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#ifndef NULLSOFT_CDDB_EVENT_MANAGER_HEADER
#define NULLSOFT_CDDB_EVENT_MANAGER_HEADER
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
#pragma once
#endif
#include <windows.h>
// callbacks
typedef void (CALLBACK *CDDB_CMDCOMPLETED)(LONG /*lCommandCode*/, HRESULT /*hCommandResult*/, VARIANT* /*pCommandData*/, ULONG_PTR /*user*/);
typedef void (CALLBACK *CDDB_LOGMSG)(BSTR /*bstrMessage*/, ULONG_PTR /*user*/);
typedef void (CALLBACK *CDDB_SRVMSG)(LONG /*lMessageCode*/, LONG /*lMessageAction*/, BSTR /*bstrMessageData*/, ULONG_PTR /*user*/);
typedef void (CALLBACK *CDDB_CMDPROGRESS)(LONG /*lCommandCode*/, LONG /*lProgressCode*/, LONG /*lBytesDone*/, LONG /*lBytesTotal*/, ULONG_PTR /*user*/);
// callback types
#define CDDB_CB_CMDCOMPLETED 0
#define CDDB_CB_CMDPROGRESS 1
#define CDDB_CB_LOGMSG 2
#define CDDB_CB_SRVMSG 3
class CDBBEventManager : public IDispatch
{
public:
CDBBEventManager(void);
virtual ~CDBBEventManager(void);
public:
// *** IUnknown Methods ***
STDMETHOD(QueryInterface)(REFIID riid, PVOID *ppvObject);
STDMETHOD_(ULONG, AddRef)(void);
STDMETHOD_(ULONG, Release)(void);
// *** IDispatch Methods ***
STDMETHOD (GetIDsOfNames)(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid);
STDMETHOD (GetTypeInfo)(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo);
STDMETHOD (GetTypeInfoCount)(unsigned int FAR * pctinfo);
STDMETHOD (Invoke)(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr);
protected:
void OnCommandCompleted(LONG lCommandCode, HRESULT hCommandResult, VARIANT *pCommandData);
void OnLogMessage(BSTR bstrMessage);
void OnServerMessage(LONG lMessageCode, LONG lMessageAction, BSTR bstrMessageData);
void OnCommandProgress(LONG lCommandCode, LONG lProgressCode, LONG lBytesDone, LONG lBytesTotal);
public:
HRESULT Advise(IUnknown *pCDDBCtrl);
HRESULT Unadvise(IUnknown *pCDDBCtrl);
HRESULT RegisterCallback(UINT nType, void *fnCallback);
ULONG_PTR SetUserParam(ULONG_PTR userParam);
protected:
LONG ref;
DWORD cookie;
ULONG_PTR user;
CDDB_CMDCOMPLETED fnCmdCompleted;
CDDB_CMDPROGRESS fnCmdProgress;
CDDB_LOGMSG fnLogMessage;
CDDB_SRVMSG fnServerMessage;
};
#endif //NULLSOFT_CDDB_EVENT_MANAGER_HEADER
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