nexmon – Rev 1
?pathlinks?
/* print_win32.c
* Printing support for MSWindows
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*
* This original code was from the Technet Article Q139652 :
* HOWTO: Print a Document
* You can now find it at http://support.microsoft.com/kb/139652
*/
#include <string.h>
#include <windows.h>
#include <commdlg.h>
#include "print_win32.h"
#include "wsutil/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.
*/
static BOOL CALLBACK abort_proc(HDC hDC, int Error);
static HDC get_printer_dc(short *width, short *height);
static void init_doc_struct(DOCINFO* di, char* docname);
static void print_file(const char* file_name, HDC hdc, int width, int height);
void print_mswin(const char *file_name)
{
HDC hDC;
DOCINFO di;
short int width, height;
/* Need a printer DC to print to. */
hDC = get_printer_dc(&width, &height);
/* 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, width, height);
EndPage(hDC);
/* Indicate end of document. */
EndDoc(hDC);
/* Clean up */
DeleteDC(hDC);
}
/* Obtain printer device context */
static HDC get_printer_dc(short *width, short *height)
{
PRINTDLG pdlg;
PDEVMODE returnedDevmode;
/*
* 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 =
PD_RETURNDC | /* return the device context we need */
PD_NOPAGENUMS | /* disable the "Pages" radio button */
PD_NOSELECTION | /* disable the "Selection" radio button */
PD_USEDEVMODECOPIESANDCOLLATE; /* let device print multiple pages */
/* Invoke the printer dialog box. */
if (PrintDlg(&pdlg)) {
/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd162931%28v=vs.85%29.aspx */
returnedDevmode = (PDEVMODE)GlobalLock(pdlg.hDevMode);
if (returnedDevmode == NULL) {
if (pdlg.hDevMode)
GlobalFree(pdlg.hDevMode);
if (pdlg.hDevNames)
GlobalFree(pdlg.hDevNames);
return NULL;
}
if (returnedDevmode->dmOrientation == DMORIENT_LANDSCAPE) {
*width = returnedDevmode->dmPaperLength;
*height = returnedDevmode->dmPaperWidth;
}
else { /* assume DMORIENT_PORTRAIT */
*width = returnedDevmode->dmPaperWidth;
*height = returnedDevmode->dmPaperLength;
}
GlobalUnlock(pdlg.hDevMode);
if (pdlg.hDevMode)
GlobalFree(pdlg.hDevMode);
if (pdlg.hDevNames)
GlobalFree(pdlg.hDevNames);
}
/* hDC member of the PRINTDLG structure contains the printer DC. */
return pdlg.hDC;
}
/* The Abort Procedure */
static 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 */
static 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 */
static void print_file(const char *file_name, HDC hdc, int width, int height)
{
#define MAX_BUF_SIZE 1024 /* An arbitrary maximum */
#define X_OFFSET 5
#define Y_OFFSET 5
FILE* fh1;
int cnt=0, y_pos = Y_OFFSET, y_cnt = 0;
char buf[MAX_BUF_SIZE];
char ch;
TEXTMETRIC tm;
int max_chars_per_line, max_lines_per_page;
SetMapMode(hdc, MM_LOMETRIC);
GetTextMetrics(hdc, &tm);
max_chars_per_line = MIN(width / (tm.tmMaxCharWidth + 1), MAX_BUF_SIZE);
max_lines_per_page = height / (tm.tmHeight + 1);
SetMapMode(hdc, MM_TEXT);
GetTextMetrics(hdc, &tm);
fh1 = ws_fopen(file_name, "r");
if (!fh1) {
MessageBox(NULL, "Open failed on input file",
"Error", MB_APPLMODAL | MB_OK);
return;
}
while (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, (int) 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, (int) strlen(buf));
y_pos += tm.tmHeight;
cnt = 0;
/* last line on page? -> reset page */
if (++y_cnt == max_lines_per_page) {
EndPage(hdc);
StartPage(hdc);
y_pos = Y_OFFSET;
y_cnt = 0;
}
continue;
}
/* buffer full? */
if (cnt == (max_chars_per_line - 1)) {
/* send buffer */
buf[cnt] = 0;
TextOut(hdc, X_OFFSET, y_pos, buf, (int) strlen(buf));
y_pos += tm.tmHeight;
cnt = 0;
/* last line on page? -> reset page */
if (++y_cnt == max_lines_per_page) {
EndPage(hdc);
StartPage(hdc);
y_pos = Y_OFFSET;
y_cnt = 0;
}
}
buf[cnt++] = ch;
} /* while */
/* Print the remaining text if needed */
if (cnt > 0) {
buf[cnt] = 0;
TextOut(hdc, 0,y_pos, buf, (int) strlen(buf));
}
fclose(fh1);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/