CreateProcess执行控制台程序,并获取输出

#include <Windows.h>

#define MY_PIPE_BUFFER_SIZE 1024

void StartProcess(LPCWSTR program, LPCWSTR args)
{
	//初始化管道
	HANDLE hPipeRead;
	HANDLE hPipeWrite;
	SECURITY_ATTRIBUTES saOutPipe;
	::ZeroMemory(&saOutPipe, sizeof(saOutPipe));
	saOutPipe.nLength = sizeof(SECURITY_ATTRIBUTES);
	saOutPipe.lpSecurityDescriptor = NULL;
	saOutPipe.bInheritHandle = TRUE;
	if (CreatePipe(&hPipeRead, &hPipeWrite, &saOutPipe, MY_PIPE_BUFFER_SIZE))
	{
		PROCESS_INFORMATION processInfo;
		::ZeroMemory(&processInfo, sizeof(processInfo));
		STARTUPINFO startupInfo;
		::ZeroMemory(&startupInfo, sizeof(startupInfo));
		startupInfo.cb = sizeof(STARTUPINFO);
		startupInfo.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
		startupInfo.hStdOutput = hPipeWrite;
		startupInfo.hStdError = hPipeWrite;
		startupInfo.wShowWindow = SW_HIDE;

		if (::CreateProcessW(program, (LPWSTR)args,
			NULL,  // process security
			NULL,  // thread security
			TRUE,  //inheritance
			0,     //no startup flags
			NULL,  // no special environment
			NULL,  //default startup directory
			&startupInfo,
			&processInfo))
		{
			if (WAIT_TIMEOUT != WaitForSingleObject(processInfo.hProcess, 3000))
			{
				DWORD dwReadLen = 0;
				DWORD dwStdLen = 0;
				if (PeekNamedPipe(hPipeRead, NULL, 0, NULL, &dwReadLen, NULL) && dwReadLen > 0)
				{
					char szPipeOut[MY_PIPE_BUFFER_SIZE];
					::ZeroMemory(szPipeOut, sizeof(szPipeOut));
					if (ReadFile(hPipeRead, szPipeOut, dwReadLen, &dwStdLen, NULL))
					{
						// 输出值
						int k = 0;
					}
					int a = 1;
				}
			}		
		}
		if (processInfo.hProcess)
		{
			CloseHandle(processInfo.hProcess);
		}
		if (processInfo.hThread)
		{
			CloseHandle(processInfo.hThread);
		}
	}
	CloseHandle(hPipeRead);
	CloseHandle(hPipeWrite);
}

参考文档:
https://blog.csdn.net/explorer114/article/details/79951972