我在一个进程A中调用另一个进程B，我想等B执行完后再执行A，怎么做？

[lovesun]

???????????????????

[masterz]

PROCESS_INFORMATION pi;
STARTUPINFO si;
si.cb = sizeof(STARTUPINFO);
si.lpReserved = NULL;
si.lpDesktop = NULL;
si.lpTitle = NULL;
si.dwFlags = 0;
si.cbReserved2 = 0;
si.lpReserved2 = NULL;
BOOL bres = CreateProcess(NULL,"test a.txt b.txt",NULL,NULL,false,
NORMAL_PRIORITY_CLASS,
NULL,NULL,&si,&pi);
if(bres==false)
{
AfxMessageBox("CreateProcess failed");
}
else
{
CloseHandle(pi.hThread);
DWORD dwret=WaitForSingleObject(pi.hProcess, 1000*30);
switch(dwret)
{
case WAIT_OBJECT_0:
DWORD dwexitcode;
bres = GetExitCodeProcess(pi.hProcess,&dwexitcode);
TCHAR exitmsgbuf[1024];
if(bres)
{
wsprintf(exitmsgbuf,"exit code:%d",dwexitcode);
}
else
wsprintf(exitmsgbuf,"exit code failed to return");

AfxMessageBox(exitmsgbuf);
break;
default:
AfxMessageBox("exit for other reason");
}
CloseHandle(pi.hProcess);
}

[Tipel]

进程A等待中
0A进程B执行完毕传回一个信号给进程A
进程A受到信号继续
使用进程间通信即可

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