106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
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/***************************************************************************/
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/** Microsoft Windows **/
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/** Copyright(c) Microsoft Corp., 1995-1996 **/
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/***************************************************************************/
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/****************************************************************************
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cuserdta.hpp
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June 96 LenS
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T120 user data/object ID infrastructure.
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****************************************************************************/
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#ifndef USERDATA_INC
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#define USERDATA_INC
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#include <oblist.h>
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#include <confdbg.h>
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#include <confguid.h>
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// H.221 utility functions
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VOID CreateH221AppKeyFromGuid(LPBYTE lpb, GUID * pguid);
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BOOL GetGuidFromH221AppKey(LPTSTR pszGuid, LPOSTR pOctStr);
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// GetUserData extracts user data from a T120 event message.
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// The caller passes in the T120 data structures and the GUID
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// associated with the user data, and receives back a pointer to
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// the buffer containing the user data.
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// This buffer will be invalidated by the user returning from
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// the event. If the user data consisted just
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// of the GUID, then *pnData == NULL and *ppData == NULL.
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HRESULT GetUserData(UINT nRecords,
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GCCUserData ** ppUserData,
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GUID * pGUID,
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UINT * pnData,
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PVOID * ppData);
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/*************************************************************************
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NAME: USER_DATA
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SYNOPSIS: This class is used internally by the Node Controller to
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contruct a user data list. Each entry is GUID based with
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binary data following that is uninterpreted by the
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Node Controller and T120.
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INTERFACE: USER_DATA(object ID)
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Construct the container for the list.
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~USER_DATA_GUID()
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Destructor automatically releases data allocated.
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AddUserData()
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Add some user data to the list, keyed by a unique
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GUID. If the GUID is already in the list, then its
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data will be overwritten.
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GetUserData()
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Used in conjunction with GetNumUserData() to put the
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user data into a T120 request.
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GetNumUserData()
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See GetUserData().
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PARENT: None
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USES: None
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CAVEATS: 1) The user data binary information must fit in an unsigned
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short field, less the bytes for the GUID header and byte count.
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NOTES: None.
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HISTORY:
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06/04/96 lens Created
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**************************************************************************/
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class CNCUserDataList : private CList
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{
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public:
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CNCUserDataList(void);
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~CNCUserDataList(void);
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HRESULT AddUserData(GUID * pGUID, UINT nData, PVOID pData);
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HRESULT GetUserDataList(UINT * pnRecords, GCCUserData *** pppUserData);
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GCCUserData **GetUserData(void);
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GCCUserData *GetUserGUIDData(GUID * pGUID);
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void DeleteEntry(GUID * pGUID);
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private:
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BOOL Append(GCCUserData* pData) { return CList::Append((LPVOID) pData); }
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BOOL Remove(GCCUserData* pData) { return CList::Remove((LPVOID) pData); }
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GCCUserData* Iterate(void) { return (GCCUserData*) CList::Iterate(); }
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GCCUserData ** m_apUserData;
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};
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#endif /* ndef USERDATA_INC */
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