From fc3e2909a8d68f42b614acd7fcac25605985e37a Mon Sep 17 00:00:00 2001
From: Pritpal Bedi <bedipritpal@hotmail.com>
Date: Tue, 17 Jan 2012 01:35:26 +0000
Subject: [PATCH] 2012-01-16 17:32 UTC-0800 Pritpal Bedi
 (bedipritpal@hotmail.com)   * contrib/gtwvg/gtwvg.c   * contrib/gtwvg/gtwvg.h
   * contrib/gtwvg/hbgtwvg.ch     + Implemented: HB_GTI_MAXIMIZABLE message.  
      hb_gtInfo( HB_GTI_MAXIMIZABLE, TRUE/FALSE ) -> lPrevState     TODO:
 implement in GTWVT if deemed fit.

---
 harbour/ChangeLog                |  8 ++++++++
 harbour/contrib/gtwvg/gtwvg.c    | 26 ++++++++++++++++++++++++++
 harbour/contrib/gtwvg/gtwvg.h    |  1 +
 harbour/contrib/gtwvg/hbgtwvg.ch |  1 +
 4 files changed, 36 insertions(+)

diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index c09ce75f8a..f037ca7e05 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,14 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2012-01-16 17:32 UTC-0800 Pritpal Bedi (bedipritpal@hotmail.com)
+  * contrib/gtwvg/gtwvg.c
+  * contrib/gtwvg/gtwvg.h
+  * contrib/gtwvg/hbgtwvg.ch
+    + Implemented: HB_GTI_MAXIMIZABLE message.
+       hb_gtInfo( HB_GTI_MAXIMIZABLE, TRUE/FALSE ) -> lPrevState
+    TODO: implement in GTWVT if deemed fit.
+
 2012-01-16 16:50 UTC-0800 Pritpal Bedi (bedipritpal@hotmail.com)
   * contrib/gtwvg/gtwvg.c
     + Extended: hb_gtInfo( HB_GTI_SPEC, HB_GTS_SETPOSITION, [{x,y}] ) 
diff --git a/harbour/contrib/gtwvg/gtwvg.c b/harbour/contrib/gtwvg/gtwvg.c
index d3dd25fe30..1faa97ca40 100644
--- a/harbour/contrib/gtwvg/gtwvg.c
+++ b/harbour/contrib/gtwvg/gtwvg.c
@@ -428,6 +428,7 @@ static PHB_GTWVT hb_gt_wvt_New( PHB_GT pGT, HINSTANCE hInstance, int iCmdShow )
    pWVT->bSelectCopy       = HB_TRUE;
 
    pWVT->bResizable        = HB_TRUE;
+   pWVT->bMaximizable      = HB_TRUE;
    pWVT->bClosable         = HB_TRUE;
 
    {
@@ -3441,6 +3442,31 @@ static HB_BOOL hb_gt_wvt_Info( PHB_GT pGT, int iType, PHB_GT_INFO pInfo )
          }
          break;
       }
+      case HB_GTI_MAXIMIZABLE:
+      {
+         pInfo->pResult = hb_itemPutL( pInfo->pResult, pWVT->bMaximizable );
+         if( pWVT->hWnd )
+         {
+            if( pInfo->pNewVal )
+            {
+               BOOL bMax = hb_itemGetL( pInfo->pNewVal );
+               HB_GTWVT_LONG_PTR style = GetWindowLongPtr( pWVT->hWnd, GWL_STYLE );
+
+               if( bMax && ( ! pWVT->bMaximizable ) )
+               {
+                  style = style | WS_MAXIMIZEBOX;
+               }
+               else if( ( ! bMax ) && pWVT->bMaximizable )
+               {
+                  style = style & ~WS_MAXIMIZEBOX;
+               }
+               SetWindowLongPtr( pWVT->hWnd, GWL_STYLE, style );
+               SetWindowPos( pWVT->hWnd, NULL, 0, 0, 0, 0,
+                             SWP_NOACTIVATE | SWP_DRAWFRAME | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_DEFERERASE );
+            }
+         }
+         break;
+      }
       case HB_GTI_RESIZABLE:
          pInfo->pResult = hb_itemPutL( pInfo->pResult, pWVT->bResizable );
          if( pInfo->pNewVal )
diff --git a/harbour/contrib/gtwvg/gtwvg.h b/harbour/contrib/gtwvg/gtwvg.h
index e8f7775c64..09cf0acf7f 100644
--- a/harbour/contrib/gtwvg/gtwvg.h
+++ b/harbour/contrib/gtwvg/gtwvg.h
@@ -394,6 +394,7 @@ typedef struct
    HB_BOOL  bBeginMarked;
 
    HB_BOOL  bResizable;
+   HB_BOOL  bMaximizable;
 
    HB_BOOL  bSelectCopy;
    void *   hSelectCopy;
diff --git a/harbour/contrib/gtwvg/hbgtwvg.ch b/harbour/contrib/gtwvg/hbgtwvg.ch
index beac8cbea3..7a44afc7cf 100644
--- a/harbour/contrib/gtwvg/hbgtwvg.ch
+++ b/harbour/contrib/gtwvg/hbgtwvg.ch
@@ -86,6 +86,7 @@
 #define HB_GTI_SETPOSANDSIZE             78
 #define HB_GTI_REFRESH                   79
 #define HB_GTI_NOTIFIERBLOCKGUI          80
+#define HB_GTI_MAXIMIZABLE               81
 
 /* Presentation Parameters | HB_GTI_PRESPARAMS */
 #define HB_GTI_PP_EXSTYLE                 1