拖拽文件到RichEdit的后期处理

当然肯定是要实现IRichEditOleCallback这个接口，网上很多文章有这个介绍，

HRESULT STDMETHODCALLTYPE TRichEditOleCallback::QueryAcceptData(LPDATAOBJECT lpdataobj, CLIPFORMAT FAR *lpcfFormat,
												  DWORD reco, BOOL fReally, HGLOBAL hMetaPict)
{
	HRESULT result=S_OK;
	if (TRUE==fReally)
	{

		FORMATETC tFormat={ 0xC007/*FileNameW*/, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
		STGMEDIUM tSTGMEDIUM;
		ZeroMemory(&tSTGMEDIUM,  sizeof(STGMEDIUM));
		if (S_OK==lpdataobj->GetData(&tFormat,&tSTGMEDIUM))
		{

			LPOLESTR pstrData =(LPOLESTR)GlobalLock(tSTGMEDIUM.lpszFileName); //GlobalLock(tSTGMEDIUM.lpszFileName);
			/*
			USES_CONVERSION;  
			CString strFileName =OLE2T(pstrData);
			HYPERLINKINFO linkInfo;
			NMHDR header;
			header.hwndFrom = m_RichEditCtrl->m_hWnd ;
			header.idFrom   = m_RichEditCtrl->GetDlgCtrlID();
			header.code     = 0xFFFF;
			m_RichEditCtrl->GetParent()->SendMessage(WM_NOTIFY,(WPARAM)strFileName.GetBuffer(0),(LPARAM)&header);
			*/
			GlobalUnlock(tSTGMEDIUM.lpszFileName);	
			ReleaseStgMedium(&tSTGMEDIUM);
			return S_FALSE;
		}
	}
	return S_OK;
}