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From: Uwe Kotyczka on 28 May 2010 10:37
Using MATLAB 7 I am looking for an equivalent to the
WinAPI GetKeyState function.

I have a GUI window, i.e. a figure with some buttons
and some other controls on it. In the callback
function of one button I want to do some additional
stuff under some circumstances. However this option
should not be obvious - just for those users who
know about it.
My idea is to do the additional stuff only if the button
is double clicked or if the CTRL key is held down
when the button is pressed or something similar.
In case of programming Windows API I would use
GetKeyState in the message handler. So now I am
looking for something similar in MATLAB.
Trapping a double click seem to impossible in the
button's callback function since the callback is
started by the first mouse event, so

>> get(gcf,'selectiontype')

always return 'normal'. My next Idea is to evaluate the
key state of the CTRL key in the button's callback
function. Is that possible in MATLAB?
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