98 lines
2.6 KiB
C
98 lines
2.6 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 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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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 program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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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 2000 Victor Szakats <info@szelvesz.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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