Hello,
Seems quite basic, but I need a **fast** way to know if a QImage is just
full transparent. I know the size in advance (256x256). If it were a
QPixmap I would use cacheKey() and compare with the cacheKey of a full
transparent image. For a QImage I can compare it with a preset
transparent image, or extract the alpha channel, or etc of course. But I
need a really fast way.
Any idea?
Thanks
Philippe.
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