flush xorg image cache?

[Christian Hoenig]

Hi,

[second try, this time with the right adress]

I'm working on an image viewer written in Qt. Now having alot of large scale 
images boosts xorgs memory footprint pretty much. As X caches the images, 
this is not a problem if it wouldn't be persistent after my program quits. 

Is there a way to ask xorg to flush its image cache? I thought, I heard of 
one, but I really cannot remember.

thanks!
take care, have fun
/christian

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