Ensure QImage is ARGB32 before converting to numpy (#618)

pyapp-kit · Dec 6, 2023 · 9d61830 · 9d61830
1 parent 33c5e60
commit 9d61830
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/magicgui/backends/_qtpy/widgets.py b/src/magicgui/backends/_qtpy/widgets.py
@@ -181,6 +181,8 @@ def _mgui_render(self) -> numpy.ndarray:
             ) from None
 
         img = self._qwidget.grab().toImage()
+        if img.format() != QImage.Format_ARGB32:
+            img = img.convertToFormat(QImage.Format_ARGB32)
         bits = img.constBits()
         h, w, c = img.height(), img.width(), 4
         if qtpy.API_NAME.startswith("PySide"):