AfxBeginThread的问题

UINT CMyDlg::senddata(LPVOID pParam )
{ singllock->Lock();
Mysocket->Accept(sockRecv);
sockRecv.Send((char *)lpbuf,256,0);
singllock->Unlock();
//return 0;
}
UINT CMyDlg::receivedata(LPVOID pParam )
{singllock->Lock();
int i=sockRecv.Receive((char *)lpbuf,256,0);
CString str="";
for(int k=0;k<i;k++)
{str+=lpbuf[k];}
AfxMessageBox((char)i);
AfxMessageBox(str);
singllock->Unlock();
//return 0;
}void CMyDlg::beginthread()
{HWND handlwnd=GetSafeHwnd();
AfxBeginThread(receivedata,handlwnd,THREAD_PRIORITY_NORMAL,0,NULL);
AfxBeginThread(senddata,handlwnd,THREAD_PRIORITY_NORMAL,0,NULL);
}
我运行之后出现D:\Microsoft Visual Studio\MyProjects\ÊÓÆµÁÄÌìÏµÍ³\ÊÓÆµ·þÎñ¶ËÏµÍ³\ÊÓÆµ·þÎñ¶ËÏµÍ³Dlg.cpp(238) : error C2665: 'AfxBeginThread' : none of the 2 overloads can convert parameter 1 from type 'unsigned int (void *)'
D:\Microsoft Visual Studio\MyProjects\ÊÓÆµÁÄÌìÏµÍ³\ÊÓÆµ·þÎñ¶ËÏµÍ³\ÊÓÆµ·þÎñ¶ËÏµÍ³Dlg.cpp(239) : error C2665: 'AfxBeginThread' : none of the 2 overloads can convert parameter 1 from type 'unsigned int (void *)'
Error executing cl.exe.
这是为什么？

解决方案 »

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几个问题：
1。不要跨线程传递CSOCKET对象，改传SOCKET句柄
2。线程函数需为全局函数或类的静态成员函数
3。AfxBeginThread(（AFX_THREADPROC）receivedata,);
应该是参数不对，还有你的senddata，receivedata函数不应该是成员函数，应该是全局函数或者静态的成员函数。以senddata为例：
UINT senddata(LPVOID pParam )
{
    singllock->Lock();
    Mysocket->Accept(sockRecv);
    sockRecv.Send((char *)lpbuf,256,0);
    singllock->Unlock();
}AfxBeginThread(senddata,LPVOID(Mysocket), THREAD_PRIORITY_NORMAL,0, NULL );
UINT senddata(LPVOID pParam )
{ SOCKET mytwosocket=(SOCKET)pParam;
CSocket mysocket;
mysocket.Attach(mytwosocket);
CMutex Mutex(TRUE,NULL,NULL);
CSingleLock singllock(&Mutex,TRUE);
singllock.Lock();
char lpbuf[256];
mysocket.Send(lpbuf,256,0);
singllock.Unlock();
return 0;
}
UINT receivedata(LPVOID pParam )
{ CString str="";
CMutex Mutex(TRUE,NULL,NULL);
CSingleLock singllock(&Mutex,TRUE);
singllock.Lock();
SOCKET mytwosocket=(SOCKET)pParam;
CSocket mysocket;
mysocket.Attach(mytwosocket);
char lpbuf[256];
int i=recv ( mytwosocket,lpbuf,256,0);
//int i=mysocket.Receive(lpbuf,256,0);
for(int k=0;k<i;k++)
{str+=lpbuf[k];}
singllock.Unlock();
//AfxMessageBox((char)i);
Sleep(1000);
AfxMessageBox(str);
// GetChCPStatus RefreshStatus
return 0;
}
void CMyDlg::beginthread()
{//HWND  handlwnd=GetSafeHwnd();
AfxBeginThread((AFX_THREADPROC)receivedata,(LPVOID)mytosocket,THREAD_PRIORITY_NORMAL,0,NULL);
}void CMyDlg::OnCancel()
{//int kk=sockRecv.Send((char *)lpbuf,256,0);
// TODO: Add extra cleanup here
AfxBeginThread((AFX_THREADPROC)senddata,(LPVOID)mytosocket,THREAD_PRIORITY_NORMAL,0,NULL);
// CDialog::OnCancel();
}
编译和运行时都没出错，但在接收数据时总不能接收完。