- Implement NtUserMonitorFromWindow.

[reactos.git] / reactos / subsys / win32k / ntuser / monitor.c

diff --git a/reactos/subsys/win32k/ntuser/monitor.c b/reactos/subsys/win32k/ntuser/monitor.c
index a413fef..0d5ca94 100644 (file)
--- a/reactos/subsys/win32k/ntuser/monitor.c
+++ b/reactos/subsys/win32k/ntuser/monitor.c
@@ -878,6 +878,23 @@ NtUserMonitorFromWindow(
        IN HWND hWnd,
        IN DWORD dwFlags)
 {
-       UNIMPLEMENTED;
-       return (HMONITOR)NULL;
+       PWINDOW_OBJECT Window;
+       HMONITOR hMonitor = NULL;
+       RECT Rect;
+  
+        Window = IntGetWindowObject(hWnd);
+       if (Window == NULL)
+       {
+               SetLastWin32Error(ERROR_INVALID_WINDOW_HANDLE);
+               return (HMONITOR)NULL;
+       }
+
+       Rect.left = Rect.right = Window->WindowRect.left;
+       Rect.top = Rect.bottom = Window->WindowRect.bottom;
+
+       IntGetMonitorsFromRect(&Rect, &hMonitor, NULL, 1, dwFlags);
+
+       IntReleaseWindowObject(Window);
+
+       return hMonitor;
 }