Yes :
Overload QLabel class, reimplement mouseWheel event handler and do some image-processing-code based on your initial picture, the area of the picture currently displayed, the QLabel size and QCursor::pos(), and you got it.
Yes :
Overload QLabel class, reimplement mouseWheel event handler and do some image-processing-code based on your initial picture, the area of the picture currently displayed, the QLabel size and QCursor::pos(), and you got it.
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