[Qt-interest] Any suggestion in QPixmap::loadFromData() ?

[hhocean]

Hello everyone:
I have a program that need change page frequestly. the simple code as follow
{
QPixmap pix;
pix = QPixmap::loadFromData(raw,size); // raw is a binary "PNG" data
mylabel.setPixmap(pix)
mylabel.show()
}
The program change page in every second and a page has more than 30
qpixmaps.


if i run this program in long time, i will observe VM size of this program
to increase in a period time.

Enviroment:
Qt : 4.6.2
Ubutun 9.10

I have no idea for this memory leak problem.
Anyone can give me a suggestion?

Thank you.
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