587bd2724f
svn path=/trunk/; revision=35032
259 lines
6.9 KiB
C
259 lines
6.9 KiB
C
/* print_mswin.c
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* Printing support for MSWindows
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 2002, Jeffrey C. Foster <jfoste@woodward.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) 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 program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*
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* This original code was from the Technet Article Q139652 :
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* HOWTO: Print a Document
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*/
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#include <string.h>
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#include <stdio.h>
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#include <windows.h>
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#include <commdlg.h>
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#include <winspool.h>
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#include "print_win32.h"
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#include "wsutil/file_util.h"
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/*
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Some thoughts about a GTK win32 printer dialog:
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"EnumPrinters()", asking for information level 2 - the PRINTER_INFO_2
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structure contains a pLocation string pointer, along with other
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information.
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"PrinterProperties", could be used to show a native printer property page?!?
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See
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http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_62ia.asp
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for information on printer APIs.
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*/
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static BOOL CALLBACK abort_proc( HDC hDC, int Error );
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static HDC get_printer_dc(void);
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static void init_doc_struct( DOCINFO* di, char* docname);
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static void print_file( char* file_name, HDC hdc);
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void print_mswin(char *file_name)
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{
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HDC hDC;
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DOCINFO di;
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HWND hWndParent = HWND_DESKTOP; /* would be better to be a real window */
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/* Need a printer DC to print to. */
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hDC = get_printer_dc();
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/* Did you get a good DC?, Cancel will return NULL also, so what to do? */
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if( !hDC)
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{
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return;
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}
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/* You always have to use an AbortProc(). */
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if( SetAbortProc( hDC, abort_proc ) == SP_ERROR )
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{
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MessageBox( NULL, "Error setting up AbortProc",
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"Error", MB_APPLMODAL | MB_OK);
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return;
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}
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/* Init the DOCINFO and start the document. */
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init_doc_struct( &di, "MyDoc");
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StartDoc( hDC, &di );
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/* Print one page. */
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StartPage( hDC );
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print_file(file_name, hDC );
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EndPage( hDC );
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/* Indicate end of document. */
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EndDoc( hDC );
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/* Clean up */
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DeleteDC( hDC );
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}
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/*===============================*/
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/* Obtain printer device context */
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/* ==============================*/
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static HDC get_printer_dc(void)
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{
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PRINTDLG pdlg;
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/*
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* XXX - can this be done without a Windows print dialog?
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*
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* "CreateDC()" creates a device context, and you can
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* apparently specify WINSPL16 as the driver name on
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* Windows OT, or the name of a "print provider", such as
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* "WINSPOOL" on Windows NT, to get a context for a printer.
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*
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* The device name would be the printer name as shown by the
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* Print Manager; is there a way to enumerate those?
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*/
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/* Initialize the PRINTDLG structure. */
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memset( &pdlg, 0, sizeof( PRINTDLG ) );
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pdlg.lStructSize = sizeof( PRINTDLG );
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/* Set the flag to return printer DC. */
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pdlg.Flags =
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/* return the device context we need */
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PD_RETURNDC |
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/* disable the "Pages" radio button */
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PD_NOPAGENUMS |
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/* disable the "Selection" radio button */
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PD_NOSELECTION |
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/* let device print multiple pages (if requested) */
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PD_USEDEVMODECOPIESANDCOLLATE;
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/* Invoke the printer dialog box. */
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PrintDlg( &pdlg );
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/* hDC member of the PRINTDLG structure contains the printer DC. */
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return pdlg.hDC;
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}
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/*===============================*/
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/* The Abort Procudure */
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/* ==============================*/
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static BOOL CALLBACK abort_proc( HDC hDC, int Error )
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{
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MSG msg;
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while( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) )
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{
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TranslateMessage( &msg );
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DispatchMessage( &msg );
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}
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return TRUE;
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}
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/*===============================*/
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/* Initialize DOCINFO structure */
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/* ==============================*/
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static void init_doc_struct( DOCINFO* di, char* docname)
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{
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/* Always zero it before using it. */
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memset( di, 0, sizeof( DOCINFO ) );
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/* Fill in the required members. */
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di->cbSize = sizeof( DOCINFO );
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di->lpszDocName = docname;
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}
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/*===============================*/
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/* Drawing on the DC */
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/* ==============================*/
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static void print_file( char *file_name, HDC hdc) {
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#define max_buf_size 1024
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#define max_lines 66
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#define y_offset 5
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#define x_offset 5
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FILE* fh1;
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size_t results;
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int cnt=0, y_pos = y_offset, y_cnt = 0;
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char buf[ max_buf_size];
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char ch;
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TEXTMETRIC tm;
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GetTextMetrics(hdc, &tm);
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SetMapMode (hdc, MM_TEXT);
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fh1 = ws_fopen( file_name, "r" );
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if( !fh1 ) {
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MessageBox( NULL, "Open failed on input file",
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"Error", MB_APPLMODAL | MB_OK);
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return;
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}
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while ((results = fread( &ch, 1, 1, fh1 )) != 0) {
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/* end of page (form feed)? */
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if ( ch == 0x0c){
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/* send buffer */
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buf[cnt] = 0;
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TextOut(hdc, x_offset,y_pos, buf, (int) strlen(buf));
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y_pos += tm.tmHeight;
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cnt = 0;
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/* reset page */
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EndPage( hdc );
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StartPage( hdc );
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y_pos = y_offset;
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y_cnt = 0;
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continue;
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}
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/* end of line (line feed)? */
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if ( ch == 0x0a){
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/* send buffer */
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buf[ cnt] = 0;
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TextOut(hdc, x_offset,y_pos, buf, (int) strlen(buf));
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y_pos += tm.tmHeight;
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cnt = 0;
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/* last line on page? -> reset page */
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if ( ++y_cnt == max_lines){
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EndPage( hdc );
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StartPage( hdc );
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y_pos = y_offset;
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y_cnt = 0;
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}
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continue;
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}
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/* buffer full? */
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if ( cnt == ( max_buf_size - 1)) {
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/* send buffer */
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buf[ cnt] = 0;
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TextOut(hdc, x_offset, y_pos, buf, (int) strlen(buf));
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y_pos += tm.tmHeight;
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cnt = 0;
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/* last line on page? -> reset page */
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if ( ++y_cnt == max_lines){
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EndPage( hdc );
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StartPage( hdc );
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y_pos = y_offset;
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y_cnt = 0;
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}
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continue;
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}
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buf[ cnt++] = ch;
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} /* while */
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/* Print the remaining text if needed */
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if ( cnt > 0) {
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buf[ cnt] = 0;
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TextOut(hdc, 0,y_pos, buf, (int) strlen(buf));
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}
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fclose(fh1);
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}
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