Outlook - 从显示名称获取电子邮件地址。适用于 Python,不适用于 C

Outlook - get email address from Display Name. Works in Python, not C

我正在尝试将一些代码从 Python 转换为 C 和 OLE。该代码正在从 Outlook 显示名称获取电子邮件地址。

Python 代码有效,看起来像这样:

    recipient = self._outlook.Session.CreateRecipient(name)

    recipient.Resolve()

    if self._first:
        print(inspect.getmembers(recipient))
        self._first = False
        print(recipient.Resolved)
        print(recipient.AddressEntry)
        if 'EX' == recipient.AddressEntry.Type:
            exchange_user = recipient.AddressEntry.GetExchangeUser()
            email = exchange_user.PrimarySmtpAddress
        elif 'SMTP' == recipient.AddressEntry.Type:
            email = recipient.AddressEntry.Address
        print(email)

反过来,它基本上是 VBA code on MSDN 的 python 化版本。

然而,在 C 和 OLE 中我就是不明白,我只能在 MSDN 和其他论坛上找到 C#、VBA 和 C++ 以及 MFC 示例(我对此不感兴趣),如以及使用专有框架的建议。

到目前为止,我在 C 中所拥有的。 outlookapp 已成功初始化为 CoCreateInstance()

IDispatch *pNS = NULL;
{
    VARIANT x;
    x.vt = VT_BSTR;
    x.bstrVal = SysAllocString(L"MAPI");

    VARIANT result;
    VariantInit(&result);
    AutoWrap(DISPATCH_METHOD, &result, outlookapp, L"GetNamespace", 1, x);
    pNS = result.pdispVal;

    SysFreeString(x.bstrVal);
    VariantClear(&x);
}


// Log on by using a dialog box to choose the profile.
{
    VARIANT vtShowDialog;
    vtShowDialog.vt = VT_BOOL;
    vtShowDialog.boolVal = VARIANT_TRUE;
    VARIANT vtNewSession;
    vtNewSession.vt = VT_BOOL;
    vtNewSession.boolVal = VARIANT_TRUE;

    if (FAILED(AutoWrap(DISPATCH_METHOD, NULL, pNS, L"Logon", 4, vtNewSession,
        vtShowDialog, vtMissing, vtMissing))) {
        printf("Logon failed.\n"); Sleep(15000); ExitProcess(1);
    }
}

printf("Done logging in to Outlook\n");

IDispatch *recipient = NULL;
{
    VARIANT x;
    x.vt = VT_BSTR;
    x.bstrVal = SysAllocString(L"John Doe");

    VARIANT result;
    VariantInit(&result);
    HRESULT hr = AutoWrap(DISPATCH_METHOD, &result, pNS, L"CreateRecipient", 1, &x);
    if (FAILED(hr)) {
        printf("Can not CreateRecipient(), error: %x\n", hr); Sleep(60000); ExitProcess(1);
    }
    recipient = result.pdispVal;
}

{
    VARIANT result;
    VariantInit(&result);
    HRESULT hr = AutoWrap(DISPATCH_METHOD, &result, recipient, L"Resolve", 0);
    if (FAILED(hr)) {
        printf("Can not call Resolve()\n");
        Sleep(3000); ExitProcess(1);
    }
}

代码死于 "Can not CreateRecipient()" printf 消息,错误 0x800706F4 对应于 "A null reference pointer was passed to the stub."

AutoWrap 也写自己的消息:IDispatch::Invoke("CreateRecipient"=0000210a) failed w/err 0x800706f4

它来自 AutoWrap 中的这段代码:

// Make the call 
hr = pDisp->Invoke(
    dispID,
    IID_NULL,
    LOCALE_SYSTEM_DEFAULT,
    autoType,
    &dp,
    pvResult,
    NULL,
    NULL
); 

if (FAILED(hr))  
{ 
    wprintf(L"IDispatch::Invoke(\"%s\"=%08lx) failed w/err 0x%08lx\n",  
        ptName, dispID, hr); 
    return hr; 
} 

最后 objective 是将地址数据从 Outlook 馈送到 Excel,并且我已经使用 OLE 实现了 Excel 自动化。真的很高兴有任何想法 - 我真的很想找到这方面的信息,但没有找到太多关于 Outlook 在这个级别上的实际工作方式的信息。

正如 Hans Passant 所见,我只是在这一行输入了 &x 而不是 x

HRESULT hr = AutoWrap(DISPATCH_METHOD, &result, pNS, L"CreateRecipient", 1, &x);

::

HRESULT hr = AutoWrap(DISPATCH_METHOD, &result, pNS, L"CreateRecipient", 1, x);