d181.bmp.txt

Visual C++通信编程实例

{
    if( SUCCEEDED(errors[indexl))
    {
    Item* pltem= (Item*)clienthandles[indexl;
    if( pltem)
    {
    pltem->value= values[indexl;
    pltem->quality - quality[indexl;
    pltem->timestamp= time[indexl;
    )
  }//value. quality. time分别对应index个数据的三个属性。
)
PostMessage(*theMsgValue, WM.  OPCDATA,0，0);11 WM_OPCDATA对应视图中接收到的消息。
retum S_OK;
// Called by the server to complete an ASyncI02::Read
STDMETHODIMP OPCCallback::OnReadComplete(
                            DWORD     Transid,
                        OPCHANDLE  grphandle,
                        HRESULT   masterquality,
                          HRESULT   mastererror,
                            DWORD     count,
                                                                          OPCHANDLE * clienthandles,
                                                                          VARIANT     * values,
                              WORD     *quality, .
                            FILETIME *time,
                                . HRESULT  *errors)
{
        ASSERT( Transid = 3 ); // test only
        for( DWORD index=0; index<count; index++ )
      {
           if( SUCCEEDED(errors[indexl》
              {
                Item* pltem = (Item木)clienthandles[indexl;
                  if( pltem )
                   {
                    pltem->value = values[indexl;
                    pltem->quality = quality[indexl;
                    pltem->timestamp = time[indexl;
            .}
      }
      PostMessage(*theMsgValue, WM_OPCDATA, 0, 0);
    retum S_OK;
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