Paint events are sent to widgets that need to update themselves, for instance when part of a widget is exposed because a covering widget was moved.
The event contains a
region() that needs to be updated, and a
rect() that is the bounding rectangle of that region. Both are provided because many widgets cannot make much use of
region() , and
rect() can be much faster than
Painting is clipped to
region() during the processing of a paint event. This clipping is performed by Qt’s paint system and is independent of any clipping that may be applied to a
QPainter used to draw on the paint device.
- class PySide6.QtGui.QPaintEvent(arg__1)¶
Returns the rectangle that needs to be updated.
Returns the region that needs to be updated.
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