WM_CAPTURECHANGED
The
WM_CAPTURECHANGED message is sent to the window that is losing the mouse
capture.
WM_CAPTURECHANGED
hwndNewCapture = (HWND) lParam; // handle of window to gain mouse capture
Parameters
hwndNewCapture
Value of lParam.
Identifies the window that is gaining the mouse capture.
Return Values
An
application should return zero if it processes this message.
Remarks
A window
receives this message even if it calls ReleaseCapture itself. An application
should not attempt to set the mouse capture in response to this message.
When it
receives this message, a window should redraw itself, if necessary, to reflect
the new mouse-capture state.
See Also