MyExec, calls CreateProcess, waits for completion. WinBase

Revision: 13845

at May 7, 2009 15:42 by jimfred

Initial Code

static void MyExec( LPCSTR cmdArg, LPCSTR cwdArg )
{
   STARTUPINFO         si = {sizeof(STARTUPINFO)};
   PROCESS_INFORMATION pi = {0};

   BOOL bOk = CreateProcess(
      NULL,   // No module name (use command line)
      (LPSTR)cmdArg, // Command line
      NULL,   // Process handle not inheritable
      NULL,   // Thread handle not inheritable
      FALSE,  // Set handle inheritance to FALSE
      0,      // No creation flags
      NULL,   // Use parent's environment block
      (LPSTR)cwdArg,   // Use parent's starting directory 
      &si,    // Pointer to STARTUPINFO structure
      &pi     // Pointer to PROCESS_INFORMATION structure
   );

   // Wait until child process exits.
   WaitForSingleObject( pi.hProcess, INFINITE );

   // Close process and thread handles. 
   CloseHandle( pi.hProcess );
   CloseHandle( pi.hThread );

   if ( bOk ) { return; }

   CString s;
   s.Format( "Unable to execute '%s'", cmdArg );
   MessageBox( NULL, s, APP_NAME, 0 );
   exit(-1);
}

Initial URL

Initial Description

I occasionally need a WinExec function the synchronously executes a command. cwdArg may be null. 

This example, upon error, pops-up a dialog and exits the app. This is useful for small installation utilities.

non-dot.net, with or without MFC.

Initial Title

MyExec, calls CreateProcess, waits for completion. WinBase

Initial Tags

windows

Initial Language

C++

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