[Qt-interest] Redrawing to-from QPixmap

[Ender EREL]

- What does the size() function return? Is there a chance that you may 
be constructing an invalid pixmap as a result of invalid size?

- Is the painting to the pixmap done in another thread? It may be a 
syncronization issue.

- You may additionally try writing the pixmaps to incremental files in 
order to check if the problem occurs while painting to pixmap or while 
drawing the pixmap onto the widget.

These are the first things that come to my mind.

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Ender EREL