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Annotation of ntddk/src/mmedia/synth/dll/config.c, revision 1.1

1.1     ! root        1: /****************************************************************************
        !             2:  *
        !             3:  *   config.c
        !             4:  *
        !             5:  *   Copyright (c) 1991 Microsoft Corporation.  All Rights Reserved.
        !             6:  *
        !             7:  ***************************************************************************/
        !             8: 
        !             9:  #include <windows.h>
        !            10:  #include <mmsystem.h>
        !            11:  #include <soundcfg.h>
        !            12:  #include "driver.h"
        !            13:  #include "registry.h"
        !            14:  #include <stdarg.h>
        !            15:  #include "config.h"
        !            16: 
        !            17:  #define BUILD_NUMBER L"1.00"
        !            18: 
        !            19: #if DBG
        !            20:  WCHAR STR_CRLF[] = L"\r\n";
        !            21:  WCHAR STR_SPACE[] = L" ";
        !            22:  WORD wDebugLevel = 0;
        !            23: #endif
        !            24: 
        !            25: /*
        !            26:  *  Globals
        !            27:  */
        !            28: 
        !            29:  HMODULE ghModule;
        !            30:  REG_ACCESS RegAccess;
        !            31: 
        !            32:  //
        !            33:  // Configuration data
        !            34:  //
        !            35: 
        !            36:  WCHAR gszHelpFile[] = STR_HELPFILE;
        !            37: 
        !            38: /** void FAR cdecl AlertBox(HWND hwnd, UINT wStrId, ...)
        !            39:  *
        !            40:  *  DESCRIPTION:
        !            41:  *
        !            42:  *
        !            43:  *  ARGUMENTS:
        !            44:  *      (HWND hwnd, UINT wStrId, ...)
        !            45:  *
        !            46:  *  RETURN (void FAR cdecl):
        !            47:  *
        !            48:  *
        !            49:  *  NOTES:
        !            50:  *
        !            51:  ** cjp */
        !            52: 
        !            53: void AlertBox(HWND hwnd, UINT wStrId, ...)
        !            54: {
        !            55:     WCHAR    szAlert[50];
        !            56:     WCHAR    szFormat[128];
        !            57:     WCHAR    ach[512];
        !            58:     va_list  va;
        !            59: 
        !            60: 
        !            61:     LoadString(ghModule, SR_ALERT, szAlert, sizeof(szAlert));
        !            62:     LoadString(ghModule, wStrId, szFormat, sizeof(szFormat));
        !            63:     va_start(va, wStrId);
        !            64:     wvsprintf(ach, szFormat, va);
        !            65:     va_end(va);
        !            66: 
        !            67:     MessageBox(hwnd, ach, szAlert, MB_ICONINFORMATION | MB_OK);
        !            68: } /* AlertBox() */
        !            69: 
        !            70: /*
        !            71:  * load the kernel driver and tell the user we are loaded
        !            72:  */
        !            73: int DrvInstall(void)
        !            74: {
        !            75:     if (DrvCreateServicesNode(STR_DRIVERNAME, SoundDriverTypeSynth, &RegAccess,
        !            76:                               TRUE)) {
        !            77:         if (DrvIsDriverLoaded(&RegAccess) ||
        !            78:             DrvLoadKernelDriver(&RegAccess)) {
        !            79:             DrvCreateParamsKey(&RegAccess);
        !            80:             return(DRV_RESTART);
        !            81:         } else {
        !            82: 
        !            83:            /*
        !            84:             *  If the kernel driver fails to load we don't want to
        !            85:             *  leave the services node entry lying around.
        !            86:             */
        !            87: 
        !            88:             DrvDeleteServicesNode(&RegAccess);
        !            89:         }
        !            90:     }
        !            91: 
        !            92:     DrvCloseServiceManager(&RegAccess);
        !            93: 
        !            94:     return(DRV_CANCEL);
        !            95: 
        !            96: 
        !            97: }
        !            98: 
        !            99: /*************************************************************************
        !           100: DlgAboutProc - dialog box for the "About" option.
        !           101: 
        !           102: standard windows
        !           103: */
        !           104: 
        !           105: int DlgAboutProc (HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
        !           106: {
        !           107: 
        !           108:     switch (message){
        !           109:         case WM_INITDIALOG:
        !           110:                 SetDlgItemText(hDlg, IDD_TXT_VERSION, BUILD_NUMBER);
        !           111:                 return TRUE;
        !           112:         case WM_COMMAND:
        !           113:             switch (wParam){
        !           114:                 case IDOK:
        !           115:                     EndDialog(hDlg,0);
        !           116:                     return TRUE;
        !           117:             }
        !           118:             break;
        !           119:     }
        !           120:     return FALSE;
        !           121: }
        !           122: 
        !           123: 
        !           124: /***************************************************************************/
        !           125: 
        !           126: LRESULT ConfigRemove(HWND hDlg)
        !           127: {
        !           128:     BOOL Deleted;
        !           129: 
        !           130:     //
        !           131:     // Access the services node
        !           132:     //
        !           133: 
        !           134:     if (DrvCreateServicesNode(STR_DRIVERNAME, SoundDriverTypeSynth, &RegAccess,
        !           135:                               FALSE)) {
        !           136: 
        !           137:         //
        !           138:         // Try to unload the driver
        !           139:         //
        !           140: 
        !           141:         DrvUnloadKernelDriver(&RegAccess);
        !           142: 
        !           143:         //
        !           144:         // Remove the driver entry from the registry
        !           145:         //
        !           146:         // Note - the user should normally restart because (for instance)
        !           147:         // the dll will remain loaded on all processes linked to winmm until
        !           148:         // restart so no new version will be installable.
        !           149:         //
        !           150: 
        !           151:         Deleted = DrvDeleteServicesNode(&RegAccess);
        !           152:     } else {
        !           153:         Deleted = TRUE;
        !           154:     }
        !           155: 
        !           156:     //
        !           157:     // Make sure we've freed all our registry handles
        !           158:     //
        !           159: 
        !           160:     DrvCloseServiceManager(&RegAccess);
        !           161: 
        !           162:     if (!Deleted) {
        !           163: 
        !           164:         //
        !           165:         // Tell the user there's a problem
        !           166:         //
        !           167: 
        !           168:         AlertBox(hDlg, SR_ALERT_FAILREMOVE);
        !           169: 
        !           170:         return DRVCNF_CANCEL;
        !           171:     } else {
        !           172:         return DRVCNF_RESTART;
        !           173:     }
        !           174: }
        !           175: 

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