From 464468ce33d4a70c1365bdce98612848b2bbf031 Mon Sep 17 00:00:00 2001
From: Richard Campbell <betam4x@gmail.com>
Date: Mon, 24 Mar 2003 23:08:51 +0000
Subject: [PATCH] Implemented UpdateWindow()

svn path=/trunk/; revision=4427
---
 reactos/iface/addsys/w32ksvc.db       |  1 +
 reactos/include/win32k/ntuser.h       |  3 ++
 reactos/lib/user32/windows/paint.c    |  4 +-
 reactos/subsys/win32k/ntuser/window.c | 56 +++++++++++----------------
 4 files changed, 28 insertions(+), 36 deletions(-)

diff --git a/reactos/iface/addsys/w32ksvc.db b/reactos/iface/addsys/w32ksvc.db
index 934e5cf05ba..b7ccd6139d9 100644
--- a/reactos/iface/addsys/w32ksvc.db
+++ b/reactos/iface/addsys/w32ksvc.db
@@ -529,6 +529,7 @@ NtUserUnregisterClass                   3
 NtUserUnregisterHotKey                  2
 NtUserUpdateInputContext                3
 NtUserUpdateInstance                    3
+NtUserUpdateWindow			1
 NtUserUpdateLayeredWindow               9
 NtUserUpdatePerUserSystemParameters     2
 NtUserUserHandleGrantAccess             3
diff --git a/reactos/include/win32k/ntuser.h b/reactos/include/win32k/ntuser.h
index 0f3ba01faf6..91cc51fafb9 100644
--- a/reactos/include/win32k/ntuser.h
+++ b/reactos/include/win32k/ntuser.h
@@ -1640,6 +1640,9 @@ NtUserUpdateInstance(
   DWORD Unknown1,
   DWORD Unknown2);
 
+BOOL STDCALL
+NtUserUpdateWindow( HWND hWnd );
+
 DWORD
 STDCALL
 NtUserUpdateLayeredWindow(
diff --git a/reactos/lib/user32/windows/paint.c b/reactos/lib/user32/windows/paint.c
index 924944c525d..23f894ca5bc 100644
--- a/reactos/lib/user32/windows/paint.c
+++ b/reactos/lib/user32/windows/paint.c
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id: paint.c,v 1.10 2003/03/18 09:16:44 gvg Exp $
+/* $Id: paint.c,v 1.11 2003/03/24 23:08:51 rcampbell Exp $
  *
  * PROJECT:         ReactOS user32.dll
  * FILE:            lib/user32/windows/input.c
@@ -144,7 +144,7 @@ STDCALL
 UpdateWindow(
   HWND hWnd)
 {
-  return FALSE;
+  return NtUserUpdateWindow( hWnd );
 }
 WINBOOL
 STDCALL
diff --git a/reactos/subsys/win32k/ntuser/window.c b/reactos/subsys/win32k/ntuser/window.c
index 2051588d399..c5d8a18f3d2 100644
--- a/reactos/subsys/win32k/ntuser/window.c
+++ b/reactos/subsys/win32k/ntuser/window.c
@@ -1,4 +1,4 @@
-/* $Id: window.c,v 1.38 2003/03/24 01:36:10 rcampbell Exp $
+/* $Id: window.c,v 1.39 2003/03/24 23:08:51 rcampbell Exp $
  *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel
@@ -851,41 +851,17 @@ NtUserMoveWindow(
     uExStyle = Window->ExStyle;
     pWinPos.hwnd = hWnd;
     
-        /* FIXME:  Is this the correct behavior? */  
-    if (X)
-    {
-        pWinPos.x = X;
-    }
-    else
-    {
-        pWinPos.x = Window->WindowRect.left;
-    }
-    if (Y)
-    {
-        pWinPos.y = Y;
-    }
-    else
-    {
-        pWinPos.y = Window->WindowRect.top;
-    }
-    
-    if (nWidth)
-    {
+    pWinPos.x = X;
+    pWinPos.y = Y;
+    if (nWidth > NtUserGetSystemMetrics(SM_CXMIN))
         pWinPos.cx = pWinPos.x + nWidth;
-    }
     else
-    {
-        pWinPos.cx = pWinPos.x + (Window->WindowRect.right - Window->WindowRect.left);
-    }
-    if (nHeight)
-    {
-        pWinPos.cy = pWinPos.y + nHeight;
-    }
+        pWinPos.cx = pWinPos.x + NtUserGetSystemMetrics(SM_CXMIN);
+        
+    if (nHeight > NtUserGetSystemMetrics(SM_CYMIN))
+        pWinPos.cy = pWinPos.x + nHeight;
     else
-    {
-        pWinPos.cy = pWinPos.y + (Window->WindowRect.bottom - Window->WindowRect.top);
-    }
-    
+        pWinPos.cy = pWinPos.y + NtUserGetSystemMetrics(SM_CYMIN);
     NtUserSendMessage(hWnd, WM_WINDOWPOSCHANGING, 0, (LPARAM)&pWinPos);
     
     Window->WindowRect.top = Window->ClientRect.top = pWinPos.y;
@@ -901,7 +877,7 @@ NtUserMoveWindow(
       Window->ClientRect.right -= NtUserGetSystemMetrics(SM_CXSIZEFRAME);
     }
     if (uStyle & WS_CAPTION)
-       Window->ClientRect.top += NtUserGetSystemMetrics(SM_CYCAPTION) + 1;
+       Window->ClientRect.top += NtUserGetSystemMetrics(SM_CYCAPTION);
     if ( Window->Class->Class.lpszMenuName)
     {
         Window->ClientRect.top += NtUserGetSystemMetrics(SM_CYMENU);
@@ -1175,6 +1151,18 @@ NtUserShowWindowAsync(DWORD Unknown0,
   return 0;
 }
 
+BOOL STDCALL NtUserUpdateWindow( HWND hWnd )
+{
+    PWINDOW_OBJECT pWindow = W32kGetWindowObject( hWnd);
+
+    if (!pWindow)
+        return FALSE;
+    if (pWindow->UpdateRegion)
+        NtUserSendMessage( hWnd, WM_PAINT,0,0);
+
+    return TRUE;
+}
+
 DWORD STDCALL
 NtUserUpdateLayeredWindow(DWORD Unknown0,
 			  DWORD Unknown1,