improve left down event handling for wxPopupTransientWindow
|Reported by:||jianliang79||Owned by:|
wxPopupTransientWindow will push an event handler which is wxPopupWindowHandler to the child window. when user left click outside of the popup window it will dismiss the the popup window and post this left down event to the window under the mouse pointer. But the current implementation post this event to the window's own handler instead of the handler got from wnd->GetEventHander() which prevent this event from being processed by the event handler pushed to this window. this patch fix this. it is patch against trunk.