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我正在使用 COM 创建 VSTO 2007 Outlook Addin。它从 Outlook 中读取所有邮件项，并将未投递的邮件项标记（类别）为未投递。

我正在使用以下代码将未送达的邮件项目标记为未送达。以读取颜色标记的代码有时会崩溃。请向我提出问题。

HRESULT hrGetSelectedItem;

            LPDISPATCH spOlSelectedItem  = NULL;                

            CComPtr<Outlook::_Explorer> spExplorer; 

            //Locating the selected item

            CComPtr<Outlook::Selection> spOlSel; 

            if(m_spApp)

            {

                            //Get the Currently Active Explorer on the top of Desktop

                            hrGetSelectedItem         =  m_spApp->ActiveExplorer(&spExplorer);

                            if(SUCCEEDED(hrGetSelectedItem))

                            {

                                            hrGetSelectedItem = spExplorer->get_Selection(&spOlSel);

                                            if(FAILED(hrGetSelectedItem))

                                            {   

                            MessageBox(NULL,GetStringFromTable(IDS_SELECTITEM),MSGBOX_HEADER, MB_OK|MB_ICONINFORMATION);

                                                            return ;

                                            }

                                            iMailIndex+=1;

                                            VARIANT covIndex;

                                            covIndex.vt = VT_I4;

                                            covIndex.lVal = iMailIndex;

                                            if(spOlSel)

                                            {

                                                            hrGetSelectedItem = spOlSel->Item(covIndex,&spOlSelectedItem);

                                                             CComQIPtr <Outlook::_MailItem> spMailItem;

                                                             if(spOlSelectedItem)

                                                             {

                                                                             hrGetSelectedItem = spOlSelectedItem->QueryInterface(&spMailItem);//Get The selected item

                                                                             if(spMailItem)

                                                                             {

                                                                                             spMailItem->put_Categories(L"Undelivered");

                                                                                             spMailItem->Save();

                                                                             }

                                                             }

                                            }

                            }

            }              LPDISPATCH spOlSelectedItem  = NULL;                

            CComPtr<Outlook::_Explorer> spExplorer; 

            //Locating the selected item

            CComPtr<Outlook::Selection> spOlSel; 

            if(m_spApp)

            {

                            //Get the Currently Active Explorer on the top of Desktop

                            hrGetSelectedItem         =  m_spApp->ActiveExplorer(&spExplorer);

                            if(SUCCEEDED(hrGetSelectedItem))

                            {

                                            hrGetSelectedItem = spExplorer->get_Selection(&spOlSel);

                                            if(FAILED(hrGetSelectedItem))

                                            {   

                                                            MessageBox(NULL,GetStringFromTable(IDS_SELECTITEM),MSGBOX_HEADER, MB_OK|MB_ICONINFORMATION);

                                                            return ;

                                            }

                                            iMailIndex+=1;

                                            VARIANT covIndex;

                                            covIndex.vt = VT_I4;

                                            covIndex.lVal = iMailIndex;

                                            if(spOlSel)

                                            {

                                                            hrGetSelectedItem = spOlSel->Item(covIndex,&spOlSelectedItem);

                                                             CComQIPtr <Outlook::_MailItem> spMailItem;

                                                             if(spOlSelectedItem)

                                                             {

                                                                             hrGetSelectedItem = spOlSelectedItem->QueryInterface(&spMailItem);//Get The selected item

                                                                             if(spMailItem)

                                                                             {

                                                                                             spMailItem->put_Categories(L"Undelivered");

                                                                                             spMailItem->Save();

                                                                             }

                                                             }

                                            }

                            }

            }

提前致谢。

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1 回答 1

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您需要检查 spExplorer 是否为空。Outlook 可以在没有资源管理器的情况下打开。

于 2013-05-18T20:16:46.677 回答