VC + + Basic class []---process related operations

 ①, ShellExecute for process creation, belongs to shell api://int iRet = (int) ShellExecute (m_hwnd, _t ("open"), _t ("NOTEPAD"). EXE "), _t (" C:\\123.txt "), NULL, sw_show), int iRet = (int) ShellExecute (m_hwnd, _t (" open "), _t (" C:\\windows\\notepad ". EXE "), _t (" C:\\123.txt "), NULL, sw_show); if (IRet >) { messagebox (_t (" Successful execution! "). "));} Else{ messagebox (_t ("Execution failed! "));}   NOTE: ShellExecute function can not only open files, but also open URLs and other things! The third file parameter can be unspecified, so the system will find the associated file to open according to the file type passed in by the third parameter:  ②, 16-bit system commonly used winexec API functions for process creation, in the 32-bit system in order to backward compatibility, so is also supported! WinExec is also relatively simple to use, only two parameters! It is important to note that the type of the first parameter is: lpcstr int iRet = 0;char *szpath = "C:\\windows\\notepad. EXE ";//char *szpath =" C:\\123.txt ";//char *szpath =" C:\\windows\\notepad. EXE c:\\123.txt "; iRet = WinExec (szpath, Sw_show), if (IRet >) { messagebox (_t (" Execution succeeded! "));} Else{ messagebox (_t ("Execution failed! "));}  ③, standard API functions CreateProcess process creation: Although there are many parameters, there are many parameters that can be set to NULL Note: The type of the second parameter is LPTSTR, there is no C, it is not a const type, so it means that the parameter is readable and writable!  tchar szpath[] = _t ("C:\\windows\\notepad. EXE c:\\123.txt ");  startUpinfo si = {0};si.cb = sizeof (SI); process_information pi = {0}; CreateProcess (NULL, szpath, NULL, NULL, FALSE, 0, NULL, NULL, &SI, &PI),//createprocess (null, _t ("c:\\windows\\ NOTEPAD. EXE c:\\123.txt "), NULL, NULL, FALSE, 0, NULL, NULL, &SI, &PI); Execution error CloseHandle (pi.hthread); CloseHandle (pi.hprocess);  A detailed explanation of the other parameters of the CreateProcess function, see: CreateProcess Chinese. Txt ④, End of process: ExitProcess end itself: ExitProcess (0),  ⑤, end of process: TerminateProcess end itself or other process: TerminateProcess ( GetCurrentProcess (), 0); To get the process handle of the other process, and to have process_terminate permission at the end of the other process! TerminateProcess is a "very yellow and violent" method to end the specified process, the resources of the target process is not released in time, although the operating system will help us release, but not a good practice!   1, find related data to see how to use the ShellExecuteEx function; 2, refer to "CreateProcess Chinese detailed". "Learn how to use other parameters of the CreateProcess function!  

VC + + Basic class []---process related operations