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Annotation of mstools/samples/printer/getpdriv.c, revision 1.1

1.1     ! root        1: /******************************************************************************\
        !             2: *
        !             3: *  PROGRAM:     GETPDRIV.C
        !             4: *
        !             5: *  PURPOSE:     Handles display of information returned by call to
        !             6: *               GetPrinterDriver. GetPrinterDriver is called for the
        !             7: *               currently selected printer (in the tool bar comobobox),
        !             8: *               and the results are formatted and displayed in a dialog
        !             9: *               box.
        !            10: *
        !            11: *  FUNTIONS:    GetPrinterDriverDlgProc - handles messages for dialog
        !            12: *               DisplayPrinterDriverInfo- retrieves & displays printer
        !            13: *                                           driver info
        !            14: *
        !            15: *
        !            16: *                           Microsoft Developer Support
        !            17: *                     Copyright (c) 1992 Microsoft Corporation
        !            18: *
        !            19: \******************************************************************************/
        !            20: 
        !            21: #include <windows.h>
        !            22: #include <winspool.h>
        !            23: #include <string.h>
        !            24: #include <stdio.h>
        !            25: #include <winspool.h>
        !            26: #include "common.h"
        !            27: #include "getpdriv.h"
        !            28: 
        !            29: 
        !            30: /******************************************************************************\
        !            31: *
        !            32: *  FUNCTION:    GetPrinterDriverDlgProc (standard dlg proc INPUTS/RETURNS)
        !            33: *
        !            34: *  COMMENTS:    Processes messages for getPrinterDriver dialog box
        !            35: *
        !            36: \******************************************************************************/
        !            37: 
        !            38: LRESULT CALLBACK GetPrinterDriverDlgProc (HWND   hwnd,   UINT msg,
        !            39:                                           WPARAM wParam, LPARAM lParam)
        !            40: {
        !            41:   switch (msg)
        !            42:   {
        !            43:     case WM_INITDIALOG:
        !            44:     {
        !            45:       BOOL bReturn;
        !            46:       char buf[BUFSIZE];
        !            47: 
        !            48:       //
        !            49:       // shove all the printer driver info in the list box
        !            50:       //
        !            51: 
        !            52:       SetCursor (LoadCursor (NULL, IDC_WAIT));
        !            53:       bReturn = DisplayPrinterDriverInfo (hwnd);
        !            54:       SetCursor (LoadCursor (NULL, IDC_ARROW));
        !            55: 
        !            56:       if (!bReturn)
        !            57:       {
        !            58:         EndDialog (hwnd, TRUE);
        !            59:       }
        !            60: 
        !            61:       //
        !            62:       // set window title to reflect current device
        !            63:       //
        !            64: 
        !            65:       else
        !            66:       {
        !            67:         sprintf (buf, "GetPrinterDriver: %s;%s;%s", gszDeviceName, gszPort,
        !            68:                  gszDriverName);
        !            69: 
        !            70:         SetWindowText (hwnd, (LPCSTR) buf);
        !            71:       }
        !            72: 
        !            73:       break;
        !            74:     }
        !            75: 
        !            76:     case WM_COMMAND:
        !            77: 
        !            78:       switch (LOWORD (wParam))
        !            79:       {
        !            80:         case DID_OK:
        !            81: 
        !            82:           EndDialog (hwnd, TRUE);
        !            83:           return 1;
        !            84:       }
        !            85:       break;
        !            86:   }
        !            87:   return 0;
        !            88: }
        !            89: 
        !            90: 
        !            91: 
        !            92: /******************************************************************************\
        !            93: *
        !            94: *  FUNCTION:    DisplayPrinterDriverInfo
        !            95: *
        !            96: *  INPUTS:      hwnd - handle of GetPrinterDriver dialog box
        !            97: *
        !            98: *  RETURNS:     TRUE if successful,
        !            99: *               FALSE otherwise
        !           100: *
        !           101: \******************************************************************************/
        !           102: 
        !           103: 
        !           104: BOOL DisplayPrinterDriverInfo (HWND hwnd)
        !           105: {
        !           106:   HANDLE        hPrinter;
        !           107:   DWORD         dwBytesNeeded;
        !           108:   DRIVER_INFO_1 *pDriverInfo1;
        !           109:   DRIVER_INFO_2 *pDriverInfo2;
        !           110:   char          buf[BUFSIZE];
        !           111:   char          pEnvironment[BUFSIZE] = "";
        !           112:   BOOL          bReturn = TRUE;
        !           113: 
        !           114:   //
        !           115:   // open selected printer & alloc buffers & get sundry info, close printer
        !           116:   //
        !           117: 
        !           118:   OpenPrinter (gszDeviceName, &hPrinter, NULL);
        !           119: 
        !           120:   if (!hPrinter)
        !           121:   {
        !           122:     char buf[BUFSIZE];
        !           123: 
        !           124:     sprintf (buf, "OpenPrinter (%s) failed", gszDeviceName);
        !           125:     ErrMsgBox ((LPCSTR) buf, ERR_MOD_NAME);
        !           126:     bReturn  = FALSE;
        !           127:     goto display_prt_drv_info_done1;
        !           128:   }
        !           129: 
        !           130:   GetPrinterDriver (hPrinter, pEnvironment, 1, NULL, 0, &dwBytesNeeded);
        !           131: 
        !           132:   //
        !           133:   // simple error checking, if these work assume rest will too
        !           134:   //
        !           135: 
        !           136:   if (!(pDriverInfo1 = (DRIVER_INFO_1 *) LocalAlloc (LPTR, dwBytesNeeded)))
        !           137:   {
        !           138:     ErrMsgBox ("LocalAlloc failed", ERR_MOD_NAME);
        !           139:     bReturn = FALSE;
        !           140:     goto display_prt_drv_info_done1;
        !           141:   }
        !           142: 
        !           143:   if (!GetPrinterDriver (hPrinter, pEnvironment, 1, (LPBYTE) pDriverInfo1,
        !           144:                          dwBytesNeeded, &dwBytesNeeded))
        !           145:   {
        !           146:     ErrMsgBox ("GetPrinterDriver failed", ERR_MOD_NAME);
        !           147:     bReturn = FALSE;
        !           148:     goto display_prt_drv_info_done2;
        !           149:   }
        !           150: 
        !           151:   GetPrinterDriver (hPrinter, pEnvironment, 2, NULL, 0, &dwBytesNeeded);
        !           152:   pDriverInfo2 = (DRIVER_INFO_2 *) LocalAlloc (LPTR, dwBytesNeeded);
        !           153:   GetPrinterDriver (hPrinter, pEnvironment, 2, (LPBYTE) pDriverInfo2,
        !           154:                     dwBytesNeeded, &dwBytesNeeded);
        !           155: 
        !           156:   ClosePrinter (hPrinter);
        !           157: 
        !           158:   //
        !           159:   // shove info in listbox
        !           160:   //
        !           161: 
        !           162:   sprintf (buf, gaDrvInfo[0]);
        !           163:   outstr();
        !           164: 
        !           165:   sprintf (buf, gaDrvInfo[1], pDriverInfo1->pName);
        !           166:   outstr();
        !           167: 
        !           168:   sprintf (buf, gaDrvInfo[2]);
        !           169:   outstr();
        !           170: 
        !           171:   sprintf (buf, gaDrvInfo[3], pDriverInfo2->cVersion);
        !           172:   outstr();
        !           173: 
        !           174:   sprintf (buf, gaDrvInfo[4], pDriverInfo2->pName);
        !           175:   outstr();
        !           176: 
        !           177:   sprintf (buf, gaDrvInfo[5], pDriverInfo2->pEnvironment);
        !           178:   outstr();
        !           179: 
        !           180:   sprintf (buf, gaDrvInfo[6], pDriverInfo2->pDriverPath);
        !           181:   outstr();
        !           182: 
        !           183:   sprintf (buf, gaDrvInfo[7], pDriverInfo2->pDataFile);
        !           184:   outstr();
        !           185: 
        !           186:   sprintf (buf, gaDrvInfo[8], pDriverInfo2->pConfigFile);
        !           187:   outstr();
        !           188: 
        !           189:   LocalFree (LocalHandle (pDriverInfo2));
        !           190: 
        !           191: display_prt_drv_info_done2:
        !           192: 
        !           193:   LocalFree (LocalHandle (pDriverInfo1));
        !           194: 
        !           195: display_prt_drv_info_done1:
        !           196: 
        !           197:   return bReturn;
        !           198: }

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