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Catch Button DOWN events

Posted on 1997-05-08
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Last Modified: 2013-11-20
I would like to build a momentary button that activates when pressed
and stops when released.  Sound simple?  However, I can't seem to find
any way to catch the mouse down event within the button.  I've tried
subclassing the button and using the OnChildNotify and this got me
some events but not the button down ones.  Does anybody have an example
on doing this?  I've been all through the MSDN CD-ROM without luck.

Thanks,

Ken West
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Question by:Ken_West
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Accepted Solution

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syed_dgreat earned 200 total points
ID: 1301418
Try using this:-

Derive a new class from CButton and provide two handlers:-
OnLButtonDown and OnLButtonUp.

First, whenever you press down the button (OnLButtonDown),
do whatever you want (you said
activates when pressed on it right?).
Then later you would stop whenever OnLButtonUp event is detected, you will stop whatever is activated.
Remember also, subclass this dlgitem in your OnInitDialog.

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