C中调用带参数的exe并接收返回值

test.exe

#include<stdio.h>
#include<string.h>
int main(int argc, char* argv[])
{
 return 0;
}

 获取test.exe的返回值

#include "stdafx.h"
#include "windows.h"
int main(int argc, char* argv[])
{
    DWORD    dwExitCode = -1;

    STARTUPINFO si;
    PROCESS_INFORMATION pi;

    ZeroMemory( &si, sizeof(si) );
    si.cb = sizeof(si);
    ZeroMemory( &pi, sizeof(pi) );

    // Start the child process.
    if( !CreateProcess( "E://test.exe", // an exe file.
        "hello.txt",        // parameter for your exe file.
        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.
        &si,              // Pointer to STARTUPINFO structure.
        &pi )             // Pointer to PROCESS_INFORMATION structure.
        )
    {
        MessageBox(NULL, "CreateProcess failed.","ERROR",NULL );
    }

    // Wait until child process exits.
    WaitForSingleObject( pi.hProcess, INFINITE );

    GetExitCodeProcess(pi.hProcess,&dwExitCode);

    printf("Exit code : %d/n",dwExitCode);

    // Close process and thread handles.
    CloseHandle( pi.hProcess );
    CloseHandle( pi.hThread );

    return 0;

}