115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* __XSAVESCREEN()/__XRESTSCREEN() functions
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*
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* Copyright 1999 Paul Tucker <ptucker@sympatico.ca>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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/*
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* The following parts are Copyright of the individual authors.
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* www - http://www.harbour-project.org
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*
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* Copyright 1999-2001 Viktor Szakats <viktor.szakats@syenar.hu>
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* Rewritten in C
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*
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* See doc/license.txt for licensing terms.
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*
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*/
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#include "hbapigt.h"
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/* NOTE: In original CA-Cl*pper 5.x these functions are written in Clipper
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[vszakats] */
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static SHORT s_iRow;
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static SHORT s_iCol;
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static void * s_pBuffer = NULL;
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void hb_conXSaveRestRelease( void )
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{
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if( s_pBuffer )
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{
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hb_xfree( s_pBuffer );
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s_pBuffer = NULL;
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}
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}
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HB_FUNC( __XSAVESCREEN )
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{
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if( s_pBuffer != NULL )
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hb_xfree( s_pBuffer );
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hb_gtGetPos( &s_iRow, &s_iCol );
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{
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USHORT uiSize;
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hb_gtRectSize( 0, 0, hb_gtMaxRow(), hb_gtMaxCol(), &uiSize );
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s_pBuffer = hb_xgrab( uiSize );
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}
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hb_gtSave( 0, 0, hb_gtMaxRow(), hb_gtMaxCol(), s_pBuffer );
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}
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/* NOTE: There's no check about the screen size on restore, so this will
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fail if the user has changed the screen resolution between calling
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save and restore.
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[vszakats] */
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HB_FUNC( __XRESTSCREEN )
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{
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if( s_pBuffer != NULL )
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{
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hb_gtRest( 0, 0, hb_gtMaxRow(), hb_gtMaxCol(), s_pBuffer );
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hb_xfree( s_pBuffer );
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s_pBuffer = NULL;
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hb_gtSetPosContext( s_iRow, s_iCol, HB_GT_SET_POS_AFTER );
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}
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}
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