d182.bmp.txt

Visual C++通信编程工程实例精解(附盘)

// Called by the server to complete an ASyncI02::Write
STDMETHODIMP OPCCallback::OnWriteComplete(
                            DWORD     Transid,
                         OPCHANDLE  grphandle,
                                                                                                                                                                         HRES ULT                   mastererr,
                            DWORD     count,
                                                                           OPCHANDLE * clienthandles,
                                                                   HRESULT     * errors)
 {
        ASSERT( Transid - 2 ); // test only
        for( DWORD index=0; index<count; index++ )
       {
           if( FAILED(errors[indexl》
             {
                 Item* pltem = (Item*)clienthandles[index];
                   PostMessage(*theMsgValue, WM_OPCWRITE, errors[index], 0);
             }
       }
     retum S_OK;
 }
／／幸木扣#木年半木水水术水枣木水水枣木籼#木术枣木书水串半木半半卡枣木枣木枣木术籼-籼B水丰水木半半水半籼#木木水水术木串半水枣枣木水术水水枣水半木
//Called by the server to complete an ASyncI02::Cancel
STDMETHODIMP OPCCallback::OnCanceIComplete(
    DWORDtransid，
    OPCHANDLE grphandle)
{
  retum S_OK;
)
，，木枣木木水水牛水木枣木木水木木木木木木木水木木水牛冰球枣木木枣木枣木枣木木宰枣球枣木木水术}木木牛木木本术木木木枣木卑木木木木拳术木半枣木木拳木冰
，，实现类OPCCallback，  只有一个函数，实现代码如下：
／／Called by 2.0 servers when shutting down.
STDMETHODIMP OPCShutdown::ShutdownRequest(LPCWSTR szReason)
{
    reason= szReason;
    PostMessage(*theMsgValue,  WM_OPCSHUTDOWN,(WPARAM)reason.GetBuffer(0),  0）∥
WM_OPCSHUTDOWN对应视图theMsgValue接到的消息。
  retum S_OK;
    1
  以上代码是实现OPCCallback和OPCShutdown两个接口的关键代码，读者可按照自己
182