QClipboard corrupted image PySide6

[Wysciguvvka]

Hi, when pasting an image copied from Windows snipping tool into the application clipboard, returned image has some corrupted(?) pixels. However, when I paste an image from a copied file (i. e. jpg file) returned image is not corrupted.

Code:

        md = clipboard.mimeData()
        if md.hasImage():
            img = QImage(md.imageData())
            if not img.isNull():
                image = ImageQt.fromqimage(img)
                image.show()

Image copied from windows snipping tool (before pasting):

Image pasted from the clipboard into the app (With corrupted pixels(?)/visual bug(?)) (bottom left, red green and blue pixels):

(I can't even save that image because windows says it's corrupted).
What should I do to fix it?

[SGaist]

Hi,

What are you getting in your clipboard data exactly ? (Mime type, etc)

[Wysciguvvka]

@SGaist clipboard.mimeData().formats() returns application/x-qt-image

[SGaist]

On which version of Windows does it happen ?

[Wysciguvvka]

@SGaist said in QClipboard corrupted image PySide6:

On which version of Windows does it happen ?

Tested on Windows 10 Home 21H2 19044.1706 and Windows 10 Education 21H1 19043.1706

Also, sample code to run and test that issue
(For Windows: Snipping tool -> new -> select small screen fragment (for better visibility) -> ctrl+v into the application)

from PySide6 import QtGui
from PySide6.QtGui import QKeyEvent
from PySide6.QtWidgets import QApplication, QMainWindow, QWidget
from PIL import ImageQt


class TestWidget(QWidget):
   def __init__(self, parent=None, *args, **kwargs) -> None:
       super(TestWidget, self).__init__(parent=parent, *args, **kwargs)
       self.setFocus()

   def keyPressEvent(self, event: QKeyEvent) -> None:
       super().keyPressEvent(event)
       if event.matches(QtGui.QKeySequence.Paste):
           md = QApplication.clipboard().mimeData()
           if md.hasImage() and md.imageData():
               image = ImageQt.fromqimage(md.imageData())
               image.show()


class UI(QMainWindow):
   def __init__(self, *args, **kwargs) -> None:
       super(UI, self).__init__(*args, **kwargs)
       self.ui = TestWidget(self)
       self.setCentralWidget(self.ui)


if __name__ == "__main__":
   import sys
   app = QApplication(sys.argv)
   ui = UI()
   ui.show()
   sys.exit(app.exec())