#49851

r=jkobal, a=brendan
Frame Windows should be owned by the passed in parent, not HWND_DESKTOP

widget/src/os2/nsFrameWindow.cpp

@@ -101,11 +101,17 @@ void nsFrameWindow::RealDoCreate( HWND hwndP, nsWindow *aParent,
 
    // Assume frames are toplevel.  Breaks if anyone tries to do MDI, which
    // is an extra bonus feature :-)
+   HWND hwndOwner;
+   if (hwndP) {
+      hwndOwner = hwndP;
+   } else {
+      hwndOwner = HWND_DESKTOP;
+   } /* endif */
    hwndFrame = WinCreateWindow( HWND_DESKTOP,
                                 WC_FRAME,
                                 0, 0,                  // text, style
                                 0, 0, 0, 0,            // position
-                                HWND_DESKTOP,
+                                hwndOwner,
                                 HWND_TOP,
                                 0,                     // ID
                                 &fcd, 0);