152 lines
3.1 KiB
C++
152 lines
3.1 KiB
C++
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/*++
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Copyright (C) 1993-1999 Microsoft Corporation
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Module Name:
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iperpbag.cpp
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Abstract:
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Implementation of the IPersistPropertyBag interface exposed on the
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Polyline object.
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--*/
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#include "polyline.h"
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#include "unkhlpr.h"
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/*
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* CImpIPersistPropertyBag interface implementation
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*/
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IMPLEMENT_CONTAINED_INTERFACE(CPolyline, CImpIPersistPropertyBag)
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/*
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* CImpIPersistPropertyBag::GetClassID
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*
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* Purpose:
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* Returns the CLSID of the object represented by this interface.
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*
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* Parameters:
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* pClsID LPCLSID in which to store our CLSID.
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*/
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STDMETHODIMP
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CImpIPersistPropertyBag::GetClassID(
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OUT LPCLSID pClsID
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)
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{
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HRESULT hr = S_OK;
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if (pClsID == NULL) {
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return E_POINTER;
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}
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try {
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*pClsID = m_pObj->m_clsID;
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} catch (...) {
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hr = E_POINTER;
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}
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return hr;
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}
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/*
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* CImpIPersistPropertyBag::InitNew
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*
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* Purpose:
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* Informs the object that it is being created new instead of
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* loaded from a persistent state. This will be called in lieu
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* of IPersistStreamInit::Load.
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*
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* Parameters:
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* None
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*/
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STDMETHODIMP
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CImpIPersistPropertyBag::InitNew(void)
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{
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//Nothing for us to do
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return NOERROR;
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}
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/*
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* CImpIPersistPropertyBag::Load
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*
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* Purpose:
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* Instructs the object to load itself from a previously saved
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* IPropertyBag that was handled by Save in another object lifetime.
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* This function should not hold on to pIPropertyBag.
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*
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* This function is called in lieu of IPersistStreamInit::InitNew
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* when the object already has a persistent state.
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*
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* Parameters:
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* pIPropBag IPropertyBag* from which to load our data.
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* pIError IErrorLog* for storing errors. NULL if caller not interested in errors.
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*/
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STDMETHODIMP CImpIPersistPropertyBag::Load (
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IPropertyBag* pIPropBag,
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IErrorLog* pIError
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)
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{
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HRESULT hr = S_OK;
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if (NULL == pIPropBag) {
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return (E_POINTER);
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}
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try {
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//Read all the data into the control structure.
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hr = m_pObj->m_pCtrl->LoadFromPropertyBag ( pIPropBag, pIError );
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} catch (...) {
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hr = E_POINTER;
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}
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return hr;
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}
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/*
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* CImpIPersistPropertyBag::Save
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*
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* Purpose:
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* Saves the data for this object to an IPropertyBag.
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*
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* Parameters:
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* pIPropBag IPropertyBag* in which to save our data.
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* fClearDirty BOOL indicating if this call should clear
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* the object's dirty flag (TRUE) or leave it
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* unchanged (FALSE).
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* fSaveAllProps BOOL indicating if this call should save all properties.
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*/
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STDMETHODIMP
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CImpIPersistPropertyBag::Save (
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IN IPropertyBag* pIPropBag,
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IN BOOL fClearDirty,
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IN BOOL fSaveAllProps
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)
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{
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HRESULT hr = S_OK;
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if (NULL == pIPropBag) {
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return (E_POINTER);
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}
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try {
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hr = m_pObj->m_pCtrl->SaveToPropertyBag ( pIPropBag, fSaveAllProps );
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} catch (...) {
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hr = E_POINTER;
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}
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if (SUCCEEDED(hr)) {
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if (fClearDirty) {
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m_pObj->m_fDirty=FALSE;
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}
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}
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return hr;
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}
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