gtk2/gtk/gtkprint-win32.c

/* GTK - The GIMP Toolkit
 * gtkprintoperation.c: Print Operation
 * Copyright (C) 2006, Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef _MSC_VER
#define _WIN32_WINNT 0x0500
#define WINVER _WIN32_WINNT
#endif

#include "config.h"
#include "gtkprint-win32.h"
#include "gtkalias.h"

void
gtk_print_win32_devnames_free (GtkPrintWin32Devnames *devnames)
{
  g_free (devnames->driver);
  g_free (devnames->device);
  g_free (devnames->output);
  g_free (devnames);
}

GtkPrintWin32Devnames *
gtk_print_win32_devnames_from_win32 (HGLOBAL global)
{
  LPDEVNAMES win = GlobalLock (global);
  gunichar2 *data = (gunichar2 *)win;
  GtkPrintWin32Devnames *devnames = g_new (GtkPrintWin32Devnames, 1);
  
  devnames->driver = g_utf16_to_utf8 (data + win->wDriverOffset, 
				      -1, NULL, NULL, NULL);
  devnames->device = g_utf16_to_utf8 (data + win->wDeviceOffset, 
				      -1, NULL, NULL, NULL);
  devnames->output = g_utf16_to_utf8 (data + win->wOutputOffset, 
				      -1, NULL, NULL, NULL);
  devnames->flags = win->wDefault;
  
  GlobalUnlock (global);

  return devnames;
}

HGLOBAL 
gtk_print_win32_devnames_to_win32 (const GtkPrintWin32Devnames *devnames)
{
  HGLOBAL global;
  LPDEVNAMES windevnames;
  gunichar2 *data;
  gunichar2 *driver, *device, *output;
  glong driver_len, device_len, output_len;
  int i;

  driver = g_utf8_to_utf16 (devnames->driver, -1, NULL, &driver_len, NULL);
  device = g_utf8_to_utf16 (devnames->device, -1, NULL, &device_len, NULL);
  output = g_utf8_to_utf16 (devnames->output, -1, NULL, &output_len, NULL);

  global = GlobalAlloc (GMEM_MOVEABLE, 
			sizeof (DEVNAMES) + 
			(driver_len + 1) * 2 + 
			(device_len + 1) * 2 +
			(output_len + 1) * 2);

  windevnames = GlobalLock (global);
  data = (gunichar2 *)windevnames;
  i = sizeof(DEVNAMES) / sizeof (gunichar2);

  windevnames->wDriverOffset = i;
  memcpy (data + i, driver, (driver_len + 1) * sizeof (gunichar2));
  i += driver_len + 1;
  windevnames->wDeviceOffset = i;
  memcpy (data + i, device, (device_len + 1) * sizeof (gunichar2));
  i += device_len + 1;
  windevnames->wOutputOffset = i;
  memcpy (data + i, output, (output_len + 1) * sizeof (gunichar2));
  i += output_len + 1;
  windevnames->wDefault = devnames->flags;
  GlobalUnlock (global);

  g_free (driver);
  g_free (device);
  g_free (output);

  return global;
}

HGLOBAL 
gtk_print_win32_devnames_to_win32_from_printer_name (const char *printer_name)
{
  HGLOBAL global;
  GtkPrintWin32Devnames *devnames;
  devnames = gtk_print_win32_devnames_from_printer_name(printer_name);
  if(devnames)
  {
    global = gtk_print_win32_devnames_to_win32 (devnames);
    gtk_print_win32_devnames_free(devnames);
  }
  else
    global = NULL;
  return global;
}

/**
 used to get printer device information from a printer name
 since this can fail, because the user have no right to read printer properties, this function can return NULL
*/
GtkPrintWin32Devnames *
gtk_print_win32_devnames_from_printer_name (const char *printer_name)
{
  HANDLE hprinter;
  gunichar2* win32_printer_name;
  GtkPrintWin32Devnames *devnames;
  win32_printer_name = g_utf8_to_utf16 (printer_name, -1, NULL, NULL, NULL);
  if(OpenPrinterW(win32_printer_name, &hprinter, NULL))
  {
     DWORD needed;
     PRINTER_INFO_2W* printer_info;
     GetPrinterW(hprinter, 2, NULL, 0,&needed);
	 printer_info = (PRINTER_INFO_2W*)g_malloc((gsize)needed);
     GetPrinterW(hprinter, 2, (LPBYTE)printer_info,needed,&needed);
     devnames = g_new (GtkPrintWin32Devnames, 1);
     devnames->driver = g_utf16_to_utf8(printer_info->pDriverName,-1,NULL,NULL,NULL);
	 devnames->device = g_strdup(printer_name);
	 devnames->output = g_utf16_to_utf8(printer_info->pPortName,-1,NULL,NULL,NULL);
	 devnames->flags  = 0;
	 ClosePrinter(hprinter);
	 g_free(printer_info);
  }else
  {
    // could not open printer
    devnames = NULL;
  }
  g_free(win32_printer_name);
  return devnames;
}


#define __GTK_PRINT_WIN32_C__
#include "gtkaliasdef.c"