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Qt-interest Archive, August 2006
Why QPainter::setWindow takes a QRect

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Since it is part of the view transform, it should accept a QRectF. From 
what I understand, the window is specified in logical coordinates. What 
if I want to set the QPainter.matric() to transform a given rectangle 
into the axis-aligned square (0,0)-(0.5,0.5), then I cannot set the 
window on this square: the minimum window I can do is (0,0)-(1,1) ?!?!

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