242 lines
8.4 KiB
C
242 lines
8.4 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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* WIN_SETDEFAULTPRINTER()
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*
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* Copyright 2009 Viktor Szakats (harbour syenar.net) (based on MS sample code)
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* www - http://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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#include "hbwapi.h"
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#if ! defined( HB_OS_WIN_CE )
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# include <winspool.h>
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#endif
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static HB_BOOL hb_SetDefaultPrinter( LPCTSTR lpPrinterName )
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{
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#if ! defined( HB_OS_WIN_CE )
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BOOL bFlag;
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DWORD dwNeeded = 0;
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HANDLE hPrinter = NULL;
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PRINTER_INFO_2 * ppi2 = NULL;
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LPTSTR pBuffer = NULL;
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/* If Windows 95 or 98, use SetPrinter. */
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if( hb_iswin9x() )
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{
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/* Open this printer so you can get information about it. */
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bFlag = OpenPrinter( ( LPTSTR ) lpPrinterName, &hPrinter, NULL );
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if( ! bFlag || ! hPrinter )
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return HB_FALSE;
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/* The first GetPrinter() tells you how big our buffer must
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be to hold ALL of PRINTER_INFO_2. Note that this will
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typically return FALSE. This only means that the buffer (the 3rd
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parameter) was not filled in. You do not want it filled in here. */
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SetLastError( 0 );
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bFlag = GetPrinter( hPrinter, 2, 0, 0, &dwNeeded );
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if( ! bFlag )
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{
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if( ( GetLastError() != ERROR_INSUFFICIENT_BUFFER ) || ( dwNeeded == 0 ) )
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{
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ClosePrinter( hPrinter );
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return HB_FALSE;
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}
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}
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/* Allocate enough space for PRINTER_INFO_2. */
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ppi2 = ( PRINTER_INFO_2 * ) hb_xgrab( dwNeeded );
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/* The second GetPrinter() will fill in all the current information
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so that all you have to do is modify what you are interested in. */
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bFlag = GetPrinter( hPrinter, 2, ( LPBYTE ) ppi2, dwNeeded, &dwNeeded );
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if( ! bFlag )
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{
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ClosePrinter( hPrinter );
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hb_xfree( ppi2 );
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return HB_FALSE;
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}
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/* Set default printer attribute for this printer. */
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ppi2->Attributes |= PRINTER_ATTRIBUTE_DEFAULT;
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bFlag = SetPrinter( hPrinter, 2, ( LPBYTE ) ppi2, 0 );
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if( ! bFlag )
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{
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ClosePrinter( hPrinter );
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hb_xfree( ppi2 );
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return HB_FALSE;
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}
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/* Tell all open programs that this change occurred.
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Allow each program 1 second to handle this message. */
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SendMessageTimeout( HWND_BROADCAST, WM_SETTINGCHANGE, 0L, ( LPARAM ) ( LPCTSTR ) TEXT( "windows" ), SMTO_NORMAL, 1000, NULL );
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}
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/* If Windows NT, use the SetDefaultPrinter API for Windows 2000,
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or WriteProfileString for version 4.0 and earlier. */
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else if( hb_iswinnt() )
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{
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if( hb_iswin2k() ) /* Windows 2000 or later (use explicit call) */
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{
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HMODULE hWinSpool;
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typedef BOOL ( WINAPI * DEFPRINTER )( LPCTSTR ); /* stops warnings */
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DEFPRINTER fnSetDefaultPrinter;
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hWinSpool = hbwapi_LoadLibrarySystem( TEXT( "winspool.drv" ) );
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if( ! hWinSpool )
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return HB_FALSE;
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fnSetDefaultPrinter = ( DEFPRINTER ) GetProcAddress( hWinSpool,
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#if defined( UNICODE )
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"SetDefaultPrinterW" );
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#else
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"SetDefaultPrinterA" );
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#endif
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if( ! fnSetDefaultPrinter )
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{
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FreeLibrary( hWinSpool );
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return HB_FALSE;
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}
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bFlag = ( * fnSetDefaultPrinter )( lpPrinterName );
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FreeLibrary( hWinSpool );
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if( ! bFlag )
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return HB_FALSE;
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}
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else /* NT4.0 or earlier */
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{
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HB_ISIZ nStrLen;
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/* Open this printer so you can get information about it. */
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bFlag = OpenPrinter( ( LPTSTR ) lpPrinterName, &hPrinter, NULL );
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if( ! bFlag || ! hPrinter )
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return HB_FALSE;
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/* The first GetPrinter() tells you how big our buffer must
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be to hold ALL of PRINTER_INFO_2. Note that this will
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typically return FALSE. This only means that the buffer (the 3rd
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parameter) was not filled in. You do not want it filled in here. */
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SetLastError( 0 );
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bFlag = GetPrinter( hPrinter, 2, 0, 0, &dwNeeded );
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if( ! bFlag )
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{
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if( ( GetLastError() != ERROR_INSUFFICIENT_BUFFER ) || ( dwNeeded == 0 ) )
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{
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ClosePrinter( hPrinter );
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return HB_FALSE;
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}
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}
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/* Allocate enough space for PRINTER_INFO_2. */
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ppi2 = ( PRINTER_INFO_2 * ) hb_xgrab( dwNeeded );
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/* The second GetPrinter() fills in all the current
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information. */
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bFlag = GetPrinter( hPrinter, 2, ( LPBYTE ) ppi2, dwNeeded, &dwNeeded );
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if( ( ! bFlag ) || ( ! ppi2->pDriverName ) || ( ! ppi2->pPortName ) )
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{
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ClosePrinter( hPrinter );
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hb_xfree( ppi2 );
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return HB_FALSE;
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}
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nStrLen = hbwapi_tstrlen( lpPrinterName ) +
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hbwapi_tstrlen( ppi2->pDriverName ) +
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hbwapi_tstrlen( ppi2->pPortName ) + 2;
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/* Allocate buffer big enough for concatenated string.
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String will be in form "printername,drivername,portname". */
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pBuffer = ( LPTSTR ) hb_xgrab( ( nStrLen + 1 ) * sizeof( TCHAR ) );
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pBuffer[ 0 ] = TEXT( '\0' );
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/* Build string in form "printername,drivername,portname". */
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hbwapi_tstrncat( pBuffer, lpPrinterName, nStrLen );
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hbwapi_tstrncat( pBuffer, TEXT( "," ), nStrLen );
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hbwapi_tstrncat( pBuffer, ppi2->pDriverName, nStrLen );
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hbwapi_tstrncat( pBuffer, TEXT( "," ), nStrLen );
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hbwapi_tstrncat( pBuffer, ppi2->pPortName, nStrLen );
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/* Set the default printer in win.ini and registry. */
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bFlag = WriteProfileString( TEXT( "windows" ), TEXT( "device" ), pBuffer );
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if( ! bFlag )
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{
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ClosePrinter( hPrinter );
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hb_xfree( ppi2 );
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hb_xfree( pBuffer );
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return HB_FALSE;
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}
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}
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/* Tell all open programs that this change occurred.
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Allow each app 1 second to handle this message. */
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SendMessageTimeout( HWND_BROADCAST, WM_SETTINGCHANGE, 0L, 0L, SMTO_NORMAL, 1000, NULL );
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}
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/* Clean up. */
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if( hPrinter )
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ClosePrinter( hPrinter );
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if( ppi2 )
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hb_xfree( ppi2 );
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if( pBuffer )
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hb_xfree( pBuffer );
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return HB_TRUE;
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#else
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HB_SYMBOL_UNUSED( lpPrinterName );
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return HB_FALSE;
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#endif
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}
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HB_FUNC( WIN_PRINTERSETDEFAULT )
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{
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void * hPrinterName;
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HB_SIZE nLen;
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LPCTSTR pszPrinterName = HB_PARSTR( 1, &hPrinterName, &nLen );
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hb_retl( nLen > 0 ? hb_SetDefaultPrinter( pszPrinterName ) : HB_FALSE );
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hb_strfree( hPrinterName );
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}
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