From 1b0eb4aad46a6dfe9b1157ab14196a3e318b5bd6 Mon Sep 17 00:00:00 2001
From: Rafal Harabien <rafalh@reactos.org>
Date: Sun, 18 Dec 2011 00:22:50 +0000
Subject: [PATCH] [WIN32K] - Fail if display name device is given to
 EnumerateDisplayDevices and index is not set to 0. Fixes hang in Display
 Settings -> Advanced -> Monitor.

svn path=/trunk/; revision=54679
---
 reactos/subsystems/win32/win32k/ntuser/display.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/reactos/subsystems/win32/win32k/ntuser/display.c b/reactos/subsystems/win32/win32k/ntuser/display.c
index a12c14d505e..3b703cc0e44 100644
--- a/reactos/subsystems/win32/win32k/ntuser/display.c
+++ b/reactos/subsystems/win32/win32k/ntuser/display.c
@@ -382,6 +382,10 @@ NtUserEnumDisplayDevices(
             pustrDevice = NULL;
    }
 
+    /* If name is given only iDevNum==0 gives results */
+    if (pustrDevice && iDevNum != 0)
+        return FALSE;
+
     /* Acquire global USER lock */
     UserEnterShared();