How to catch event onclick when user click on a PowerPoint VBA but

Hi all.

You can visit this link : http://www.vbforums.com/showthread.php?t=510375

Like that application, I try to show a PPT file within a form by using
FindWindow() and SetParent() Function of "user32.dll" by C#. I can catch
events such as: begin show, end show, next slide, next, previous, next
build... by build functions to handle that events (for a object of
Micorosoft.Office.Interop.PowerPoint.SlideShowWind ow) . It works ok. But if
slide has a VBA button (to run a marco or show animation ...) or has a video
clip and you need to click on it to play, I can not catch onlick event for
that object/shapes. I need to know what shape/object on slide is clicked when
slide is showing. It seem as PPT do not support that event? Please help me.

Thank you so much for your help.

Regards.

Bin.

Thanks Steve Rindsberg. But can you tell me how to do it with C#? My app open
a PPT file and show it. I have to loop all shapes in slide and add this
macro?Can you give me an example?

Thanks so much.

Regards,

Bin