Microsoft KB Archive/175419

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HOWTO: Mark a Device Configured Through VendorInstaller DLL

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Q175419

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The information in this article applies to:


 * Microsoft Win32 Device Driver Kit (DDK) Windows 95

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SUMMARY
The registry key for the device being called is passed to the VendorInstaller code on its command line. A VendorInstaller should mark the devnode key as configured. The sample code below describes how to mark the devnode configured.

Sample Code
  extern "C" VOID PASCAL  ScheduleInstallation(HWND hwndParent,                               HINSTANCE hDllInst,                               LPSTR lpstrCmdLine, int nCmdShow) {      HKEY                  hkPlugNPlay; DWORD                dw0 = 0;

/*      We now truncate lpstrCmdLine so it holds just the registry key we       need. */

for  (LPSTR lpstrSource = lpstrCmdLine;              *lpstrSource && *lpstrSource != ' ';              lpstrSource++) ;      if    (*lpstrSource)  *lpstrSource++ ='\0';

if   (ERROR_SUCCESS != RegOpenKey(HKEY_LOCAL_MACHINE, lpstrCmdLine, &hkPlugNPlay)) {        return; }

if   (*lpstrSource) *(--lpstrSource) = ' ';  //  restore the blank

//   We must mark as installed now, so we don't do all //   this once more in the event of a reboot.

RegSetValueEx(hkPlugNPlay, "ConfigFlags", 0, REG_BINARY, (LPBYTE)          &dw0, sizeof DWORD); RegCloseKey(hkPlugNPlay);

BeginInstallation(hwndParent, hDllInst, lpstrCmdLine, nCmdShow); return; } Keywords :

Issue type : kbhowto

Technology : kbAudDeveloper kbWin95search kbWinDDKSearch kbWin32sSearch kbWin32DDK95 kbWin32DDKSearch