[Interest] Key_Cancel on Macintosh

John Weeks john at wavemetrics.com
Tue Mar 20 18:20:17 CET 2012

On Windows, I can filter keypress events looking for Qt::Key_Cancel, which is generated by pressing Ctrl+Break.

The Macintosh equivalent is Cmd-period. As far as I can make out, the Cocoa system catches that key combination and sends some sort of cancel event instead of a key event.

My question: is there a way to catch this in Qt on Macintosh?

Background: my application runs user code (we have an internal programming language) and during user code we should be able to press cmd-period to stop the user code. We don't want a progress dialog, we just want to interrupt the user's code, which is running under our control, with many opportunities to check for key presses or some sort of event occurrence.


-John Weeks

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