El 19/01/2009, a las 21:20, Matt Smith escribió:
I want to be able to draw lines on an image, without modifying the
image. More specifically I want two images one with the lines and
then
the original image below it. Can somebody recommend some classes,
preferable I would like to use 2 QImages, but I don't know if I can
display one on top of the other.
You can draw a QImage on top of another with QPainter if it has alpha
channel. But anyway you will be drawing on one of them, so possibly
you need to create a third one with the result of the combination, if
you want to keep the two other intact.
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