helpref{LeftDown}{wxmouseeventleftdown} which returns true if the left mouse
-button was just pressed. Rather, it describes the state of the mouse button
-before the event happened.
+Please notice that it is \emph{not} the same as
+\helpref{LeftDown}{wxmouseeventleftdown} which returns \true if the event was
+generated by the left mouse button being pressed. Rather, it simply describes
+the state of the left mouse button at the time when the event was generated
+(so while it will be true for a left click event, it can also be true for
+a right click if it happened while the left mouse button was pressed).
This event is usually used in the mouse event handlers which process "move
mouse" messages to determine whether the user is (still) dragging the mouse.
projects / wxWidgets.git / blobdiff