[Qt-interest] auto cancelling interaction when a dialog is shown (WM_CANCELMODE equivalent)?

[Ross Bencina]

Hi Guys

I need to cancel interaction when I'm manipulating a custom widget and a 
dialog box is displayed (such as when the user hits Ctrl-N and the "Do you 
want to save?" message box is displayed while I'm manipulating a control 
with the left mouse button down).

The Qt Scroll Bar seems to cancel interaction when I hit a key to pop up a 
dialog while I'm dragging the scroll bar thumb, but my custom widgets get 
confused and never see a mouseRelease event.

On Win32 there's WM_CANCELMODE Notification for this purpose:
http://msdn.microsoft.com/en-us/library/ms632615(VS.85).aspx


Could someone please enlighten me as to what the equivalent event (or 
technique) is in Qt?

Thanks!

Ross.




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