windows-nt/Source/XPSP1/NT/enduser/stuff/itircl/wrdwheel/local/objmngr.h

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2020-09-26 03:20:57 -05:00
// OBJMNGR.H: Definition of help object manager
#ifndef __OBJMNGR_H__
#define __OBJMNGR_H__
#include <windows.h>
#define OBJINST_BASE 10
#define OBJINST_INCREMENT 10
typedef struct tagObjInstMemRec
{
IUnknown *pUnknown;
CLSID clsid;
} OBJINSTMEMREC, *POBJINSTMEMREC;
class CObjectInstHandler
{
public:
CObjectInstHandler();
~CObjectInstHandler();
STDMETHOD(AddObject)(REFCLSID clsid, DWORD *pdwObjInstance);
STDMETHOD(GetObject)(DWORD dwObjInstance, REFIID riid, void **ppv);
STDMETHOD(Close)(void);
// Persistance Methods - IPersistStreamInit
STDMETHOD(Load)(LPSTREAM pStm);
STDMETHOD(Save)(LPSTREAM pStm, BOOL fClearDirty);
STDMETHOD(InitNew)(void);
STDMETHOD(IsDirty)(void);
private:
POBJINSTMEMREC m_pObjects;
DWORD m_iMaxItem, m_iCurItem;
HANDLE m_hMemory;
BOOL m_fInitNew, m_fIsDirty;;
};
typedef struct tagObjInstRecord
{
DWORD dwOffset, dwSize;
} OBJ_INSTANCE_RECORD, *POBJ_INSTANCE_RECORD;
typedef struct tagObjInstHeader
{
DWORD dwVersion;
DWORD dwEntries;
}OBJ_INSTANCE_HEADER, *POBJ_INSTANCE_HEADER;
typedef struct tagObjInstCache
{
struct tagObjInstHeader Header;
HANDLE hRecords;
struct tagObjInstRecord *pRecords;
} OBJ_INSTANCE_CACHE, *POBJ_INSTANCE_CACHE;
#endif // __OBJMNGR_H__