diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 127b38f553..08d92e8b06 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,13 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2012-09-12 14:13 UTC-0800 Pritpal Bedi (bedipritpal@hotmail.com)
+  * contrib/gtwvg/gtwvg.h
+    ! Fixed: casting.
+
+  * contrib/gtwvg/wvgwin.c
+    + Added: WVG_POSTMESSAGE( hWnd, nMsg, wParam, lParam ).
+
 2012-09-12 11:47 UTC-0800 Pritpal Bedi (bedipritpal@hotmail.com)
   * contrib/gtwvg/gtwvg.c
   * contrib/gtwvg/gtwvg.h
diff --git a/harbour/contrib/gtwvg/gtwvg.h b/harbour/contrib/gtwvg/gtwvg.h
index f5fbf3fd7e..cdde32a71b 100644
--- a/harbour/contrib/gtwvg/gtwvg.h
+++ b/harbour/contrib/gtwvg/gtwvg.h
@@ -468,7 +468,7 @@ typedef struct
 
    PHB_ITEM  pNotifierGUI;                  /* Notifier to Wvg*Parts if embedded into a GT Window        */
 
-   HB_MAXINT threadNO;                      /* Will hold the current THREAD No                           */
+   HB_THREAD_NO threadNO;                   /* Will hold the current THREAD No                           */
 
 } HB_GTWVT, * PHB_GTWVT;
 
diff --git a/harbour/contrib/gtwvg/wvgwin.c b/harbour/contrib/gtwvg/wvgwin.c
index c5e8375cd4..33650e191a 100644
--- a/harbour/contrib/gtwvg/wvgwin.c
+++ b/harbour/contrib/gtwvg/wvgwin.c
@@ -1187,6 +1187,13 @@ HB_FUNC( WVG_SETWINDOWPOSANDSIZE )
                           ( hb_parl( 6 ) ? 0 : SWP_NOREDRAW ) | SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED ) );
 }
 
+/*----------------------------------------------------------------------*/
+
+HB_FUNC( WVG_POSTMESSAGE )
+{
+   hb_retl( PostMessage( wvg_parhwnd( 1 ), hb_parni( 2 ), ( WPARAM ) hb_parni( 3 ), ( LPARAM ) hb_parni( 4 ) ) );
+}
+
 /*----------------------------------------------------------------------*/
 /*
  * Win_SetLayeredWindowAttributes( hWnd, nRGB, nOpacityFactor [0-255] )