444 lines
12 KiB
C++
444 lines
12 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 2000
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//
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// File: cxxifilt.cxx
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//
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// Contents: C++ filter 'class factory'.
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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#include <pch.cxx>
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#pragma hdrstop
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#include <filtreg.hxx>
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long gulcInstances = 0;
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extern "C" CLSID TYPID_CxxIFilter = {
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0x96fe75e0,
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0xa581,
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0x101a,
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{ 0xb5, 0x53, 0x08, 0x00, 0x2b, 0x33, 0xb0, 0xe6 }
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};
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extern "C" CLSID CLSID_CxxIFilter = {
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0xC1BCD320,
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0xBF96,
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0x11CD,
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{ 0xB5, 0x79, 0x08, 0x00, 0x2B, 0x30, 0xBF, 0xEB }
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};
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extern "C" CLSID CLSID_CxxClass = {
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0x96fe75e1,
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0xa581,
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0x101a,
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{ 0xb5, 0x53, 0x08, 0x00, 0x2b, 0x33, 0xb0, 0xe6 }
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};
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterBase::CxxIFilterBase
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//
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// Synopsis: Base constructor
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//
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// Effects: Manages global refcount
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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CxxIFilterBase::CxxIFilterBase()
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{
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_uRefs = 1;
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InterlockedIncrement( &gulcInstances );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterBase::~CxxIFilterBase
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//
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// Synopsis: Base destructor
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//
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// Effects: Manages global refcount
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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CxxIFilterBase::~CxxIFilterBase()
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{
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InterlockedDecrement( &gulcInstances );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterBase::QueryInterface
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//
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// Synopsis: Rebind to other interface
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//
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// Arguments: [riid] -- IID of new interface
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// [ppvObject] -- New interface * returned here
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//
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// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CxxIFilterBase::QueryInterface( REFIID riid,
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void ** ppvObject)
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{
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SCODE sc = S_OK;
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if ( 0 == ppvObject )
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return E_INVALIDARG;
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*ppvObject = 0;
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if ( IID_IFilter == riid )
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*ppvObject = (IUnknown *)(IFilter *)this;
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else if ( IID_IPersist == riid )
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*ppvObject = (IUnknown *)(IPersist *)(IPersistFile *)this;
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else if ( IID_IPersistFile == riid )
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*ppvObject = (IUnknown *)(IPersistFile *)this;
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else if ( IID_IUnknown == riid )
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*ppvObject = (IUnknown *)(IPersist *)(IPersistFile *)this;
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else
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sc = E_NOINTERFACE;
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if ( SUCCEEDED( sc ) )
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AddRef();
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return sc;
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} //QueryInterface
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterBase::AddRef
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//
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// Synopsis: Increments refcount
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CxxIFilterBase::AddRef()
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{
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return InterlockedIncrement( &_uRefs );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterBase::Release
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//
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// Synopsis: Decrement refcount. Delete if necessary.
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CxxIFilterBase::Release()
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{
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unsigned long uTmp = InterlockedDecrement( &_uRefs );
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if ( 0 == uTmp )
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delete this;
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return(uTmp);
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::CxxIFilterCF
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//
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// Synopsis: Text IFilter class factory constructor
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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CxxIFilterCF::CxxIFilterCF()
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{
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_uRefs = 1;
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long c = InterlockedIncrement( &gulcInstances );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::~CxxIFilterCF
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//
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// Synopsis: Text IFilter class factory constructor
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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CxxIFilterCF::~CxxIFilterCF()
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{
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long c = InterlockedDecrement( &gulcInstances );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::QueryInterface
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//
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// Synopsis: Rebind to other interface
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//
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// Arguments: [riid] -- IID of new interface
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// [ppvObject] -- New interface * returned here
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//
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// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CxxIFilterCF::QueryInterface( REFIID riid,
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void ** ppvObject )
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{
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SCODE sc = S_OK;
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if ( 0 == ppvObject )
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return E_INVALIDARG;
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*ppvObject = 0;
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if ( IID_IClassFactory == riid )
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*ppvObject = (IUnknown *)(IClassFactory *)this;
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else if ( IID_ITypeLib == riid )
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sc = E_NOTIMPL;
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else if ( IID_IUnknown == riid )
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*ppvObject = (IUnknown *)(IClassFactory *)this;
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else
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sc = E_NOINTERFACE;
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if ( SUCCEEDED( sc ) )
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AddRef();
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return sc;
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} //QueryInterface
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::AddRef
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//
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// Synopsis: Increments refcount
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CxxIFilterCF::AddRef()
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{
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return InterlockedIncrement( &_uRefs );
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::Release
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//
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// Synopsis: Decrement refcount. Delete if necessary.
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE CxxIFilterCF::Release()
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{
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unsigned long uTmp = InterlockedDecrement( &_uRefs );
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if ( 0 == uTmp )
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delete this;
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return(uTmp);
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::CreateInstance
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//
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// Synopsis: Creates new TextIFilter object
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//
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// Arguments: [pUnkOuter] -- 'Outer' IUnknown
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// [riid] -- Interface to bind
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// [ppvObject] -- Interface returned here
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CxxIFilterCF::CreateInstance( IUnknown * pUnkOuter,
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REFIID riid,
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void * * ppvObject )
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{
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CxxIFilter * pIUnk = 0;
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SCODE sc = S_OK;
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CTranslateSystemExceptions translate;
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TRY
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{
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pIUnk = new CxxIFilter();
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sc = pIUnk->QueryInterface( riid , ppvObject );
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if( SUCCEEDED(sc) )
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pIUnk->Release(); // Release extra refcount from QueryInterface
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}
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CATCH(CException, e)
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{
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Win4Assert( 0 == pIUnk );
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switch( e.GetErrorCode() )
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{
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case E_OUTOFMEMORY:
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sc = (E_OUTOFMEMORY);
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break;
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default:
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sc = (E_UNEXPECTED);
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}
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}
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END_CATCH;
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return (sc);
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}
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//+-------------------------------------------------------------------------
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//
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// Method: CxxIFilterCF::LockServer
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//
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// Synopsis: Force class factory to remain loaded
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//
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// Arguments: [fLock] -- TRUE if locking, FALSE if unlocking
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//
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// Returns: S_OK
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE CxxIFilterCF::LockServer(BOOL fLock)
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{
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if(fLock)
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InterlockedIncrement( &gulcInstances );
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else
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InterlockedDecrement( &gulcInstances );
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return(S_OK);
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}
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//+-------------------------------------------------------------------------
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//
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// Function: DllGetClassObject
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//
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// Synopsis: Ole DLL load class routine
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//
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// Arguments: [cid] -- Class to load
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// [iid] -- Interface to bind to on class object
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// [ppvObj] -- Interface pointer returned here
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//
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// Returns: Text filter class factory
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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extern "C" SCODE STDMETHODCALLTYPE DllGetClassObject( REFCLSID cid,
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REFIID iid,
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void ** ppvObj )
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{
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IUnknown * pResult = 0;
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SCODE sc = S_OK;
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CTranslateSystemExceptions translate;
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TRY
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{
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if ( memcmp( &cid, &CLSID_CxxIFilter, sizeof(cid) ) == 0
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|| memcmp( &cid, &CLSID_CxxClass, sizeof(cid) ) == 0 )
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pResult = (IUnknown *) new CxxIFilterCF;
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else
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sc = E_NOINTERFACE;
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if( pResult )
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{
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sc = pResult->QueryInterface( iid, ppvObj );
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pResult->Release(); // Release extra refcount from QueryInterface
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}
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}
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CATCH(CException, e)
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{
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if ( pResult )
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pResult->Release();
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switch( e.GetErrorCode() )
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{
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case E_OUTOFMEMORY:
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sc = (E_OUTOFMEMORY);
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break;
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default:
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sc = (E_UNEXPECTED);
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}
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}
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END_CATCH;
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return (sc);
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}
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//+-------------------------------------------------------------------------
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//
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// Method: DllCanUnloadNow
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//
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// Synopsis: Notifies DLL to unload (cleanup global resources)
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//
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// Returns: S_OK if it is acceptable for caller to unload DLL.
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//
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// History: 23-Feb-1994 KyleP Created
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//
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//--------------------------------------------------------------------------
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extern "C" SCODE STDMETHODCALLTYPE DllCanUnloadNow( void )
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{
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if ( 0 == gulcInstances )
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return( S_OK );
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else
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return( S_FALSE );
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}
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SClassEntry const aCxxClasses[] =
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{
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{ L".cpp", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
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{ L".hpp", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".cxx", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".hxx", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".c", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".h", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".w", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".acf", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".idl", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".inl", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
{ L".odl", L"CxxFile", L"Class for C and C++ Files", L"{96fe75e1-a581-101a-b553-08002b33b0e6}", L"Class for C and C++ Files" },
|
||
|
|
};
|
||
|
|
|
||
|
|
SHandlerEntry const CxxHandler =
|
||
|
|
{
|
||
|
|
L"{5f2cb400-bf96-11cd-b579-08002b30bfeb}",
|
||
|
|
L"C++ persistent handler",
|
||
|
|
L"{c1bcd320-bf96-11cd-b579-08002b30bfeb}",
|
||
|
|
};
|
||
|
|
|
||
|
|
SFilterEntry const CxxFilter =
|
||
|
|
{
|
||
|
|
L"{c1bcd320-bf96-11cd-b579-08002b30bfeb}",
|
||
|
|
L"C++ IFilter",
|
||
|
|
L"cxxflt.dll",
|
||
|
|
L"Both"
|
||
|
|
};
|
||
|
|
|
||
|
|
DEFINE_DLLREGISTERFILTER( CxxHandler, CxxFilter, aCxxClasses )
|
||
|
|
|