Getexitcodeprocess Error Codes
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Getexitcodeprocess Returns 2
the company Business Learn more about hiring developers or posting ads with us Stack createprocess getexitcodeprocess example Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of terminateprocess example 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to get a sub-process' return code up vote 7 down vote favorite 2 What is the method https://msdn.microsoft.com/en-us/library/windows/desktop/ms683189(v=vs.85).aspx of getting the return value from spawning a sub-process within windows? It looks like ShellExecute() is simpler to use than is CreateProcess(), but from the reading I've done thus far, neither indicate how to check the return value of the spawned process. How is that done? Thanks, Andy c++ winapi share|improve this question edited Feb 20 '12 at 23:17 hmjd 88.8k8115178 asked Feb 20 '12 at 23:09 Andrew Falanga 7901029 add a http://stackoverflow.com/questions/9369823/how-to-get-a-sub-process-return-code comment| 2 Answers 2 active oldest votes up vote 15 down vote accepted To acquire the exit code of a process on Windows you can use GetExitCodeProcess(). Example application that accepts the process id as an argument and waits for five seconds for it to complete and then acquires its exit code: int main(int a_argc, char** a_argv) { int pid = atoi(*(a_argv + 1)); HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION, FALSE, pid); if (NULL != h) { WaitForSingleObject(h, 5000); // Change to 'INFINITE' wait if req'd DWORD exit_code; if (FALSE == GetExitCodeProcess(h, &exit_code)) { std::cerr << "GetExitCodeProcess() failure: " << GetLastError() << "\n"; } else if (STILL_ACTIVE == exit_code) { std::cout << "Still running\n"; } else { std::cout << "exit code=" << exit_code << "\n"; } CloseHandle(h); } else { std::cerr << "OpenProcess() failure: " << GetLastError() << "\n"; } return 0; } share|improve this answer edited May 8 '14 at 10:30 answered Feb 20 '12 at 23:12 hmjd 88.8k8115178 3 Thank you. This is what I was looking for. Looks like I'll have to use CreateProcess() to start this thing. That function fills a PROCESS_INFORMATION structure that has the HANDLE I need for use with GetExitCodeProcess(). –Andrew Falanga Feb 21 '12 at 17:01 When you are finished with the ha
Forum Visual C++ & C++ Programming Visual C++ Programming CreateProcess() and GetExitCodeProcess() If this is your first visit, be sure to check http://forums.codeguru.com/showthread.php?91633-CreateProcess()-and-GetExitCodeProcess() out the FAQ by clicking the link above. You may have to register http://www.pocketmagic.net/createprocess-application-crash/ or Login before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 6 of 6 Thread: CreateProcess() and GetExitCodeProcess() Tweet Thread Tools Show Printable Version Email this Page… Subscribe to exit code this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode May 4th, 2000,04:32 PM #1 PeterK View Profile View Forum Posts Member + Join Date May 1999 Location Wisconsin, USA Posts 953 CreateProcess() and GetExitCodeProcess() Okay, what am I trying to accomplish is to have one EXE start up a second EXE. That is easy enough. However the first getexitcodeprocess error codes EXE (the application which calls the other application) must know if the called application completed successfully or not. How is this accomplished? I know how to call the second EXE and how to wait until it is finished. I also know how to call GetExitCodeProcess(). if (CreateProcess((LPCTSTR)lpszProgramName, commandline, NULL, NULL, FALSE, NORMAL_PRIORITY_CLASS, NULL, NULL, &suInfo, &procInfo) == 0) { CString tmpStr; tmpStr.Format("Error executing %s", lpszProgramName); MyShowLastError("StmtDesigner", tmpStr, commandline, GetLastError()); } else { CloseHandle(procInfo.hThread); WaitForSingleObject(procInfo.hProcess, INFINITE); DWORD exitCode=0; if (GetExitCodeProcess(procInfo.hProcess, &exitCode)) { // successfully retrieved exit code } CloseHandle(procInfo.hProcess); } However where I am confused is... How do I know what the value stored in exitCode will be? Is there a SUCCESS value? If an error occurred in the second EXE what value will be returned in exitCode? Do I have to set something up in the second EXE so it returns what I want it to? I read the on-line help for GetExitCodeProcess() but I'm not really understanding what needs to be done. Currently my second EXE should be failing (coded to fail) and exitCode is being set to 128, any idea what 128 is?
introduction Blog options Log in Entries RSS Comments RSS WordPress.org Online Goodies CreateProcess, GetExitCodeProcess and application crash Recently I've been working on a C++ app that needed to start a second app and catch its exit code. The exit code is the number returned by main() or WinMain() at the application exit point. The two apps I'm using are Starter.exe and WMLoader.exe (that gets executed by the first). WMLoader is a very basic console application that only returns an error code (for testing purposes) #include "stdafx.h" int _tmain(int argc, _TCHAR* argv[]) { return 11; } To receive the exit code 11 in Starter.exe I need to: 1) call CreateProcess to start WMLoader.exe 2) WaitForSingleObject to wait until WMLoader terminates 3) call GetExitCodeProcess to get the exit code. My inital code was: DWORD code; STARTUPINFO si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); if (!CreateProcess(NULL, L"WMLoader.exe", NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi)) { printf("CreateProcess() failed: %d\n", GetLastError()); exit(1); } if (WaitForSingleObject(pi.hProcess, INFINITE) == WAIT_FAILED) { printf("WaitForSingleObject() failed: %d\n", GetLastError()); exit(1); } if (!(GetExitCodeProcess(pi.hProcess, &code))) { printf("GetExitCodeProcess() failed: %d\n", GetLastError()); exit(1); } printf("code=%d", code); This resulted in Starter.exe crash with the following message: After wasting a few minutes double checking everything, I found the problem. From MSDN, CreateProcess page: pszCmdLine [in, out] Pointer to a null-terminated string that specifies the command line to execute. The system adds a null character to the command line, trimming the string if necessary, to indicate which file was used. Meaning you can't use a constant for pszCmdLine. I've also modified the code to start the second process in SUSPENDED mode and resume it after the successful CreateProcess call: STARTUPINFO si;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si); PROCESS_INFORMATION pi; ZeroMemory(&pi, sizeof(pi)); TCHAR szFile[MAX_PATH] = TEXT("WMLoader.exe"); if(!CreateProcess( NULL, // No module name (use command line). szFile, NULL, // Process handle not inheritable. NULL, // Thread handle not inheritable. FALSE, // Set handle inheritance to FALSE. CREATE_SUSPENDED, // Create suspended. NULL, // Use parent's environment block. NULL, // Use parent's starting directory. &si, // Pointer to STARTUPINFO structure. &pi)) // Pointer to PROCESS_INFORMATION structure. { // Handle error. printf("Createprocess failed (%d).\n", GetLastError()); } else { // Resume the