[jimtabor] 62610: [User32] - Patch by Piotr Caban : Make it possible to activate a window with parent and no WS_CHILD flag in WS_NCLBUTTONDOWN function. - Sync port from wine with modifications and...

Author: jimtabor
Date: Fri Apr  4 14:49:22 2014
New Revision: 62610

URL: http://svn.reactos.org/svn/reactos?rev=62610&view=rev
Log:
[User32]
- Patch by Piotr Caban : Make it possible to activate a window with parent and no WS_CHILD flag in WS_NCLBUTTONDOWN function.
- Sync port from wine with modifications and addons.

Modified:
    trunk/reactos/win32ss/user/user32/windows/nonclient.c

Modified: trunk/reactos/win32ss/user/user32/windows/nonclient.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/user32/windows...
==============================================================================
--- trunk/reactos/win32ss/user/user32/windows/nonclient.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/user32/windows/nonclient.c	[iso-8859-1] Fri Apr  4 14:49:22 2014
@@ -980,26 +980,44 @@
 LRESULT
 DefWndNCLButtonDown(HWND hWnd, WPARAM wParam, LPARAM lParam)
 {
+    PWND Wnd = ValidateHwnd(hWnd);
+
     switch (wParam)
     {
         case HTCAPTION:
         {
-	        HWND hTopWnd = GetAncestor(hWnd, GA_ROOT);
-	        if ( NtUserCallHwndLock(hTopWnd, HWNDLOCK_ROUTINE_SETFOREGROUNDWINDOWMOUSE) ||
-                    GetActiveWindow() == hTopWnd)
-	        {
-	            SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, lParam);
-	        }
-	        break;
+            HWND hTopWnd = hWnd, parent;
+            while(1)
+            {
+                if ((GetWindowLongW( hTopWnd, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) != WS_CHILD)
+                    break;
+                parent = GetAncestor( hTopWnd, GA_PARENT );
+                if (!parent || parent == GetDesktopWindow()) break;
+                hTopWnd = parent;
+            }
+
+            if ( NtUserCallHwndLock(hTopWnd, HWNDLOCK_ROUTINE_SETFOREGROUNDWINDOWMOUSE) ||
+                 GetActiveWindow() == hTopWnd)
+            {
+               SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, lParam);
+            }
+            break;
         }
         case HTSYSMENU:
         {
           LONG style = GetWindowLongPtrW( hWnd, GWL_STYLE );
           if (style & WS_SYSMENU)
-            {
-	      SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU + HTSYSMENU,
-			   lParam);
-	    }
+          {
+              if( Wnd && !(style & WS_MINIMIZE) )
+              {
+                RECT rect;
+                HDC hDC = GetWindowDC(hWnd);
+                UserGetInsideRectNC(Wnd, &rect);
+                UserDrawSysMenuButton(hWnd, hDC, &rect, TRUE);
+                ReleaseDC( hWnd, hDC );
+              }
+	      SendMessageW(hWnd, WM_SYSCOMMAND, SC_MOUSEMENU + HTSYSMENU, lParam);
+	  }
      break;
         }
         case HTMENU:
@@ -1070,7 +1088,14 @@
     }
     case HTSYSMENU:
     {
-      SendMessageW(hWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
+      HMENU hSysMenu = GetSystemMenu(hWnd, FALSE);
+      UINT state = GetMenuState(hSysMenu, SC_CLOSE, MF_BYCOMMAND);
+                  
+      /* If the close item of the sysmenu is disabled or not present do nothing */
+      if ((state & (MF_DISABLED | MF_GRAYED)) || (state == 0xFFFFFFFF))
+          break;
+
+      SendMessageW(hWnd, WM_SYSCOMMAND, SC_CLOSE, lParam);
       break;
     }
     default: