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定时器部分:
void CMainFrame::OnTimer(UINT nIDEvent) //控制接收多长时间没有数据显示通讯错
{
// TODO: Add your message handler code here and/or call default
switch(nIDEvent)
{
case 1: //接收
{
//m_Port.OpenPort();
//DoModal.
if (timer<10)//在这里可以通过通讯具体时间赋给相应的等待的时间
{
timer+=1;
}
else
{
timer=0;
KillTimer(1);
KillTimer(2);
m_Port.ClosePort();
::SetEvent(m_handle);
HWND hwnd=::FindWindow(NULL,"模态对话框");
if(hwnd!=NULL)
{
::SendMessage(hwnd,7788,0,0);
}
MessageBox("\n通讯超时! \n","错误",MB_OK|MB_ICONSTOP);
OnChangeview(1);
m_nBaud=115200;
m_cParity='N';
m_nDatabits=8;
m_nStopbits=1;
m_dwCommEvents = EV_RXFLAG | EV_RXCHAR;
CString strStatus;
if (m_Port.InitPort(this, m_nCom, m_nBaud,m_cParity,m_nDatabits,m_nStopbits,m_dwCommEvents,512))
{
m_Port.StartMonitoring();
strStatus.Format("STATUS:COM%d OPENED,%d,%c,%d,%d",m_nCom, m_nBaud,m_cParity,m_nDatabits,m_nStopbits);
}
else
{
AfxMessageBox("\n没有发现此串口或此串口被占用!\n\n");
}
CWinThread *pThread;
pThread=AfxBeginThread(ThreadFunc123,this);
sendthread_id=pThread->m_nThreadID; //线程ID
// m_handle=::CreateEvent(NULL,FALSE,FALSE,NULL);
}
CFrameWnd::OnTimer(nIDEvent);
break;
}
}
}
线程处理函数
UINT ThreadFunc123(LPVOID Param)
{
// HWND hwndTemp = (HWND)(Param);
CMainFrame *hwndTemp=(CMainFrame*)(Param);
MSG msg;
HWND hwnd;
hwnd=AfxGetMainWnd()->m_hWnd;
while(GetMessage(&msg,0,0,0))
{
SetTimer(hwnd,1,1,NULL);
switch(msg.message)
{
case WM_SENDDTAT:
{
receive_over=FALSE;
int len1=CPublic::Str2Hex("02 13 b0 00 00 00 00 00",(UCHAR*)data);
m_Port.WriteToPort(data,len1);
while(receive_over==FALSE);
int len2=CPublic::Str2Hex("30 00 14 00 00 00 00 00",(UCHAR*)data);
m_Port.WriteToPort(data,len2);
while(receive_over==FALSE);
::SetEvent(m_handle);
break;
}
default:
break;
}
}
return 0;
}