POINT.CPP

// Point.cpp : Implementation of CPoint 
#include "stdafx.h" 
#include "GraphObj.h" 
#include "Point.h" 
 
///////////////////////////////////////////////////////////////////////////// 
// CPoint 
 
STDMETHODIMP CPoint::IMyPersistStreamImpl_Load(LPSTREAM pIStream) 
{ 
    ULONG           cb; 
    HRESULT         hr; 
 
    if (NULL==pIStream) 
        return ResultFromScode(E_POINTER); 
 
    hr=pIStream->Read(&m_Point, sizeof(POINT), &cb); 
    if (FAILED(hr) || sizeof(POINT) != cb) { 
pIStream->Release(); 
        return hr; 
    } 
 
return NOERROR; 
} 
 
 
 
STDMETHODIMP CPoint::IMyPersistStreamImpl_Save(LPSTREAM pIStream, BOOL /*fClearDirty */) 
{ 
    ULONG           cb; 
    HRESULT         hr; 
 
    if (NULL==pIStream) 
        return ResultFromScode(E_POINTER); 
 
    hr=pIStream->Write(&m_Point, (ULONG)sizeof(POINT), &cb); 
 
    if (FAILED(hr) || sizeof(POINT)!=cb) 
       return ResultFromScode(STG_E_WRITEFAULT); 
 
return NOERROR; 
} 
 
 
STDMETHODIMP CPoint::IMyPersistStreamImpl_GetSizeMax(ULARGE_INTEGER FAR* pcbSize) 
{ 
pcbSize->LowPart = (DWORD)(sizeof(POINT)); 
pcbSize->HighPart = 0L; 
return NOERROR; 
} 
 
 
STDMETHODIMP CPoint::get_x(long * pVal) 
{ 
*pVal = m_Point.x; 
return S_OK; 
} 
 
STDMETHODIMP CPoint::put_x(long newVal) 
{ 
m_Point.x = newVal; 
return S_OK; 
} 
 
STDMETHODIMP CPoint::get_y(long * pVal) 
{ 
*pVal = m_Point.y; 
return S_OK; 
} 
 
STDMETHODIMP CPoint::put_y(long newVal) 
{ 
m_Point.y = newVal; 
return S_OK; 
}