--- a/Snapshot/SnapWidget.py Wed Apr 03 19:44:20 2019 +0200 +++ b/Snapshot/SnapWidget.py Thu Apr 04 19:56:43 2019 +0200 @@ -356,7 +356,7 @@ self.__snapshot = QPixmap(pixmap) self.__redisplay() - self.__modified = True + self.__modified = not pixmap.isNull() self.__updateCaption() def __updatePreview(self):