CreateProcess function

最新推荐文章于 2024-05-05 16:08:09 发布

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最新推荐文章于 2024-05-05 16:08:09 发布

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分类专栏： C++

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本文提供了一个使用C++和Windows API函数CreateProcess来启动新进程的例子。代码展示了如何设置STARTUPINFO和PROCESS_INFORMATION结构，并处理可能发生的错误。

创建线程：https://msdn.microsoft.com/en-us/library/windows/desktop/ms682516(v=vs.85).aspx

创建进程MSDN参考：https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425(v=vs.85).aspx

#include <windows.h>
#include <stdio.h>
#include <tchar.h>

void _tmain( int argc, TCHAR *argv[] )
{
    STARTUPINFO si;
    PROCESS_INFORMATION pi;

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

    if( argc != 2 )
    {
        printf("Usage: %s [cmdline]\n", argv[0]);
        return;
    }

    // Start the child process. 
    if( !CreateProcess( NULL,   // No module name (use command line)
        argv[1],        // Command line
        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
    ) 
    {
        printf( "CreateProcess failed (%d).\n", GetLastError() );
        return;
    }

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

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