The QPixmap.isNull function in PySide2.QtGui returns a boolean value indicating whether the QPixmap object is null or empty. If the return value is True, it means that the QPixmap object does not contain any valid image data. If the return value is False, it means that the QPixmap contains valid image data and can be displayed or used for various graphical operations. This function is useful for checking the validity of a QPixmap before performing any operations on it.
Python QPixmap.isNull - 16 examples found. These are the top rated real world Python examples of PySide2.QtGui.QPixmap.isNull extracted from open source projects. You can rate examples to help us improve the quality of examples.