Winid issue with Qt

[Pragya]

I am trying to integrate opencascade graphical library with QT , and i am failed to do so, because it ends up with run time error when i try to set the QT window ( for this i am using winid ) with the "view" of open cascade. I guess there is some problem with QWidget::winid( ) . I am using QT 4.2.2 open source , OS windows xp and Visual studio 2005.
Any suggestion or opinion is really welcome.
Thanks
Pragya

[wysota]

What kind of runtime error? Have you tried debugging?

[Pragya]

Ya i tried debugging, and it ends with Visual3d_definitonerror of open cascade. When i add a quick watch in my VC++ 8.0, winid value found to be unused.

[wysota]

What does the backtrace/callstack say? Find the last point of entry into your code.

[pdolbey]

I'm now pretty sure I understand what's going on here now. See my last post on

http://www.opencascade.org/org/forum/thread_10859/

Pete