void CPCXDlg::OnReadDi() //read digital input port { char str[3]; UpdateData(TRUE);//get read di portno and cardno WORD DiData; m_ctl_cardno.GetLBText(m_cardno,str); ErrCode=W_Read_Di(atoi(str),m_readdi_portno,&DiData); // read digital input if(ErrCode != 0) { sprintf(MsgBuf,"Read Digital Input Failed ErrCode=%d",ErrCode); MessageBox(MsgBuf); //show error messagebox return; } sprintf (str,"2X",DiData&0xff);//show the read di data m_readback_readdi=str; UpdateData(FALSE); } 請問我想讓程式一直去跑這段~ 可是我加迴圈會當~該怎麼做呢?? QQ

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QQ

方法1: 用 Timer 每固定時間叫用一次 OnReadDi() 方法2: 在迴圈內加 Application->ProcessMessages() 如:

while(true)
{
  Application->ProcessMessages();
  OnReadDi();
}

http://www.ViewMove.com 視動自動化科技股份有限公司 ViewMove Technologies, Inc.

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http://www.ViewMove.com

引言: 方法1: 用 Timer 每固定時間叫用一次 OnReadDi() 方法2: 在迴圈內加 Application->ProcessMessages() 如:

while(true)
{
  Application->ProcessMessages();
  OnReadDi();
}

http://www.ViewMove.com 視動自動化科技股份有限公司 ViewMove Technologies, Inc.

方法3: 建立多執行緒(Windows強大功能怎能放著不用) ABCD分開看的懂，連起來像鬼劃符~~!!!