[Qt-interest] ASSERT: "qApp && qApp->thread() == QThread::currentThread"

[Wasilios Goutas]

Hi,

I'm new to QT and have a basic question.
I use the ACE framework and wrote some libs wich analyses files and send 
vektor informations wich I try to visualize using OpenGL inside QT.
The libraries contains so called tasks which creates diferent threads.
One of this threads inherits  from QGLWidget and implements the 
paintGL() function.

By now, I created the QApplication instance in the main thread, the 
QMainWindow and its GLWidget instances inside my visualization library 
wich sends OpenGL command in a separete worker thread.
This results in the assertion
ASSERT: "qApp && qApp->thread() == QThread::currentThread()" in file 
kernel/qapplication_win.cpp, line 902
when my paintGL() function is called.

Also when I instantiated the QMainWindow object in the main thread I get 
this assertion.
It seems to me, that the thread initializd the QApplication instance has 
also to be the thread with owns the instance of the used widgets.
Is this right?

bye
Wasili