From d2ae65c7107da74415218aebdc2acdcbde506915 Mon Sep 17 00:00:00 2001
From: James Tabor <james.tabor@reactos.org>
Date: Thu, 11 Aug 2016 00:29:26 +0000
Subject: [PATCH] - Fix Desktop hang if no windows open.

svn path=/trunk/; revision=72194
---
 reactos/win32ss/user/user32/controls/appswitch.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/reactos/win32ss/user/user32/controls/appswitch.c b/reactos/win32ss/user/user32/controls/appswitch.c
index d9940c19e69..229ee8495f9 100644
--- a/reactos/win32ss/user/user32/controls/appswitch.c
+++ b/reactos/win32ss/user/user32/controls/appswitch.c
@@ -312,7 +312,7 @@ void PrepareWindow(VOID)
    ResizeAndCenter(switchdialog, totalW, totalH);
 }
 
-void ProcessHotKey(VOID)
+BOOL ProcessHotKey(VOID)
 {
    if (!isOpen)
    {
@@ -320,7 +320,7 @@ void ProcessHotKey(VOID)
       EnumWindowsZOrder(EnumerateCallback, 0);
 
       if (windowCount < 2)
-         return;
+         return FALSE;
 
       selectedWindow = 1;
 
@@ -335,6 +335,7 @@ void ProcessHotKey(VOID)
       selectedWindow = (selectedWindow + 1)%windowCount;
       InvalidateRect(switchdialog, NULL, TRUE);
    }
+   return TRUE;
 }
 
 LRESULT WINAPI DoAppSwitch( WPARAM wParam, LPARAM lParam )
@@ -359,7 +360,7 @@ LRESULT WINAPI DoAppSwitch( WPARAM wParam, LPARAM lParam )
       case VK_TAB:
          if( !CreateSwitcherWindow(User32Instance) ) goto Exit;
          if( !GetDialogFont() ) goto Exit;
-         ProcessHotKey();
+         if( !ProcessHotKey() ) goto Exit;
          break;
 
       case VK_ESCAPE: