利用管道获取控制台程序的标准输出

1.该程序调用控制台程序hello.exe，通过管道获取到hello.exe的标准输出数据，并打印到当前程序的标准输出。

#include <Windows.h>
#include <iostream>
#include <string>

using namespace std;

void invoke(string exe);

int main(int argc, char* argv[])
{
	string exe = "hello.exe";
	invoke(exe);
	return 0;
}


void invoke(string exe)
{
	SECURITY_ATTRIBUTES saPipe; 
        saPipe.nLength = sizeof(SECURITY_ATTRIBUTES);
        saPipe.lpSecurityDescriptor = NULL;
        saPipe.bInheritHandle = TRUE;
	
	HANDLE hReadPipe, hWritePipe;
	BOOL bSuccess = CreatePipe(&hReadPipe, 
		&hWritePipe, 
		&saPipe, 
		0);  
	if(!bSuccess) 
		return ;
	
	PROCESS_INFORMATION pi; 
	STARTUPINFO si; 
        memset(&si,0,sizeof(si)); 
        si.hStdInput=hReadPipe;
        si.hStdOutput=hWritePipe;
        si.dwFlags=STARTF_USESTDHANDLES;
        si.cb=sizeof(si); 
	
	if(CreateProcess(NULL,(char*)exe.c_str(),NULL,NULL,TRUE,0,NULL,NULL,&si,&pi))
	{
		CloseHandle(pi.hThread);   	
		const int max = 500;
		char buf[max] = {0};
		DWORD dw;
		
		if(ReadFile(hReadPipe,buf,max-1,&dw,NULL))
		{
			cout<<buf<<endl;
//			ZeroMemory(buf,max);
		}
		
		CloseHandle(pi.hProcess);   
	}
	
	CloseHandle(hReadPipe);
	CloseHandle(hWritePipe);
}

2. hello.exe的主代码

#include <stdio.h>

void main()
{
	printf("hello!\n");
}

利用管道获取控制台程序的标准输出

原文：http://blog.csdn.net/libinjlu/article/details/43026987