Set DPI awareness for high DPI scaling on Windows

main.py

@@ -5165,6 +5165,18 @@ class ActionDialog(QtWidgets.QDialog):
         return {'type': self.type_combo.currentText(), 'params': params, 'image_refs': image_refs, 'logic': logic}
 
 if __name__ == '__main__':
+    # Set DPI awareness before creating QApplication to prevent access denied error
+    import os
+    if os.name == 'nt':  # Windows
+        try:
+            from PyQt6.QtCore import Qt
+            # Set high DPI scaling policy before creating QApplication
+            QtWidgets.QApplication.setHighDpiScaleFactorRoundingPolicy(Qt.HighDpiScaleFactorRoundingPolicy.PassThrough)
+            QtWidgets.QApplication.setAttribute(Qt.ApplicationAttribute.AA_EnableHighDpiScaling, True)
+            QtWidgets.QApplication.setAttribute(Qt.ApplicationAttribute.AA_UseHighDpiPixmaps, True)
+        except Exception as e:
+            logger.debug(f"DPI awareness setup failed: {e}")
+    
     app = QtWidgets.QApplication(sys.argv)
     win = MainWindow()
     win.show()

qt.conf

@@ -1,2 +1,5 @@
 [Platforms]
-WindowsArguments = dpiawareness=1
+WindowsArguments = dpiawareness=0
+
+[Platforms\windows]
+DpiAwareness = system