hi, i'm a new qt user and i want to modify the alpha of an entire image with a slider or even a stupid button just for see if it is working, but i don't know how to manipulate this alpha channel of the image..
I have an QImage object and i have putted in it a jpg image that has an alpha channel (image.hasAlphaChannel gives me true). but how to modify the alpha values?
i tried to work onto the "image.colorTable" but it gives me nothing back..

ps: i'm using the latest qt version and windows

thank you in advance!
waitin' for your replies!
Marco