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304 lines
7.4 KiB
304 lines
7.4 KiB
//+--------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1994 - 2001.
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//
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// File: msiclass.h
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//
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// Contents: msi class collection abstraction
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//
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// Classes:
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//
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//
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// History: 4-14-2000 adamed Created
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//
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//---------------------------------------------------------------------------
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#if !defined(__MSICLASS_H__)
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#define __MSICLASS_H__
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//
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// MSI Tables containing classes
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//
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#define TABLE_FILE_EXTENSIONS L"Extension"
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#define TABLE_CLSIDS L"Class"
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#define TABLE_PROGIDS L"ProgId"
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//
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// Package metadata queries
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//
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//
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// Property table queries -- used to find out global information about the package
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//
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//
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// This query is used to determine the package's global install level
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//
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#define QUERY_INSTALLLEVEL L"SELECT DISTINCT `Value` FROM `Property` WHERE `Property`=\'INSTALLLEVEL\'"
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// This query is used to determine the package's friendly name
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//
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#define QUERY_FRIENDLYNAME L"SELECT DISTINCT `Value` FROM `Property` WHERE `Property`=\'ProductName\'"
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//
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// Feature table queries -- these are used to find out which features will be
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// advertised so that we can later determine if the classes associated with the
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// features should be advertised
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//
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//
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// This query is less a query and more a modification operation. It adds an additional
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// temporary "_IsAdvertised" column to the table. We use this to perform joins in
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// subsequent queries.
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//
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#define QUERY_ADVERTISED_FEATURES_CREATE L"ALTER TABLE `Feature` ADD `_IsAdvertised` INT TEMPORARY HOLD"
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//
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// Again, this query really serves as a modification operation. This one initializes the
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// temporary "_IsAdvertised" column to 0, which in our parlance is the same as initializing
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// the column to "not advertised."
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//
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#define QUERY_ADVERTISED_FEATURES_INIT L"UPDATE `Feature` SET `_IsAdvertised`=0"
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//
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// This is a conventional query -- this returns all the features in the package
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//
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#define QUERY_ADVERTISED_FEATURES_RESULT L"SELECT `Feature`, `Level`, `Attributes` FROM `Feature`"
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//
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// Another modification query -- this eliminates the temporary changes (the additional
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// column) we made to the table in the create query.
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//
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#define QUERY_ADVERTISED_FEATURES_DESTROY L"ALTER TABLE `Feature` FREE"
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//
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// The last modification query -- this allows us to set a particular feature's "_IsAdvertised"
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// column to 1, which will indicate that the feature should be advertised.
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//
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#define QUERY_FEATURES_SET L"UPDATE `Feature` SET `_IsAdvertised`=1 WHERE `Feature`=?"
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//
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// Classes queries -- retrieves file extensions, clsid's, and progid's of the package
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//
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//
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// The rest of these queries are straightforward "read-only" queries. They are all joins
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// to the feature table, requiring that the feature table's "_IsAdvertised" property
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// is set to the advertised state (1). Thus, these queries will only give us classes that
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// should be advertised
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//
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//
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// File extensions query
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//
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#define QUERY_EXTENSIONS L"SELECT DISTINCT `Extension` FROM `Extension`, `Feature` WHERE `Extension` IS NOT NULL " \
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L"AND `Extension`.`Feature_`=`Feature`.`Feature` AND `Feature`.`_IsAdvertised`=1"
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//
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// Clsid query
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//
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#define QUERY_CLSIDS L"SELECT DISTINCT `CLSID`, `Context`, `Component`.`Attributes` FROM `Class`, `Feature`, " \
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L"`Component` WHERE `CLSID` IS NOT NULL AND `Class`.`Feature_`=`Feature`.`Feature` " \
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L"AND `Feature`.`_IsAdvertised`=1 AND `Component`.`Component`=`Class`.`Component_`"
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//
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// ProgId query
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//
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#define QUERY_VERSION_INDEPENDENT_PROGIDS L"SELECT DISTINCT `ProgId`,`CLSID` FROM `ProgId`, `Class`, `Feature` WHERE `ProgId` IS NOT NULL " \
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L"AND `ProgId`.`Class_`=`Class`.`CLSID` AND `Class`.`Feature_`=`Feature`.`Feature` " \
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L"AND `Feature`.`_IsAdvertised`=1"
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//
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// COM clsctx values as they are stored in the package's class (clsid) table
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//
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#define COM_INPROC_CONTEXT L"InprocServer32"
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#define COM_INPROCHANDLER_CONTEXT L"InprocHandler32"
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#define COM_LOCALSERVER_CONTEXT L"LocalServer32"
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#define COM_REMOTESERVER_CONTEXT L"RemoteServer"
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//
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// MSI attribute flags
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//
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#define MSI_64BIT_CLASS msidbComponentAttributes64bit
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#define MSI_DISABLEADVERTISE msidbFeatureAttributesDisallowAdvertise
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#define CLASS_ALLOC_SIZE 256
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//
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// Indices of colums for each read-only query
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//
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enum
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{
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PROPERTY_COLUMN_VALUE = 1
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};
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enum
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{
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FEATURE_COLUMN_FEATURE = 1,
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FEATURE_COLUMN_LEVEL,
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FEATURE_COLUMN_ATTRIBUTES
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};
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enum
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{
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EXTENSION_COLUMN_EXTENSION = 1
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};
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enum
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{
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CLSID_COLUMN_CLSID = 1,
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CLSID_COLUMN_CONTEXT,
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CLSID_COLUMN_ATTRIBUTES
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};
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enum
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{
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PROGID_COLUMN_PROGID = 1,
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PROGID_COLUMN_CLSID
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};
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enum
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{
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TYPE_EXTENSION,
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TYPE_CLSID,
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TYPE_PROGID,
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TYPE_COUNT
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};
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//
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// Structure describing where to write an atom
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// of class information. It is also used as
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// an intermediate scratch pad by CClassCollection
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// in between private method calls to keep track
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// of when and where to allocate new memory
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// for retrieved classes.
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//
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struct DataDestination
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{
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DataDestination(
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DWORD dwType,
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void** prgpvDestination,
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UINT* pcCurrent,
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UINT* pcMax);
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DWORD _cbElementSize;
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UINT* _pcCurrent;
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UINT* _pcMax;
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void** _ppvData;
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};
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//
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// Class that uses queries to create a collection of
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// a package's class data
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//
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class CClassCollection
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{
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public:
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CClassCollection( PACKAGEDETAIL* pPackageDetail );
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HRESULT
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GetClasses( BOOL bFileExtensionsOnly );
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private:
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LONG
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GetClsids();
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LONG
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GetProgIds();
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LONG
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GetExtensions();
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LONG
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GetElements(
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DWORD dwType,
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DataDestination* pDestination);
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LONG
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FlagAdvertisableFeatures();
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LONG
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RemoveAdvertisableFeatureFlags();
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LONG
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GetInstallLevel();
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LONG
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GetFriendlyName();
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LONG
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GetFeatureAdvertiseState(
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CMsiRecord* pFeatureRecord,
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BOOL* pbAdvertised );
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LONG
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AddElement(
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void* pvDataSource,
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DataDestination* pDataDestination);
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LONG
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ProcessElement(
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DWORD dwType,
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CMsiRecord* pRecord,
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DataDestination* pDataDestination);
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LONG
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ProcessExtension(
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CMsiRecord* pRecord,
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WCHAR** ppwszExtension);
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LONG
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ProcessClsid(
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CMsiRecord* pRecord,
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CLASSDETAIL* pClsid,
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BOOL* pbIgnoreClsid);
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LONG
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ProcessProgId(
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CMsiRecord* pRecord,
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DataDestination* pDataDestination,
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WCHAR** ppwszProgId);
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LONG
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FindClass(
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WCHAR* wszClsid,
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CLASSDETAIL** ppClass );
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void
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FreeClassDetail( CLASSDETAIL* pClass );
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CMsiDatabase _Database;
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PACKAGEDETAIL* _pPackageDetail;
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DWORD _cMaxClsids;
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DWORD _cMaxExtensions;
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UINT _InstallLevel;
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static WCHAR* _wszQueries[ TYPE_COUNT ];
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};
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#endif // __MSICLASS_H__
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