windows-nt/Source/XPSP1/NT/com/ole32/ole232/inc/gen.h

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2020-09-26 03:20:57 -05:00
//+-------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 1993.
//
// File: gen.h
//
// Contents: Declaration of CGenObject
//
// Classes: CGenObject
//
// Functions:
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH add Dump method to CGenObject
// 24-Jan-94 alexgo first pass converting to Cairo style
// memory allocation
// 23-Nov-93 alexgo 32bit port
// 23-Nov-93 alexgo removed internal function declarations
// (only used in gen.cpp, so put them there)
//
//--------------------------------------------------------------------------
#include "olepres.h"
#include "olecache.h"
#include "cachenod.h"
//+-------------------------------------------------------------------------
//
// Class: CGenObject::IOlePresObj
//
// Purpose: Implementation of IOlePresObj for device independent bitmaps
//
// Interface: IOlePresObj (internal OLE interface)
//
// History: dd-mmm-yy Author Comment
// 01-Feb-95 t-ScottH add Dump method (_DEBUG only) (this method
// is also a method in IOlePresObj
// 23-Nov-93 alexgo 32bit port
//
// Notes:
//
//--------------------------------------------------------------------------
class FAR CGenObject : public IOlePresObj, public CPrivAlloc
{
public:
CGenObject (LPCACHENODE pCacheNode, CLIPFORMAT cfFormat,
DWORD dwAspect);
~CGenObject( void );
STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID FAR* ppvObj);
STDMETHOD_(ULONG,AddRef) (THIS) ;
STDMETHOD_(ULONG,Release) (THIS);
STDMETHOD(GetData) (THIS_ LPFORMATETC pformatetcIn,
LPSTGMEDIUM pmedium );
STDMETHOD(GetDataHere) (THIS_ LPFORMATETC pformatetcIn,
LPSTGMEDIUM pmedium );
STDMETHOD(SetDataWDO) (THIS_ LPFORMATETC pformatetc, LPSTGMEDIUM pmedium,
BOOL fRelease, IDataObject * pdo);
STDMETHOD(Draw) (THIS_ void FAR* pvAspect, HDC hicTargetDev,
HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds,
BOOL (CALLBACK * pfnContinue)(ULONG_PTR),
ULONG_PTR dwContinue);
STDMETHOD(GetExtent) (THIS_ DWORD dwAspect, LPSIZEL lpsizel);
STDMETHOD(Load) (THIS_ LPSTREAM pstm, BOOL fReadHeaderOnly = FALSE);
STDMETHOD(Save) (THIS_ LPSTREAM pstm);
STDMETHOD(GetColorSet) (void FAR* pvAspect, HDC hicTargetDev,
LPLOGPALETTE FAR* ppColorSet);
STDMETHOD_(BOOL, IsBlank) (THIS);
STDMETHOD_(void, DiscardHPRES)(THIS);
#ifdef _DEBUG
STDMETHOD(Dump) (THIS_ char **ppszDump, ULONG ulFlag, int nIndentLevel);
#endif // _DEBUG
private:
#ifndef _MAC
INTERNAL GetBitmapData(LPFORMATETC pformatetcIn, LPSTGMEDIUM pmedium);
INTERNAL SetBitmapData(LPFORMATETC pformatetc, LPSTGMEDIUM pmedium,
BOOL fRelease, IDataObject *pDataObject);
#endif
INTERNAL ChangeData(HANDLE hData, BOOL fDelete);
INTERNAL_(HANDLE) LoadHPRES(void);
INTERNAL_(HANDLE) GetCopyOfHPRES(void);
shared_state:
ULONG m_ulRefs;
DWORD m_dwAspect;
DWORD m_dwSize;
LONG m_lWidth;
LONG m_lHeight;
HANDLE m_hPres;
CLIPFORMAT m_cfFormat;
LPCACHENODE m_pCacheNode;
};