From 44f405b5460f6163e8772095de9a64082b76f075 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Fri, 3 Feb 2017 19:58:12 +0100
Subject: Remove background flickering on window resize.

---
 plugingui/nativewindow_x11.cc | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'plugingui/nativewindow_x11.cc')

diff --git a/plugingui/nativewindow_x11.cc b/plugingui/nativewindow_x11.cc
index 353a371..5bb6474 100644
--- a/plugingui/nativewindow_x11.cc
+++ b/plugingui/nativewindow_x11.cc
@@ -49,8 +49,6 @@ NativeWindowX11::NativeWindowX11(void* native_window, Window& window)
 
 	screen = DefaultScreen(display);
 
-	int clearColor = 0xbbbbbb;
-
 	::Window parentWindow;
 	if(native_window)
 	{
@@ -63,12 +61,18 @@ NativeWindowX11::NativeWindowX11(void* native_window, Window& window)
 
 	// Create the window
 	unsigned long border = 0;
-	xwindow = XCreateSimpleWindow(display,
-	                              parentWindow,
-	                              window.x(), window.y(),
-	                              window.width(), window.height(),
-	                              border,
-	                              clearColor, clearColor);
+	XSetWindowAttributes swa;
+	swa.backing_store = Always;
+	xwindow = XCreateWindow(display,
+	                        parentWindow,
+	                        window.x(), window.y(),
+	                        window.width(), window.height(),
+	                        border,
+	                        CopyFromParent, // depth
+	                        CopyFromParent, // class
+	                        CopyFromParent, // visual
+	                        CWBackingStore,
+	                        &swa);
 
 	long mask = (StructureNotifyMask |
 	             PointerMotionMask |
-- 
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