/* print_mswin.c
* Printing support for MSWindows
*
* $Id: print_mswin.c 19568 2006-10-17 01:29:55Z ulfl $
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2002, Jeffrey C. Foster <jfoste@woodward.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
* This original code was from the Technet Article Q139652 :
* HOWTO: Print a Document
*/
#include <string.h>
#include <stdio.h>
#include <windows.h>
#include <commdlg.h>
#ifdef __WIN32__
#include <winspool.h>
#endif
#include "print_mswin.h"
#include "file_util.h"
/*
Some thoughts about a GTK win32 printer dialog:
"EnumPrinters()", asking for information level 2 - the PRINTER_INFO_2
structure contains a pLocation string pointer, along with other
information.
"PrinterProperties", could be used to show a native printer property page?!?
See
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/prntspol_62ia.asp
for information on printer APIs.
*/
BOOL CALLBACK abort_proc( HDC hDC, int Error );
HDC get_printer_dc(void);
void init_doc_struct( DOCINFO* di, char* docname);
void print_file( char* file_name, HDC hdc);
void print_mswin(char *file_name)
{
HDC hDC;
DOCINFO di;
HWND hWndParent = HWND_DESKTOP; /* would be better to be a real window */
/* Need a printer DC to print to. */
hDC = get_printer_dc();
/* Did you get a good DC?, Cancel will return NULL also, so what to do? */
if( !hDC)
{
return;
}
/* You always have to use an AbortProc(). */
if( SetAbortProc( hDC, abort_proc ) == SP_ERROR )
{
MessageBox( NULL, "Error setting up AbortProc",
"Error", MB_APPLMODAL | MB_OK);
return;
}
/* Init the DOCINFO and start the document. */
init_doc_struct( &di, "MyDoc");
StartDoc( hDC, &di );
/* Print one page. */
StartPage( hDC );
print_file(file_name, hDC );
EndPage( hDC );
/* Indicate end of document. */
EndDoc( hDC );
/* Clean up */
DeleteDC( hDC );
}
/*===============================*/
/* Obtain printer device context */
/* ==============================*/
HDC get_printer_dc(void)
{
PRINTDLG pdlg;
/*
* XXX - can this be done without a Windows print dialog?
*
* "CreateDC()" creates a device context, and you can
* apparently specify WINSPL16 as the driver name on
* Windows OT, or the name of a "print provider", such as
* "WINSPOOL" on Windows NT, to get a context for a printer.
*
* The device name would be the printer name as shown by the
* Print Manager; is there a way to enumerate those?
*/
/* Initialize the PRINTDLG structure. */
memset( &pdlg, 0, sizeof( PRINTDLG ) );
pdlg.lStructSize = sizeof( PRINTDLG );
/* Set the flag to return printer DC. */
pdlg.Flags =
/* return the device context we need */
PD_RETURNDC |
/* disable the "Pages" radio button */
PD_NOPAGENUMS |
/* disable the "Selection" radio button */
PD_NOSELECTION |
/* let device print multiple pages (if requested) */
PD_USEDEVMODECOPIESANDCOLLATE;
/* Invoke the printer dialog box. */
PrintDlg( &pdlg );
/* hDC member of the PRINTDLG structure contains the printer DC. */
return pdlg.hDC;
}
/*===============================*/
/* The Abort Procudure */
/* ==============================*/
BOOL CALLBACK abort_proc( HDC hDC, int Error )
{
MSG msg;
while( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
return TRUE;
}
/*===============================*/
/* Initialize DOCINFO structure */
/* ==============================*/
void init_doc_struct( DOCINFO* di, char* docname)
{
/* Always zero it before using it. */
memset( di, 0, sizeof( DOCINFO ) );
/* Fill in the required members. */
di->cbSize = sizeof( DOCINFO );
di->lpszDocName = docname;
}
/*===============================*/
/* Drawing on the DC */
/* ==============================*/
void print_file( char *file_name, HDC hdc) {
#define max_buf_size 1024
#define max_lines 66
#define y_offset 5
#define x_offset 5
FILE* fh1;
int results, cnt=0, y_pos = y_offset, y_cnt = 0;
char buf[ max_buf_size];
char ch;
TEXTMETRIC tm;
GetTextMetrics(hdc, &tm);
SetMapMode (hdc, MM_TEXT);
fh1 = eth_fopen( file_name, "r" );
if( !fh1 ) {
perror( "open failed on input file" );
return;
}
while ((results = fread( &ch, 1, 1, fh1 )) != 0) {
/* end of page (form feed)? */
if ( ch == 0x0c){
/* send buffer */
buf[ cnt] = 0;
TextOut(hdc, x_offset,y_pos, buf, strlen(buf));
y_pos += tm.tmHeight;
cnt = 0;
/* reset page */
EndPage( hdc );
StartPage( hdc );
y_pos = y_offset;
y_cnt = 0;
continue;
}
/* end of line (line feed)? */
if ( ch == 0x0a){
/* send buffer */
buf[ cnt] = 0;
TextOut(hdc, x_offset,y_pos, buf, strlen(buf));
y_pos += tm.tmHeight;
cnt = 0;
/* last line on page? -> reset page */
if ( ++y_cnt == max_lines){
EndPage( hdc );
StartPage( hdc );
y_pos = y_offset;
y_cnt = 0;
}
continue;
}
/* buffer full? */
if ( cnt == ( max_buf_size - 1)) {
/* send buffer */
buf[ cnt] = 0;
TextOut(hdc, x_offset, y_pos, buf, strlen(buf));
y_pos += tm.tmHeight;
cnt = 0;
/* last line on page? -> reset page */
if ( ++y_cnt == max_lines){
EndPage( hdc );
StartPage( hdc );
y_pos = y_offset;
y_cnt = 0;
}
continue;
}
buf[ cnt++] = ch;
} /* while */
/* Print the remaining text if needed */
if ( cnt > 0) {
buf[ cnt] = 0;
TextOut(hdc, 0,y_pos, buf, strlen(buf));
}
fclose(fh1);
}
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