"OpenClipboard failed" - is it bug or my fault?

[Pavel]

Sometimes, I cannot figure out why, when I try to do copy of shape, I get
this message. After that the wizard quit to work. For example, when I work
with database diagram then I cannot see database properties, cannot add
columns and so on. I'm able to close and save every my drawing, but not Visio
environment itself. It gives me some message that there is some breakpoint in
VBA, BUT....

I don't work with VBA at all.

If someone can help me to solve this.

 

[Michel LAPLANE]

I've already got this strange message "...breakpoint in VBA" when i was
debugging Addon in C++ and when i have stop the program in visual studio
without quiting visio. Perhaps because all the resources (sink event not
released for example).

 

[Pavel]

Thank you for responce, but I didn't understand exactly the answer. What
exactly do I have to do to solve this problem or at least realize what
happens exactly?

 

[Michel LAPLANE]

Check that when you leave your application all the ressources are released
especially those concerning event created by your own with add (see sdk help
for details). I hope it had help you