Close the right window when clicking on a non active window close
button.

windows/nonclient.c

diff --git a/windows/nonclient.c b/windows/nonclient.c
index 9a1546a..0e41482 100644
--- a/windows/nonclient.c
+++ b/windows/nonclient.c
@@ -2305,20 +2305,6 @@
 			sizingRect.bottom - sizingRect.top,
 		      ( hittest == HTCAPTION ) ? SWP_NOSIZE : 0 );
         }
-        else
-        {
-            /* if the moving/resizing is canceled and the window is not active
-             * call SetWindowPos to activate and to show this window
-             */
-            if (GetActiveWindow() != hwnd)
-                SetWindowPos( hwnd, 0, 0, 0,0,0,SWP_NOSIZE | SWP_NOMOVE | SWP_SHOWWINDOW);
-        }
-    }
-    else
-    {
-        /* show the window if it is not moved/resized and it is not active */
-        if (GetActiveWindow() != hwnd)
-            SetWindowPos( hwnd, 0, 0, 0,0,0,SWP_NOSIZE | SWP_NOMOVE | SWP_SHOWWINDOW);
     }
 
     if( IsWindow(hwnd) )
@@ -2583,6 +2569,9 @@
 {
     HWND hwnd = pWnd->hwndSelf;
 
+    if(GetForegroundWindow() != hwnd)
+        SetWindowPos( hwnd, 0, 0, 0,0,0,SWP_NOSIZE | SWP_NOMOVE | SWP_DRAWFRAME);
+
     switch(wParam)  /* Hit test */
     {
     case HTCAPTION: