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  1. Qt
  2. QTBUG-126997

grabWindow() returns pixmap which is NULL on WSL

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    • Icon: Bug Bug
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    • None
    • 6.7.0
    • QPA: Wayland
    • Linux/Wayland

      On WSL, screen.grabWindow() returns a NULL pixmap. Here's the failing code in Python:

      from PySide6.QtWidgets import QApplication

screen = QApplication().primaryScreen()
print(screen.manufacturer())
print(screen.model())
print(screen.name())
print(screen.geometry())
print(screen.availableGeometry())
print(screen.virtualGeometry())
print(screen.orientation())
print(screen.depth())
print(screen.devicePixelRatio())
print(screen.grabWindow().isNull())

      Output:

      python bug.py 
weston
rdp
rdp-0
PySide6.QtCore.QRect(1680, 0, 1920, 1080)
PySide6.QtCore.QRect(1680, 0, 1920, 1080)
PySide6.QtCore.QRect(0, 0, 3600, 1080)
ScreenOrientation.LandscapeOrientation
32
1.0
True

      The same code works fine in Windows:

      Philips Consumer Electronics Company
273ELH
273ELH
PySide6.QtCore.QRect(0, 0, 1920, 1080)
PySide6.QtCore.QRect(0, 0, 1920, 1032)
PySide6.QtCore.QRect(-1680, 0, 3600, 1080)
ScreenOrientation.LandscapeOrientation
32
1.0
False

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              Created:
              Updated:
              Resolved:

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