第十七课（续）

 

void CNamedPipeSrvView::OnPipeCreate()

{

// TOD Add your command handler code here

hPipe=CreateNamedPipe(".//pipe//MyPipe",

PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,

0,1,1024,1024,0,NULL);

if(INVALID_HANDLE_VALUE==hPipe)

{

MessageBox("创建命名管道失败！");

hPipe=NULL;

return;

}

HANDLE hEvent;

hEvent=CreateEvent(NULL,TRUE,FALSE,NULL);

if(!hEvent)

{

MessageBox("创建事件对象失败！");

CloseHandle(hPipe);

hPipe=NULL;

return;

}

OVERLAPPED ovlap;

ZeroMemory(&ovlap,sizeof(OVERLAPPED));

ovlap.hEvent=hEvent;

if(!ConnectNamedPipe(hPipe,&ovlap))

{

if(ERROR_IO_PENDING!=GetLastError())

{

   MessageBox("等待客户端连接失败！");

   CloseHandle(hPipe);

   CloseHandle(hEvent);

   hPipe=NULL;

   return;

}

}

if(WAIT_FAILED==WaitForSingleObject(hEvent,INFINITE))

{

MessageBox("等待对象失败！");

CloseHandle(hPipe);

CloseHandle(hEvent);

hPipe=NULL;

return;

}

CloseHandle(hEvent);

}

void CNamedPipeSrvView::OnPipeRead()

{

// TOD Add your command handler code here

char buf[100];

DWORD dwRead;

if(!ReadFile(hPipe,buf,100,&dwRead,NULL))

{

MessageBox("读取数据失败！");

return;

}

MessageBox(buf);

}

void CNamedPipeSrvView::OnPipeWrite()

{

// TOD Add your command handler code here

char buf[]="http://www.sunxin.org";

DWORD dwWrite;

if(!WriteFile(hPipe,buf,strlen(buf)+1,&dwWrite,NULL))

{

MessageBox("写入数据失败！");

return;

}

}