c++调用outlook组件登录邮箱

要在C++中调用Outlook组件登录邮箱，可以使用Outlook Object Model。以下是一个简单的示例代码，可以作为参考：

#include <iostream>
#include <Windows.h>
#include <Ole2.h>
#include <OleCtl.h>
#include <OleAuto.h>
#include <stdio.h>

using namespace std;

int main()
{
    HRESULT hr;
    CoInitialize(NULL);
    {
        IDispatch *pApp = NULL;
        hr = CoCreateInstance(CLSID_OutlookApplication, NULL, CLSCTX_LOCAL_SERVER, IID_IDispatch, (LPVOID *)&pApp);
        if (SUCCEEDED(hr))
        {
            VARIANT var;
            VariantInit(&var);
            hr = pApp->GetIDsOfNames(IID_NULL, L"GetNamespace", 1, LOCALE_USER_DEFAULT, &dispid);
            if (SUCCEEDED(hr))
            {
                hr = pApp->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &params, &var, NULL, NULL);
                if (SUCCEEDED(hr))
                {
                    IDispatch *pNamespace = var.pdispVal;
                    VariantClear(&var);
                    VariantInit(&var);
                    hr = pNamespace->GetIDsOfNames(IID_NULL, L"Logon", 1, LOCALE_USER_DEFAULT, &dispid);
                    if (SUCCEEDED(hr))
                    {
                        BSTR bstrProfile = SysAllocString(L"your profile name");
                        params.rgvarg[0].vt = VT_BSTR;
                        params.rgvarg[0].bstrVal = bstrProfile;
                        params.cArgs = 1;
                        params.cNamedArgs = 0;
                        hr = pNamespace->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &params, &var, NULL, NULL);
                        if (SUCCEEDED(hr))
                        {
                            IDispatch *pSession = var.pdispVal;
                            VariantClear(&var);
                            VariantInit(&var);
                            hr = pSession->GetIDsOfNames(IID_NULL, L"Folders", 1, LOCALE_USER_DEFAULT, &dispid);
                            if (SUCCEEDED(hr))
                            {
                                hr = pSession->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET, &params, &var, NULL, NULL);
                                if (SUCCEEDED(hr))
                                {
                                    IDispatch *pFolders = var.pdispVal;
                                    VariantClear(&var);
                                    VariantInit(&var);
                                    hr = pFolders->GetIDsOfNames(IID_NULL, L"Item", 1, LOCALE_USER_DEFAULT, &dispid);
                                    if (SUCCEEDED(hr))
                                    {
                                        params.rgvarg[0].vt = VT_I4;
                                        params.rgvarg[0].lVal = 6; //olFolderInbox
                                        params.cArgs = 1;
                                        params.cNamedArgs = 0;
                                        hr = pFolders->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET, &params, &var, NULL, NULL);
                                        if (SUCCEEDED(hr))
                                        {
                                            IDispatch *pFolder = var.pdispVal;
                                            VariantClear(&var);
                                            VariantInit(&var);
                                            hr = pFolder->GetIDsOfNames(IID_NULL, L"Items", 1, LOCALE_USER_DEFAULT, &dispid);
                                            if (SUCCEEDED(hr))
                                            {
                                                hr = pFolder->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET, &params, &var, NULL, NULL);
                                                if (SUCCEEDED(hr))
                                                {
                                                    IDispatch *pItems = var.pdispVal;
                                                    VariantClear(&var);
                                                    VariantInit(&var);
                                                    hr = pItems->GetIDsOfNames(IID_NULL, L"Count", 1, LOCALE_USER_DEFAULT, &dispid);
                                                    if (SUCCEEDED(hr))
                                                    {
                                                        hr = pItems->Invoke(dispid, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_PROPERTYGET, &params, &var, NULL, NULL);
                                                        if (SUCCEEDED(hr))
                                                        {
                                                            int count = var.intVal;
                                                            cout << "Count: " << count << endl;
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    CoUninitialize();
    return 0;
}

在此示例代码中，我们首先使用`CoCreateInstance`函数创建`Outlook.Application`的实例，然后获取`Namespace`和`Logon`对象，使用`Logon`对象登录指定的Outlook账户。接下来，我们获取`Folders`对象，并从中获取`olFolderInbox`文件夹，然后获取其中的`Items`对象，并获取其中的邮件数量。在实际使用中，您可以根据需要调用Outlook提供的各种方法和属性，例如发送邮件、读取邮件、创建联系人等等。