File gtk3-x11-set-transparent-background.patch of Package gtk3.15354

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File gtk3-x11-set-transparent-background.patch of Package gtk3.15354

From 2ce63a86ba689aa41eb47409c889c469497478b0 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Fri, 4 May 2018 11:26:15 +0200
Subject: [PATCH] x11: Set a transparent background on windows by default

This avoids black flicker on compositing WMs when a window is first shown.
---
 gdk/x11/gdkwindow-x11.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gdk/x11/gdkwindow-x11.c b/gdk/x11/gdkwindow-x11.c
index 70daed9b6d..e484b58253 100644
--- a/gdk/x11/gdkwindow-x11.c
+++ b/gdk/x11/gdkwindow-x11.c
@@ -1147,6 +1147,9 @@ _gdk_x11_display_create_window_impl (GdkDisplay    *display,
   if (attributes_mask & GDK_WA_TYPE_HINT)
     gdk_window_set_type_hint (window, attributes->type_hint);
 
+  if (!window->input_only)
+    gdk_window_x11_set_background (window, NULL);
+
   gdk_x11_event_source_select_events ((GdkEventSource *) display_x11->event_source,
                                       GDK_WINDOW_XID (window), event_mask,
                                       StructureNotifyMask | PropertyChangeMask);
-- 
2.20.1

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File gtk3-x11-set-transparent-background.patch of Package gtk3.15354

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