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    <p>It might not work correctly when using a program that is not attached to the console, because that app might still be running while you think you have the exit code. A solution to do it in C++ looks like below:</p> <pre class="lang-c prettyprint-override"><code>#include "stdafx.h" #include "windows.h" #include "stdio.h" #include "tchar.h" #include "stdio.h" #include "shellapi.h" int _tmain( int argc, TCHAR *argv[] ) { CString cmdline(GetCommandLineW()); cmdline.TrimLeft('\"'); CString self(argv[0]); self.Trim('\"'); CString args = cmdline.Mid(self.GetLength()+1); args.TrimLeft(_T("\" ")); printf("Arguments passed: '%ws'\n",args); STARTUPINFO si; PROCESS_INFORMATION pi; ZeroMemory( &amp;si, sizeof(si) ); si.cb = sizeof(si); ZeroMemory( &amp;pi, sizeof(pi) ); if( argc &lt; 2 ) { printf("Usage: %s arg1,arg2....\n", argv[0]); return -1; } CString strCmd(args); // Start the child process. if( !CreateProcess( NULL, // No module name (use command line) (LPTSTR)(strCmd.GetString()), // 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 NULL, // Use parent's starting directory &amp;si, // Pointer to STARTUPINFO structure &amp;pi ) // Pointer to PROCESS_INFORMATION structure ) { printf( "CreateProcess failed (%d)\n", GetLastError() ); return GetLastError(); } else printf( "Waiting for \"%ws\" to exit.....\n", strCmd ); // Wait until child process exits. WaitForSingleObject( pi.hProcess, INFINITE ); int result = -1; if(!GetExitCodeProcess(pi.hProcess,(LPDWORD)&amp;result)) { printf("GetExitCodeProcess() failed (%d)\n", GetLastError() ); } else printf("The exit code for '%ws' is %d\n",(LPTSTR)(strCmd.GetString()), result ); // Close process and thread handles. CloseHandle( pi.hProcess ); CloseHandle( pi.hThread ); return result; } </code></pre>
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