_ibase64events_cp.h

一个用ATL开发的Base64编码控件

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#pragma once

template<class T>
class CProxy_IBase64Events :
	public IConnectionPointImpl<T, &__uuidof(_IBase64Events)>
{
public:
	HRESULT Fire_En(BSTR  str)
	{
		HRESULT hr = S_OK;
		T * pThis = static_cast<T *>(this);
		int cConnections = m_vec.GetSize();

		for (int iConnection = 0; iConnection < cConnections; iConnection++)
		{
			pThis->Lock();
			CComPtr<IUnknown> punkConnection = m_vec.GetAt(iConnection);
			pThis->Unlock();

			IDispatch * pConnection = static_cast<IDispatch *>(punkConnection.p);

			if (pConnection)
			{
				CComVariant avarParams[1];
				avarParams[0] = str;	avarParams[0].vt = VT_BSTR;
				CComVariant varResult;

				DISPPARAMS params = { avarParams, NULL, 1, 0 };
				hr = pConnection->Invoke(1, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &params, &varResult, NULL, NULL);
			}
		}
		return hr;
	}
};