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411 lines
11 KiB
411 lines
11 KiB
/*
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* regkey.h
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*
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* Copyright (c) 1995 by DataBeam Corporation, Lexington, KY
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*
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* Abstract:
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* This is the interface file for the class CRegKeyContainer. This class
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* manages the data associated with a Registry Key. Registry Key are
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* used to identify resources held in the application registry and consist
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* of a Session Key and a resource ID octet string. The CRegKeyContainer
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* class uses a CSessKeyContainer container to maintain the session key data
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* internally. A Rogue Wave string object is used to hold the resource ID
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* octet string.
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*
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* Caveats:
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* None.
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*
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* Author:
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* jbo
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*/
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#ifndef _REGISTRY_KEY_DATA_
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#define _REGISTRY_KEY_DATA_
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#include "sesskey.h"
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/*
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* This is the typedef for the structure used to hold the registry key data
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* internally.
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*/
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typedef struct
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{
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CSessKeyContainer *session_key;
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LPOSTR poszResourceID;
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}
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REG_KEY;
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/*
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* Class definition:
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*/
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class CRegKeyContainer : public CRefCount
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{
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public:
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CRegKeyContainer(PGCCRegistryKey, PGCCError);
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CRegKeyContainer(PRegistryKey, PGCCError);
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CRegKeyContainer(CRegKeyContainer *, PGCCError);
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~CRegKeyContainer(void);
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UINT LockRegistryKeyData(void);
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void UnLockRegistryKeyData(void);
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UINT GetGCCRegistryKeyData(PGCCRegistryKey, LPBYTE memory);
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GCCError GetRegistryKeyDataPDU(PRegistryKey);
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void FreeRegistryKeyDataPDU(void);
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GCCError CreateRegistryKeyData(PGCCRegistryKey *);
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BOOL IsThisYourSessionKey(CSessKeyContainer *);
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CSessKeyContainer *GetSessionKey(void) { return m_InternalRegKey.session_key; }
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friend BOOL operator==(const CRegKeyContainer&, const CRegKeyContainer&);
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protected:
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REG_KEY m_InternalRegKey;
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UINT m_cbDataSize;
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RegistryKey m_RegKeyPDU;
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BOOL m_fValidRegKeyPDU;
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};
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/*
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* Comments explaining the public and protected class member functions
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*/
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/*
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* CRegKeyContainer ( PGCCRegistryKey registry_key,
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* PGCCError return_value);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This is the constructor for the CRegKeyContainer class which takes as
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* input the "API" version of registry key data, GCCRegistryKey.
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*
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* Formal Parameters:
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* registry_key (i) The registry key data to store.
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* return_value (o) The output parameter used to indicate errors.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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* GCC_BAD_REGISTRY_KEY - An invalid registry key passed in.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* CRegKeyContainer ( PRegistryKey registry_key,
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* PGCCError return_value);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This is the constructor for the CRegKeyContainer class which takes as
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* input the "PDU" version of registry key data, RegistryKey.
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*
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* Formal Parameters:
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* registry_key (i) The registry key data to store.
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* return_value (o) The output parameter used to indicate errors.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* CRegKeyContainer(CRegKeyContainer *registry_key,
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* PGCCError return_value);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This is the copy constructor for the CRegKeyContainer class which takes
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* as input another CRegKeyContainer object.
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*
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* Formal Parameters:
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* registry_key (i) The CRegKeyContainer object to copy.
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* return_value (o) The output parameter used to indicate errors.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* ~CRegKeyContainer();
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This is the destructor for the CRegKeyContainer class. It is used to
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* clean up any memory allocated during the life of this object.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* None.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* ULong LockRegistryKeyData ();
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to "lock" the "API" data for this object. This
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* results in the lock count for this object being incremented. When the
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* lock count transitions from 0 to 1, a calculation is made to determine
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* how much memory will be needed to hold any "API" data which will
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* be referenced by, but not held in, the GCCRegistryKey structure
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* which is filled in on a call to GetGCCRegistryKeyData. This is the
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* value returned by this routine in order to allow the calling object to
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* allocate that amount of memory in preparation for the call to
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* GetGCCRegistryKeyData.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* The amount of memory, if any, which will be needed to hold "API" data
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* which is referenced by, but not held in, the GCCRegistryKey structure
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* provided as an output parameter to the GetGCCRegistryKeyData call.
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*
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* Side Effects:
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* The internal lock count is incremented.
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*
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* Caveats:
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* The internal lock count is used in conjuction with an internal "free"
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* flag as a mechanism for ensuring that this object remains in existance
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* until all interested parties are through with it. The object remains
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* valid (unless explicity deleted) until the lock count is zero and the
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* "free" flag is set through a call to FreeRegistryKeyData. This allows
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* other objects to lock this object and be sure that it remains valid
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* until they call UnLock which will decrement the internal lock count. A
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* typical usage scenerio for this object would be: A CRegKeyContainer
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* object is constructed and then passed off to any interested parties
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* through a function call. On return from the function call, the
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* FreeRegistryKeyData call is made which will set the internal "free"
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* flag. If no other parties have locked the object with a Lock call,
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* then the CRegKeyContainer object will automatically delete itself when
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* the FreeRegistryKeyData call is made. If, however, any number of
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* other parties has locked the object, it will remain in existence until
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* each of them has unlocked the object through a call to UnLock.
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*/
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/*
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* ULong GetGCCRegistryKeyData (
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* PGCCRegistryKey registry_key,
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* LPSTR memory);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to retrieve the registry key data from the
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* CRegKeyContainer object in the "API" form of a GCCRegistryKey.
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*
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* Formal Parameters:
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* registry_key (o) The GCCRegistryKey structure to fill in.
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* memory (o) The memory used to hold any data referenced by,
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* but not held in, the output structure.
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*
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* Return Value:
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* The amount of data, if any, written into the bulk memory block provided.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* void UnLockRegistryKeyData ();
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to "unlock" the "API" data for this object. This
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* results in the lock count for this object being decremented. When the
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* lock count transitions from 1 to 0, a check is made to determine
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* whether the object has been freed through a call to
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* FreeRegistryKeyData. If so, the object will automatically delete
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* itself.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* None.
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*
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* Side Effects:
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* The internal lock count is decremented.
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*
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* Caveats:
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* It is the responsibility of any party which locks a CRegKeyContainer
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* object by calling Lock to also unlock the object with a call to UnLock.
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* If the party calling UnLock did not construct the CRegKeyContainer
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* object, it should assume the object to be invalid thereafter.
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*/
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/*
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* GCCError GetRegistryKeyDataPDU (
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* PRegistryKey registry_key);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to retrieve the registry key data from the
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* CRegKeyContainer object in the "PDU" form of a RegistryKey.
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*
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* Formal Parameters:
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* registry_key (o) The RegistryKey structure to fill in.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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* GCC_BAD_OBJECT_KEY - One of the internal pointers has
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* been corrupted.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* void FreeRegistryKeyDataPDU ();
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to "free" the "PDU" data allocated for this object
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* which is held internally in a RegistryKey structure.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* None.
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*
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* Side Effects:
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* The internal "free" flag is set.
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*
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* Caveats:
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* This object should be assumed invalid after a call to
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* FreeRegistryKeyDataPDU has been made.
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*/
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/*
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* BOOL IsThisYourSessionKey (
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* CSessKeyContainer *session_key);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to determine whether the specified session key
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* is held within this registry key object. The session key is
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* provided in "API" form.
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*
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* Formal Parameters:
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* session_key (i) The session key to use for comparison.
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*
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* Return Value:
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* TRUE - The specified session key is contained
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* within this registry key object.
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* FALSE - The specified session key is not contained
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* within this registry key object.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* CSessKeyContainer *GetSessionKey ();
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to retrieve the session key held in this registry
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* key object. The session key is returned in the form of a
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* CSessKeyContainer object.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* A pointer to the CSessKeyContainer object contained within this
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* CRegKeyContainer object.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* friend BOOL operator== (const CRegKeyContainer& registry_key_1,
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* const CRegKeyContainer& registry_key_2);
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*
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* Public member function of CRegKeyContainer.
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*
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* Function Description:
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* This routine is used to compare two CRegKeyContainer objects to determine
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* whether or not they are equal in value.
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*
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* Formal Parameters:
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* registry_key_1 (i) The first CRegKeyContainer object to compare.
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* registry_key_2 (i) The other CRegKeyContainer object to compare.
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*
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* Return Value:
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* TRUE - The two objects are equal in value.
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* FALSE - The two objects are not equal in value.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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#endif
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