[win32k]

-Force all top level windows to update the size and position of their non client area when SPI_SETNONCLIENTMETRICS is used
-Should fix changing the non client metrics like caption height for open windows (before this we needed to close and reopen existing windows to let them be painted properly)

svn path=/trunk/; revision=54186

reactos/subsystems/win32/win32k/ntuser/sysparams.c

@@ -694,6 +694,41 @@ SpiSetWallpaper(PVOID pvParam, FLONG fl)
     return (UINT_PTR)KEY_DESKTOP;
 }
 
+static BOOL
+SpiNotifyNCMetricsChanged()
+{
+    PWND pwndDesktop, pwndCurrent;
+    HWND *ahwnd;
+    USER_REFERENCE_ENTRY Ref;
+    int i;
+
+    pwndDesktop = UserGetDesktopWindow();
+    ASSERT(pwndDesktop);
+
+    ahwnd = IntWinListChildren(pwndDesktop);
+    if(!ahwnd)
+        return FALSE;
+
+    for (i = 0; ahwnd[i]; i++)
+    {
+        pwndCurrent = UserGetWindowObject(ahwnd[i]);
+        if(!pwndCurrent)
+            continue;
+
+        UserRefObjectCo(pwndCurrent, &Ref);
+        co_WinPosSetWindowPos(pwndCurrent, 0, pwndCurrent->rcWindow.left,pwndCurrent->rcWindow.top,
+                                              pwndCurrent->rcWindow.right-pwndCurrent->rcWindow.left
+                                              ,pwndCurrent->rcWindow.bottom - pwndCurrent->rcWindow.top, 
+                              SWP_FRAMECHANGED|SWP_NOACTIVATE|SWP_NOCOPYBITS|
+                              SWP_NOMOVE|SWP_NOZORDER|SWP_NOREDRAW);
+        UserDerefObjectCo(pwndCurrent);
+    }
+
+    ExFreePool(ahwnd);
+
+    return TRUE;
+}
+
 static
 UINT_PTR
 SpiGetSet(UINT uiAction, UINT uiParam, PVOID pvParam, FLONG fl)
@@ -863,6 +898,8 @@ SpiGetSet(UINT uiAction, UINT uiParam, PVOID pvParam, FLONG fl)
                 SpiStoreFont(L"StatusFont", &gspv.ncm.lfStatusFont);
                 SpiStoreFont(L"MessageFont", &gspv.ncm.lfMessageFont);
             }
+            if(!SpiNotifyNCMetricsChanged())
+                return 0;
             return (UINT_PTR)KEY_METRIC;
 
         case SPI_GETMINIMIZEDMETRICS: