Class IViewObjectExImpl

include/com/IViewObjectExImpl.h:9–138

template<typename TImpl>
class IViewObjectExImpl : public ComClass<TImpl, IViewObjectEx> {
public:
	IViewObjectExImpl(TImpl *pParent) : ComClass<TImpl, IViewObjectEx>(pParent) {}

	// IViewObject
	STDMETHODIMP Draw(DWORD dwDrawAspect, LONG lindex, void *pvAspect, DVTARGETDEVICE *ptd, HDC hdcTargetDev, HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds, BOOL (STDMETHODCALLTYPE *pfnContinue)(ULONG_PTR dwContinue), ULONG_PTR dwContinue) {
		return this->m_pParent->OnDraw(dwDrawAspect, lindex, pvAspect, ptd, hdcTargetDev, hdcDraw, lprcBounds, lprcWBounds, pfnContinue, dwContinue);
	}

	STDMETHODIMP GetColorSet(DWORD dwDrawAspect, LONG lindex, void *pvAspect, DVTARGETDEVICE *ptd, HDC hicTargetDev, LOGPALETTE **ppColorSet) {
		if (ppColorSet == NULL) {
			return E_POINTER;
		}
		*ppColorSet = NULL;
		return S_FALSE;
	}

	STDMETHODIMP Freeze(DWORD dwDrawAspect, LONG lindex, void *pvAspect, DWORD *pdwFreeze) {
		return E_NOTIMPL;
	}

	STDMETHODIMP Unfreeze(DWORD dwFreeze) {
		return E_NOTIMPL;
	}

	STDMETHODIMP SetAdvise(DWORD aspects, DWORD advf, IAdviseSink *pAdvSink) {
		if (this->m_pParent->m_adviseSink) {
			this->m_pParent->m_adviseSink->Release();
		}
		this->m_pParent->m_adviseSink = pAdvSink;
		if (this->m_pParent->m_adviseSink) {
			this->m_pParent->m_adviseSink->AddRef();
		}
		return S_OK;
	}

	STDMETHODIMP GetAdvise(DWORD *pAspects, DWORD *pAdvf, IAdviseSink **ppAdvSink) {
		if (pAspects) {
			*pAspects = DVASPECT_CONTENT;
		}
		if (pAdvf) {
			*pAdvf = 0;
		}
		if (ppAdvSink) {
			*ppAdvSink = this->m_pParent->m_adviseSink;
		}
		return S_OK;
	}

	// IViewObject2
	STDMETHODIMP GetExtent(DWORD dwAspect, LONG lindex, DVTARGETDEVICE *ptd, LPSIZEL lpsizel) {
		if (lpsizel == NULL) {
			return E_POINTER;
		}

		if (dwAspect != DVASPECT_CONTENT) {
			return DV_E_DVASPECT;
		}