C++ (Cpp) COleDataSource::Empty Exemples

Exemple #1

Fichier : XMiLFilesControl.cpp Projet : sigurdle/FirstProject2

HRESULT __stdcall CXMiLFilesControl::OnItemClick(DWORD item)
{
#if 0
	HGLOBAL hData = BuildSelectedFilesClipboard();
	if (hData)
	{
		CMyDropSource*  dropSource = new CMyDropSource;
		CMyDataObject* dataObject = new CMyDataObject;

		STGMEDIUM	stg = {0};
		stg.tymed = TYMED_HGLOBAL;
		stg.hGlobal = hData;
		stg.pUnkForRelease = NULL;
		
		FORMATETC	etc = {0};
		etc.cfFormat = CF_HDROP;//CF_UNICODETEXT;//49285;//RegisterClipboardFormat(CFSTR_SHELLURL);//CF_TEXT;
		etc.tymed = TYMED_HGLOBAL;
		etc.ptd = NULL;
		etc.dwAspect = DVASPECT_CONTENT;
		etc.lindex = -1;

		dataObject->SetData(&etc, &stg, TRUE);

		DWORD dropEffect = 0;
		HRESULT hr = ::DoDragDrop(dataObject, dropSource, DROPEFFECT_LINK | DROPEFFECT_COPY | DROPEFFECT_MOVE, &dropEffect);

		if (hr == DRAGDROP_S_DROP)
		{
			if (dropEffect/* & DROPEFFECT_MOVE*/)
			{
			}
		}

		GlobalFree(hData);

	//	delete dataObject;
	//	delete dropSource;

#if 0
		COleDataSource source;
		source.CacheGlobalData(CF_HDROP, hData, NULL);

		if (source.DoDragDrop(DROPEFFECT_COPY | DROPEFFECT_MOVE, NULL, NULL) == DROPEFFECT_COPY)
		{
		}

		source.Empty();
#endif
					
		GlobalFree(hData);
	}
#endif

	return S_OK;
}

Exemple #2

LRESULT CSQLTableWnd::OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
	POINT point;
	point.x = (short)LOWORD(lParam);
	point.y = (short)HIWORD(lParam);

	if (!(wParam & MK_SHIFT))
	{
		for (int i = 0; i < m_columns.GetSize(); i++)
		{
			m_columns[i]->m_bSelected = false;
		}
	}

	long index = point.y/16;

	if (index >= 0 && index < m_table->Columns->Count)
	{
		m_columns[index]->m_bSelected = true;

		Invalidate();
		UpdateWindow();

		CComQIPtr<ILDOMDocument> document;
		document.CoCreateInstance(CLSID_LDOMDocument);

		VARIANT_BOOL success;
		document->loadXML(L"<columns/>", &success);

		CComQIPtr<ILDOMElement> documentElement;
		document->get_documentElement(&documentElement);

		documentElement->setAttribute(L"fromtable", m_table->Name);

		for (long i = 0; i < m_columns.GetSize(); i++)
		{
			if (m_columns[i]->m_bSelected)
			{
				CComQIPtr<ILDOMElement> element;
				document->createElement(L"column", &element);
				element->setAttribute(L"name", m_table->Columns->Item[_variant_t(index)]->Name);
				documentElement->appendChild(element, NULL);
			}
		}

		BSTR text;
		document->saveXML(NULL, &text);
		int len = SysStringLen(text);

		HGLOBAL hData = GlobalAlloc(GMEM_MOVEABLE, (len+1)*2);

		if (hData)
		{
			WCHAR* p = (WCHAR*)GlobalLock(hData);
			CopyMemory(p, text, (len+1)*2);
			GlobalUnlock(hData);

			CMyDropSource*  dropSource = new CMyDropSource;
			CMyDataObject* dataObject = new CMyDataObject;

			STGMEDIUM	stg = {0};
			stg.tymed = TYMED_HGLOBAL;
			stg.hGlobal = hData;
			stg.pUnkForRelease = NULL;
			
			FORMATETC	etc = {0};
			etc.cfFormat = CF_UNICODETEXT;//CF_UNICODETEXT;//49285;//RegisterClipboardFormat(CFSTR_SHELLURL);//CF_TEXT;
			etc.tymed = TYMED_HGLOBAL;
			etc.ptd = NULL;
			etc.dwAspect = DVASPECT_CONTENT;
			etc.lindex = -1;

			dataObject->SetData(&etc, &stg, TRUE);

			DWORD dropEffect = 0;
			HRESULT hr = ::DoDragDrop(dataObject, dropSource, DROPEFFECT_LINK | DROPEFFECT_COPY | DROPEFFECT_MOVE, &dropEffect);

			if (hr == DRAGDROP_S_DROP)
			{
				if (dropEffect/* & DROPEFFECT_MOVE*/)
				{
				}
			}

			GlobalFree(hData);

		//	delete dataObject;
		//	delete dropSource;

#if 0
			COleDataSource source;
			source.CacheGlobalData(CF_HDROP, hData, NULL);

			if (source.DoDragDrop(DROPEFFECT_COPY | DROPEFFECT_MOVE, NULL, NULL) == DROPEFFECT_COPY)
			{
			}

			source.Empty();
#endif
		}

		SysFreeString(text);
	}
	else
	{
		Invalidate();
	}

	return 0;
}