WIN32 子进程继承父进程消息句柄

// 消息句柄继承.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <WINDOWS.H>

int main(int argc, char* argv[])
{
    SECURITY_ATTRIBUTES sa;
    sa.nLength = sizeof(sa);
    sa.lpSecurityDescriptor = NULL;
    sa.bInheritHandle = TRUE;
    char s1[50] = {0};
    char s2[255] = {0};
    HANDLE g_Event = CreateEvent(&sa,TRUE,FALSE,NULL);
    sprintf(s1,"%x",g_Event);
    sprintf(s2,"F:/zzz.exe %s",s1);


    STARTUPINFOA si;
    PROCESS_INFORMATION pi;
    ZeroMemory(&si, sizeof(si));
    si.cb = sizeof(si);
    ZeroMemory(&pi, sizeof(pi));
    
    //si.dwFlags = STARTF_USESHOWWINDOW;  // 指定wShowWindow成员有效
    //si.wShowWindow = TRUE;          // 此成员设为TRUE的话则显示新建进程的主窗口，

    BOOL res = CreateProcess(NULL,s2,NULL,NULL,TRUE,CREATE_NEW_CONSOLE,NULL,NULL,&si,&pi);
    if (!res)
    {
        DWORD dwcode = GetLastError();
        printf("%x\n",dwcode);
    }
    
    SetEvent(g_Event);

    CloseHandle(g_Event);

    
        
    getchar();
    printf("Hello World!\n");
    return 0;
}

// zzz.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <windows.h>

int main(int argc, char* argv[])
{
    char st1[50] = {0};
    char st2[50] = {0};
    DWORD g = 0;

    sprintf(st1,"%s",argv[1]);
    sscanf(st1,"%x",&g);
    printf("%s\n",argv[0]);
    printf("%x\n",g);

    HANDLE g_e = HANDLE(g);
    printf("等待消息中。。。。\n");
    WaitForSingleObject(g_e,INFINITE);

    DWORD dwcode = GetLastError();

    printf("等到消息。。。。%x\n",dwcode);

    getchar();
    return 0;
}