GETPDRIV.C

/******************************************************************************\ 
*       This is a part of the Microsoft Source Code Samples.  
*       Copyright 1993 - 1998 Microsoft Corporation. 
*       All rights reserved.  
*       This source code is only intended as a supplement to  
*       Microsoft Development Tools and/or WinHelp documentation. 
*       See these sources for detailed information regarding the  
*       Microsoft samples programs. 
\******************************************************************************/ 
 
/******************************************************************************\ 
* 
*  PROGRAM:     GETPDRIV.C 
* 
*  PURPOSE:     Handles display of information returned by call to 
*               GetPrinterDriver. GetPrinterDriver is called for the 
*               currently selected printer (in the tool bar comobobox), 
*               and the results are formatted and displayed in a dialog 
*               box. 
* 
*  FUNTIONS:    GetPrinterDriverDlgProc - handles messages for dialog 
*               DisplayPrinterDriverInfo- retrieves & displays printer 
*                                           driver info 
* 
\******************************************************************************/ 
 
#include <windows.h> 
#include <winspool.h> 
#include <string.h> 
#include <stdio.h> 
#include <winspool.h> 
#include "common.h" 
#include "getpdriv.h" 
#include "resource.h" 
 
/******************************************************************************\ 
* 
*  FUNCTION:    GetPrinterDriverDlgProc (standard dlg proc INPUTS/RETURNS) 
* 
*  COMMENTS:    Processes messages for getPrinterDriver dialog box 
* 
\******************************************************************************/ 
 
LRESULT CALLBACK GetPrinterDriverDlgProc (HWND   hwnd,   UINT msg, 
                                          WPARAM wParam, LPARAM lParam) 
{ 
  switch (msg) 
  { 
    case WM_INITDIALOG: 
    { 
      BOOL bReturn; 
      char buf[BUFSIZE]; 
 
  // 
      // shove all the printer driver info in the list box 
      // 
   
      SetCursor (LoadCursor (NULL, IDC_WAIT)); 
      bReturn = DisplayPrinterDriverInfo (hwnd); 
      SetCursor (LoadCursor (NULL, IDC_ARROW)); 
 
      if (!bReturn) 
      { 
        EndDialog (hwnd, TRUE); 
      } 
 
      // 
      // set window title to reflect current device 
      // 
 
      else 
      { 
        sprintf (buf, "GetPrinterDriver: %s;%s;%s", gszDeviceName, gszPort, 
                 gszDriverName); 
 
        SetWindowText (hwnd, (LPCSTR) buf); 
      } 
 
      break; 
    } 
 
    case WM_COMMAND: 
 
      switch (LOWORD (wParam)) 
      { 
        case DID_OK: 
 
          EndDialog (hwnd, TRUE); 
          return 1; 
      } 
      break; 
  } 
  return 0; 
} 
 
 
 
/******************************************************************************\ 
* 
*  FUNCTION:    DisplayPrinterDriverInfo 
* 
*  INPUTS:      hwnd - handle of GetPrinterDriver dialog box 
* 
*  RETURNS:     TRUE if successful, 
*               FALSE otherwise 
* 
\******************************************************************************/ 
 
 
BOOL DisplayPrinterDriverInfo (HWND hwnd) 
{ 
  HANDLE        hPrinter; 
  DWORD         dwBytesNeeded; 
  DRIVER_INFO_1 *pDriverInfo1; 
  DRIVER_INFO_2 *pDriverInfo2; 
  char          buf[BUFSIZE]; 
  char          pEnvironment[BUFSIZE] = ""; 
  BOOL          bReturn = TRUE; 
 
  // 
  // open selected printer & alloc buffers & get sundry info, close printer 
  // 
 
  OpenPrinter (gszDeviceName, &hPrinter, NULL); 
 
  if (!hPrinter) 
  { 
    char buf[BUFSIZE]; 
 
    sprintf (buf, GetStringRes(IDS_FMT_OPNPRTFAIL), gszDeviceName); 
    ErrMsgBox ((LPCSTR) buf, ERR_MOD_NAME); 
    bReturn  = FALSE; 
    goto display_prt_drv_info_done1; 
  } 
 
  GetPrinterDriver (hPrinter, pEnvironment, 1, NULL, 0, &dwBytesNeeded); 
 
  // 
  // simple error checking, if these work assume rest will too 
  // 
 
  if (!(pDriverInfo1 = (DRIVER_INFO_1 *) LocalAlloc (LPTR, dwBytesNeeded))) 
  { 
    ErrMsgBox (GetStringRes(IDS_LALLOCFAIL), ERR_MOD_NAME); 
    bReturn = FALSE; 
    goto display_prt_drv_info_done1; 
  } 
 
  if (!GetPrinterDriver (hPrinter, pEnvironment, 1, (LPBYTE) pDriverInfo1, 
                         dwBytesNeeded, &dwBytesNeeded)) 
  { 
    ErrMsgBox (GetStringRes(IDS_GETPRTDRVFAIL), ERR_MOD_NAME); 
    bReturn = FALSE; 
    goto display_prt_drv_info_done2; 
  } 
 
  GetPrinterDriver (hPrinter, pEnvironment, 2, NULL, 0, &dwBytesNeeded); 
  pDriverInfo2 = (DRIVER_INFO_2 *) LocalAlloc (LPTR, dwBytesNeeded); 
  GetPrinterDriver (hPrinter, pEnvironment, 2, (LPBYTE) pDriverInfo2, 
                    dwBytesNeeded, &dwBytesNeeded); 
 
  ClosePrinter (hPrinter); 
 
  // 
  // shove info in listbox 
  // 
 
  sprintf (buf, gaDrvInfo[0]); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[1], pDriverInfo1->pName); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[2]); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[3], pDriverInfo2->cVersion); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[4], pDriverInfo2->pName); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[5], pDriverInfo2->pEnvironment); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[6], pDriverInfo2->pDriverPath); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[7], pDriverInfo2->pDataFile); 
  outstr(); 
 
  sprintf (buf, gaDrvInfo[8], pDriverInfo2->pConfigFile); 
  outstr(); 
 
  LocalFree (LocalHandle (pDriverInfo2)); 
 
display_prt_drv_info_done2: 
 
  LocalFree (LocalHandle (pDriverInfo1)); 
 
display_prt_drv_info_done1: 
 
  return bReturn; 
}