[tkreuzer] 48576: [WIN32K] - co_IntTranslateMouseMessage: properly initialize *HitTest and only send WM_NCHITTEST when the message is going to be removed - co_IntPeekMessage: Prevent possible use of uninitialized HitTest by ProcessMouseMessage() - Patch by Jan Roeloffzen [jroeloffzen at hotmail dot com] - Fixes bug 2139

Author: tkreuzer
Date: Fri Aug 20 19:24:48 2010
New Revision: 48576

URL: http://svn.reactos.org/svn/reactos?rev=48576&view=rev
Log:
[WIN32K]
- co_IntTranslateMouseMessage: properly initialize *HitTest and only send WM_NCHITTEST
when the message is going to be removed
- co_IntPeekMessage: Prevent possible use of uninitialized HitTest by
ProcessMouseMessage()
- Patch by Jan Roeloffzen [jroeloffzen at hotmail dot com]
- Fixes bug 2139

Modified:
    trunk/reactos/subsystems/win32/win32k/ntuser/message.c

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/message.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] Fri Aug 20
19:24:48 2010
@@ -579,14 +579,20 @@
       return TRUE;
    }
 
+   *HitTest = HTCLIENT;
+
    UserRefObjectCo(Window, &Ref);
 
    if ( ThreadQueue == Window->pti->MessageQueue &&
         ThreadQueue->CaptureWindow != Window->hSelf)
    {
       /* only send WM_NCHITTEST messages if we're not capturing the window! */
-      *HitTest = co_IntSendMessage(Window->hSelf, WM_NCHITTEST, 0,
-                                   MAKELONG(Msg->pt.x, Msg->pt.y));
+      if (Remove ) 
+      {
+         *HitTest = co_IntSendMessage(Window->hSelf, WM_NCHITTEST, 0,
+                                      MAKELONG(Msg->pt.x, Msg->pt.y));
+      } 
+      /* else we are going to see this message again, but then with Remove == TRUE */
 
       if (*HitTest == (USHORT)HTTRANSPARENT)
       {
@@ -625,10 +631,6 @@
             UserDerefObjectCo(DesktopWindow);
          }
       }
-   }
-   else
-   {
-      *HitTest = HTCLIENT;
    }
 
    if ( gspv.bMouseClickLock && 
@@ -800,6 +802,8 @@
     * WM_TIMER messages
  */
 CheckMessages:
+
+   HitTest = HTNOWHERE;
 
    Present = FALSE;