Excel编程——获得Excel单元格的备注

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 获得单元格的公式很简单,通过
Range oCurCell;
oCurCell.AttachDispatch( m_oCurrRange.GetItem( COleVariant( (long)i ), COleVariant( (long)j ) ).pdispVal, TRUE );      // m_oCurrRange是成员变量
VARIANT var = oCurCell.GetFormula();
CString strFormula = var.bstrVal;
原本想同理,GetComment函数就可以获得备注,但是发现GetComment返回的是一个指针,于是又想attach这个指针后,调用GetText()会不会获得Comment文本呢,还是不行。于是找到了下面的方法:
                            CString      strCellContent;
                            LPDISPATCH lpDisp;
                            lpDisp = oCurCell.GetComment();  // 先使用GetComment获得指针
                            if ( !lpDisp )
                            {
                                     continue;
                            }
                            DISPID dispCommentText;
                            wchar_t* ucPtr = _T( "Text" );        // Comment的一个属性
                            //取属性的接口号
                            lpDisp->GetIDsOfNames( IID_NULL,
                                                                              &ucPtr,  
                                                                              1,  
                                                                              LOCALE_USER_DEFAULT,  
                                                                              &dispCommentText );
                            DISPPARAMS dpRangeItem = {NULL, NULL, 0, 0};  
                            HRESULT hr = lpDisp->Invoke( dispCommentText, 
                                                                                              IID_NULL, 
                                                                                              LOCALE_SYSTEM_DEFAULT,   
                                                                                              DISPATCH_PROPERTYGET | DISPATCH_METHOD, 
                                                                                              &dpRangeItem,
                                                                                              &var,
                                                                                              NULL,  
                                                                                              NULL );  
                            lpDisp->Release();  // 释放指针
                           
                            strCellContent = var.bstrVal;
 
       这样就成功获得了Excel单元格的备注。