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x11: Don't crash if a window is on an unmanaged screen

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_gdk_x11_display_screen_for_xrootwin() can return NULL. If so, return
NULL from gdk_x11_window_foreign_new_for_display().

https://bugzilla.gnome.org/show_bug.cgi?id=709716
This commit is contained in:
Benjamin Otte 2013-11-25 21:11:56 +01:00
parent d1414211bf
commit 1d2a070254
1 changed files with 2 additions and 0 deletions
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2
gdk/x11/gdkwindow-x11.c
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@ -1229,6 +1229,8 @@ gdk_x11_window_foreign_new_for_display (GdkDisplay *display,
XFree (children);
screen = _gdk_x11_display_screen_for_xrootwin (display, root);
if (screen == NULL)
return NULL;
win = _gdk_display_create_window (display);
win->impl = g_object_new (GDK_TYPE_WINDOW_IMPL_X11, NULL);