user32: Send the same lParam with WM_SYSCOMMAND/SC_CLOSE as was received with WM_NCLBUTTONDOWN.

dlls/user32/nonclient.c

@@ -1316,7 +1316,7 @@ static void NC_TrackMinMaxBox( HWND hwnd, WORD wParam )
  *
  * Track a mouse button press on the Win95 close button.
  */
-static void NC_TrackCloseButton (HWND hwnd, WORD wParam)
+static void NC_TrackCloseButton (HWND hwnd, WPARAM wParam, LPARAM lParam)
 {
     MSG msg;
     HDC hdc;
@@ -1364,7 +1364,7 @@ static void NC_TrackCloseButton (HWND hwnd, WORD wParam)
     ReleaseDC( hwnd, hdc );
     if (!pressed) return;
 
-    SendMessageW( hwnd, WM_SYSCOMMAND, SC_CLOSE, MAKELONG(msg.pt.x,msg.pt.y) );
+    SendMessageW( hwnd, WM_SYSCOMMAND, SC_CLOSE, lParam );
 }
 
 
@@ -1442,7 +1442,7 @@ LRESULT NC_HandleNCLButtonDown( HWND hwnd, WPARAM wParam, LPARAM lParam )
         break;
 
     case HTCLOSE:
-        NC_TrackCloseButton (hwnd, wParam);
+        NC_TrackCloseButton (hwnd, wParam, lParam);
         break;
 
     case HTLEFT: