remove unnecessary use of void in function declarations

ie.
    void f(void);
becomes
    void f();

I used the following command to make the changes:

  git grep -lP '\(\s*void\s*\)' -- *.cxx \
    | xargs perl -pi -w -e 's/(\w+)\s*\(\s*void\s*\)/$1\(\)/g;'

and ran it for both .cxx and .hxx files.

Change-Id: I314a1b56e9c14d10726e32841736b0ad5eef8ddd

18 files changed, 55 insertions, 55 deletions

diff --git a/shell/source/backends/localebe/localebackend.cxx b/shell/source/backends/localebe/localebackend.cxx
index f2190d17fbfa..4b5c34a50be1 100644
--- a/shell/source/backends/localebe/localebackend.cxx
+++ b/shell/source/backends/localebe/localebackend.cxx
@@ -211,7 +211,7 @@ LocaleBackend::LocaleBackend()
 
 
 
-LocaleBackend::~LocaleBackend(void)
+LocaleBackend::~LocaleBackend()
 {
 }
 
@@ -224,7 +224,7 @@ LocaleBackend* LocaleBackend::createInstance()
 
 
 
-OUString LocaleBackend::getLocale(void)
+OUString LocaleBackend::getLocale()
 {
 #if defined WNT
     return ImplGetLocale( GetUserDefaultLCID() );
@@ -237,7 +237,7 @@ OUString LocaleBackend::getLocale(void)
 
 
 
-OUString LocaleBackend::getUILocale(void)
+OUString LocaleBackend::getUILocale()
 {
 #if defined WNT
     return ImplGetLocale( MAKELCID(GetUserDefaultUILanguage(), SORT_DEFAULT) );
@@ -250,7 +250,7 @@ OUString LocaleBackend::getUILocale(void)
 
 
 
-OUString LocaleBackend::getSystemLocale(void)
+OUString LocaleBackend::getSystemLocale()
 {
 // note: the implementation differs from getLocale() only on Windows
 #if defined WNT
@@ -302,17 +302,17 @@ css::uno::Any LocaleBackend::getPropertyValue(
 
 
 
-OUString SAL_CALL LocaleBackend::getBackendName(void) {
+OUString SAL_CALL LocaleBackend::getBackendName() {
     return OUString("com.sun.star.comp.configuration.backend.LocaleBackend") ;
 }
 
-OUString SAL_CALL LocaleBackend::getImplementationName(void)
+OUString SAL_CALL LocaleBackend::getImplementationName()
     throw (uno::RuntimeException, std::exception)
 {
     return getBackendName() ;
 }
 
-uno::Sequence<OUString> SAL_CALL LocaleBackend::getBackendServiceNames(void)
+uno::Sequence<OUString> SAL_CALL LocaleBackend::getBackendServiceNames()
 {
     uno::Sequence<OUString> aServiceNameList(1);
     aServiceNameList[0] = "com.sun.star.configuration.backend.LocaleBackend";
@@ -325,7 +325,7 @@ sal_Bool SAL_CALL LocaleBackend::supportsService(const OUString& aServiceName)
     return cppu::supportsService(this, aServiceName);
 }
 
-uno::Sequence<OUString> SAL_CALL LocaleBackend::getSupportedServiceNames(void)
+uno::Sequence<OUString> SAL_CALL LocaleBackend::getSupportedServiceNames()
     throw (uno::RuntimeException, std::exception)
 {
     return getBackendServiceNames() ;
diff --git a/shell/source/backends/localebe/localebackend.hxx b/shell/source/backends/localebe/localebackend.hxx
index 59a7fbbb108c..29ca23c1d8bd 100644
--- a/shell/source/backends/localebe/localebackend.hxx
+++ b/shell/source/backends/localebe/localebackend.hxx
@@ -55,13 +55,13 @@ class LocaleBackend : public ::cppu::WeakImplHelper2 <
 
           @return   implementation name
           */
-        static OUString SAL_CALL getBackendName(void) ;
+        static OUString SAL_CALL getBackendName() ;
         /**
           Provides the supported services names
 
           @return   service names
           */
-        static uno::Sequence<OUString> SAL_CALL getBackendServiceNames(void) ;
+        static uno::Sequence<OUString> SAL_CALL getBackendServiceNames() ;
 
         // XPropertySet
         virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL
@@ -123,17 +123,17 @@ class LocaleBackend : public ::cppu::WeakImplHelper2 <
         LocaleBackend();
 
         /** Destructor */
-        virtual ~LocaleBackend(void) ;
+        virtual ~LocaleBackend() ;
 
     private:
         // Returns the user locale
-        static OUString getLocale(void);
+        static OUString getLocale();
 
         // Returns the user UI locale
-        static OUString getUILocale(void);
+        static OUString getUILocale();
 
         // Returns the system default locale
-        static OUString getSystemLocale(void);
+        static OUString getSystemLocale();
 } ;
 
 
diff --git a/shell/source/backends/macbe/macbackend.hxx b/shell/source/backends/macbe/macbackend.hxx
index 75d3288ca799..1486d1d9ccfc 100644
--- a/shell/source/backends/macbe/macbackend.hxx
+++ b/shell/source/backends/macbe/macbackend.hxx
@@ -53,14 +53,14 @@ public:
 
        @return   implementation name
     */
-    static OUString SAL_CALL getBackendName(void);
+    static OUString SAL_CALL getBackendName();
 
     /**
        Provides the supported services names
 
        @return   service names
     */
-    static uno::Sequence<OUString> SAL_CALL getBackendServiceNames(void);
+    static uno::Sequence<OUString> SAL_CALL getBackendServiceNames();
 
     // XPropertySet
     virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL
@@ -123,7 +123,7 @@ protected:
     MacOSXBackend();
 
     /** Destructor */
-    virtual ~MacOSXBackend(void);
+    virtual ~MacOSXBackend();
 };
 
 #endif // INCLUDED_SHELL_SOURCE_BACKENDS_MACBE_MACBACKEND_HXX
diff --git a/shell/source/backends/wininetbe/wininetbackend.cxx b/shell/source/backends/wininetbe/wininetbackend.cxx
index 1c6b4de581d6..23aed71fcf01 100644
--- a/shell/source/backends/wininetbe/wininetbackend.cxx
+++ b/shell/source/backends/wininetbe/wininetbackend.cxx
@@ -298,7 +298,7 @@ WinInetBackend::WinInetBackend()
 
 
 
-WinInetBackend::~WinInetBackend(void)
+WinInetBackend::~WinInetBackend()
 {
 }
 
@@ -362,19 +362,19 @@ css::uno::Any WinInetBackend::getPropertyValue(
 
 
 
-OUString SAL_CALL WinInetBackend::getBackendName(void) {
+OUString SAL_CALL WinInetBackend::getBackendName() {
     return OUString("com.sun.star.comp.configuration.backend.WinInetBackend") ;
 }
 
 
 
-OUString SAL_CALL WinInetBackend::getImplementationName(void)
+OUString SAL_CALL WinInetBackend::getImplementationName()
     throw (uno::RuntimeException)
 {
     return getBackendName() ;
 }
 
-uno::Sequence<OUString> SAL_CALL WinInetBackend::getBackendServiceNames(void)
+uno::Sequence<OUString> SAL_CALL WinInetBackend::getBackendServiceNames()
 {
     uno::Sequence<OUString> aServiceNameList(1);
     aServiceNameList[0] = "com.sun.star.configuration.backend.WinInetBackend";
@@ -388,7 +388,7 @@ sal_Bool SAL_CALL WinInetBackend::supportsService(const OUString& aServiceName)
     return cppu::supportsService(this, aServiceName);
 }
 
-uno::Sequence<OUString> SAL_CALL WinInetBackend::getSupportedServiceNames(void)
+uno::Sequence<OUString> SAL_CALL WinInetBackend::getSupportedServiceNames()
     throw (uno::RuntimeException)
 {
     return getBackendServiceNames() ;
diff --git a/shell/source/backends/wininetbe/wininetbackend.hxx b/shell/source/backends/wininetbe/wininetbackend.hxx
index 57d6e8333705..a2b87079da63 100644
--- a/shell/source/backends/wininetbe/wininetbackend.hxx
+++ b/shell/source/backends/wininetbe/wininetbackend.hxx
@@ -55,13 +55,13 @@ class WinInetBackend : public ::cppu::WeakImplHelper2 <
 
           @return   implementation name
           */
-        static OUString SAL_CALL getBackendName(void) ;
+        static OUString SAL_CALL getBackendName() ;
         /**
           Provides the supported services names
 
           @return   service names
           */
-        static uno::Sequence<OUString> SAL_CALL getBackendServiceNames(void) ;
+        static uno::Sequence<OUString> SAL_CALL getBackendServiceNames() ;
 
         // XPropertySet
         virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL
@@ -123,7 +123,7 @@ class WinInetBackend : public ::cppu::WeakImplHelper2 <
         WinInetBackend();
 
         /** Destructor */
-        ~WinInetBackend(void) ;
+        ~WinInetBackend() ;
 
     private:
         com::sun::star::beans::Optional< com::sun::star::uno::Any >
diff --git a/shell/source/win32/ooofilereader/autostyletag.hxx b/shell/source/win32/ooofilereader/autostyletag.hxx
index 6b2140f34ec7..34c563f44635 100644
--- a/shell/source/win32/ooofilereader/autostyletag.hxx
+++ b/shell/source/win32/ooofilereader/autostyletag.hxx
@@ -49,7 +49,7 @@ class CAutoStyleTag : public ITag
 
         void setStyle( ::std::wstring const & Style );
         void setLocale(const LocaleSet_t& Locale);
-        void clearStyleLocalePair( void );
+        void clearStyleLocalePair();
         inline StyleLocalePair_t getStyleLocalePair() const{ return m_CurrentStyleLocalePair; };
         inline bool isFull() const
         {
diff --git a/shell/source/win32/ooofilereader/contentreader.cxx b/shell/source/win32/ooofilereader/contentreader.cxx
index 3c22a1a11481..6f9a9602f6f7 100644
--- a/shell/source/win32/ooofilereader/contentreader.cxx
+++ b/shell/source/win32/ooofilereader/contentreader.cxx
@@ -79,7 +79,7 @@ try
 /** destructor.
 */
 
-CContentReader::~CContentReader( void )
+CContentReader::~CContentReader()
 {
 }
 
@@ -119,7 +119,7 @@ ITag* CContentReader::chooseTagReader( const std::wstring& tag_name, const XmlTa
 
 /** get style of the current content.
 */
-::std::wstring CContentReader::getCurrentContentStyle( void )
+::std::wstring CContentReader::getCurrentContentStyle()
 {
     assert( !m_TagBuilderStack.empty() );
     ITag* pTagBuilder = m_TagBuilderStack.top();
diff --git a/shell/source/win32/ooofilereader/dummytag.hxx b/shell/source/win32/ooofilereader/dummytag.hxx
index a1be1198e62c..da954c7400a4 100644
--- a/shell/source/win32/ooofilereader/dummytag.hxx
+++ b/shell/source/win32/ooofilereader/dummytag.hxx
@@ -41,7 +41,7 @@ class CDummyTag : public ITag
 
         virtual void addAttributes(const XmlTagAttributes_t& /*attributes*/){};
 
-        virtual std::wstring getTagContent( void )
+        virtual std::wstring getTagContent()
         {
             return EMPTY_STRING;
         };
diff --git a/shell/source/win32/ooofilereader/itag.hxx b/shell/source/win32/ooofilereader/itag.hxx
index eb8667d1e5c2..d2b63b5b4c2f 100644
--- a/shell/source/win32/ooofilereader/itag.hxx
+++ b/shell/source/win32/ooofilereader/itag.hxx
@@ -37,7 +37,7 @@ class ITag
         virtual void endTag() = 0;
         virtual void addCharacters(const std::wstring& characters) = 0;
         virtual void addAttributes(const XmlTagAttributes_t& attributes) = 0;
-        virtual ::std::wstring getTagContent( void ) = 0;
+        virtual ::std::wstring getTagContent() = 0;
         virtual ::std::wstring const getTagAttribute( ::std::wstring  const & attrname ) = 0;
 };
 
diff --git a/shell/source/win32/ooofilereader/metainforeader.cxx b/shell/source/win32/ooofilereader/metainforeader.cxx
index be0c7ee5576e..b4273bdc89b6 100644
--- a/shell/source/win32/ooofilereader/metainforeader.cxx
+++ b/shell/source/win32/ooofilereader/metainforeader.cxx
@@ -117,7 +117,7 @@ try
 /** destructor.
 */
 
-CMetaInfoReader::~CMetaInfoReader( void )
+CMetaInfoReader::~CMetaInfoReader()
 {
     delete m_pKeywords_Builder;
     delete m_pSimple_Builder;
diff --git a/shell/source/win32/shlxthandler/classfactory.cxx b/shell/source/win32/shlxthandler/classfactory.cxx
index d3a14b9aee92..977b3ce8168e 100644
--- a/shell/source/win32/shlxthandler/classfactory.cxx
+++ b/shell/source/win32/shlxthandler/classfactory.cxx
@@ -71,14 +71,14 @@ HRESULT STDMETHODCALLTYPE CClassFactory::QueryInterface(REFIID riid, void __RPC_
 
 
 
-ULONG STDMETHODCALLTYPE CClassFactory::AddRef(void)
+ULONG STDMETHODCALLTYPE CClassFactory::AddRef()
 {
     return InterlockedIncrement(&m_RefCnt);
 }
 
 
 
-ULONG STDMETHODCALLTYPE CClassFactory::Release(void)
+ULONG STDMETHODCALLTYPE CClassFactory::Release()
 {
     long refcnt = InterlockedDecrement(&m_RefCnt);
 
diff --git a/shell/source/win32/shlxthandler/classfactory.hxx b/shell/source/win32/shlxthandler/classfactory.hxx
index 075a2381171a..131c8e01d17d 100644
--- a/shell/source/win32/shlxthandler/classfactory.hxx
+++ b/shell/source/win32/shlxthandler/classfactory.hxx
@@ -42,9 +42,9 @@ public:
             REFIID riid,
             void __RPC_FAR *__RPC_FAR *ppvObject);
 
-    virtual ULONG STDMETHODCALLTYPE AddRef(void);
+    virtual ULONG STDMETHODCALLTYPE AddRef();
 
-    virtual ULONG STDMETHODCALLTYPE Release(void);
+    virtual ULONG STDMETHODCALLTYPE Release();
 
 
     // IClassFactory methods
diff --git a/shell/source/win32/shlxthandler/columninfo/columninfo.cxx b/shell/source/win32/shlxthandler/columninfo/columninfo.cxx
index 9eeb252d182c..e503bc3a3e51 100644
--- a/shell/source/win32/shlxthandler/columninfo/columninfo.cxx
+++ b/shell/source/win32/shlxthandler/columninfo/columninfo.cxx
@@ -84,14 +84,14 @@ HRESULT STDMETHODCALLTYPE CColumnInfo::QueryInterface(REFIID riid, void __RPC_FA
 
 
 
-ULONG STDMETHODCALLTYPE CColumnInfo::AddRef(void)
+ULONG STDMETHODCALLTYPE CColumnInfo::AddRef()
 {
     return InterlockedIncrement(&m_RefCnt);
 }
 
 
 
-ULONG STDMETHODCALLTYPE CColumnInfo::Release( void)
+ULONG STDMETHODCALLTYPE CColumnInfo::Release()
 {
     long refcnt = InterlockedDecrement(&m_RefCnt);
 
diff --git a/shell/source/win32/shlxthandler/infotips/infotips.cxx b/shell/source/win32/shlxthandler/infotips/infotips.cxx
index abfb8d69e8a6..657bcf279d12 100644
--- a/shell/source/win32/shlxthandler/infotips/infotips.cxx
+++ b/shell/source/win32/shlxthandler/infotips/infotips.cxx
@@ -84,14 +84,14 @@ HRESULT STDMETHODCALLTYPE CInfoTip::QueryInterface(REFIID riid, void __RPC_FAR *
 
 
 
-ULONG STDMETHODCALLTYPE CInfoTip::AddRef(void)
+ULONG STDMETHODCALLTYPE CInfoTip::AddRef()
 {
     return InterlockedIncrement(&m_RefCnt);
 }
 
 
 
-ULONG STDMETHODCALLTYPE CInfoTip::Release( void)
+ULONG STDMETHODCALLTYPE CInfoTip::Release()
 {
     long refcnt = InterlockedDecrement(&m_RefCnt);
 
@@ -347,7 +347,7 @@ HRESULT STDMETHODCALLTYPE CInfoTip::Load(LPCOLESTR pszFileName, DWORD /*dwMode*/
 
 
 
-HRESULT STDMETHODCALLTYPE CInfoTip::IsDirty(void)
+HRESULT STDMETHODCALLTYPE CInfoTip::IsDirty()
 {
     return E_NOTIMPL;
 }
diff --git a/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx b/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx
index acc0174f635b..f38070621406 100644
--- a/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx
+++ b/shell/source/win32/shlxthandler/prophdl/propertyhdl.cxx
@@ -117,13 +117,13 @@ HRESULT STDMETHODCALLTYPE CPropertyHdl::QueryInterface(REFIID riid, void __RPC_F
 }
 
 
-ULONG STDMETHODCALLTYPE CPropertyHdl::AddRef( void )
+ULONG STDMETHODCALLTYPE CPropertyHdl::AddRef()
 {
     return InterlockedIncrement( &m_RefCnt );
 }
 
 
-ULONG STDMETHODCALLTYPE CPropertyHdl::Release( void )
+ULONG STDMETHODCALLTYPE CPropertyHdl::Release()
 {
     long refcnt = InterlockedDecrement( &m_RefCnt );
 
@@ -343,13 +343,13 @@ HRESULT STDMETHODCALLTYPE CClassFactory::QueryInterface( REFIID riid, void __RPC
 }
 
 
-ULONG STDMETHODCALLTYPE CClassFactory::AddRef( void )
+ULONG STDMETHODCALLTYPE CClassFactory::AddRef()
 {
     return InterlockedIncrement( &m_RefCnt );
 }
 
 
-ULONG STDMETHODCALLTYPE CClassFactory::Release( void )
+ULONG STDMETHODCALLTYPE CClassFactory::Release()
 {
     long refcnt = InterlockedDecrement( &m_RefCnt );
 
@@ -423,7 +423,7 @@ extern "C" STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void** ppv)
 }
 
 
-extern "C" STDAPI DllCanUnloadNow( void )
+extern "C" STDAPI DllCanUnloadNow()
 {
     OutputDebugStringFormat( "DllCanUnloadNow.\n" );
     if (CClassFactory::IsLocked() || g_DllRefCnt > 0)
diff --git a/shell/source/win32/shlxthandler/propsheets/propsheets.cxx b/shell/source/win32/shlxthandler/propsheets/propsheets.cxx
index 0cfa944f4c64..6d1a146bfd34 100644
--- a/shell/source/win32/shlxthandler/propsheets/propsheets.cxx
+++ b/shell/source/win32/shlxthandler/propsheets/propsheets.cxx
@@ -99,7 +99,7 @@ HRESULT STDMETHODCALLTYPE CPropertySheet::QueryInterface(
 
 
 
-ULONG STDMETHODCALLTYPE CPropertySheet::AddRef(void)
+ULONG STDMETHODCALLTYPE CPropertySheet::AddRef()
 {
     OutputDebugStringFormat("CPropertySheet::AddRef [%d]", m_RefCnt );
     return InterlockedIncrement(&m_RefCnt);
@@ -107,7 +107,7 @@ ULONG STDMETHODCALLTYPE CPropertySheet::AddRef(void)
 
 
 
-ULONG STDMETHODCALLTYPE CPropertySheet::Release(void)
+ULONG STDMETHODCALLTYPE CPropertySheet::Release()
 {
     OutputDebugStringFormat("CPropertySheet::Release [%d]", m_RefCnt );
     long refcnt = InterlockedDecrement(&m_RefCnt);
diff --git a/shell/source/win32/shlxthandler/shlxthdl.cxx b/shell/source/win32/shlxthandler/shlxthdl.cxx
index 80460e8fe4d7..fb6c1f44af42 100644
--- a/shell/source/win32/shlxthandler/shlxthdl.cxx
+++ b/shell/source/win32/shlxthandler/shlxthdl.cxx
@@ -397,7 +397,7 @@ extern "C" STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void** ppv)
     return S_OK;
 }
 
-extern "C" STDAPI DllCanUnloadNow(void)
+extern "C" STDAPI DllCanUnloadNow()
 {
     if (CClassFactory::IsLocked() || g_DllRefCnt > 0)
         return S_FALSE;
diff --git a/shell/source/win32/shlxthandler/thumbviewer/thumbviewer.cxx b/shell/source/win32/shlxthandler/thumbviewer/thumbviewer.cxx
index 6519a96fc610..3062f8402966 100644
--- a/shell/source/win32/shlxthandler/thumbviewer/thumbviewer.cxx
+++ b/shell/source/win32/shlxthandler/thumbviewer/thumbviewer.cxx
@@ -124,7 +124,7 @@ public:
 
     // IUnknown
     virtual ULONG STDMETHODCALLTYPE AddRef();
-    virtual ULONG STDMETHODCALLTYPE Release( void);
+    virtual ULONG STDMETHODCALLTYPE Release();
     virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject);
 
     // IStream
@@ -134,7 +134,7 @@ public:
     virtual HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER libNewSize);
     virtual HRESULT STDMETHODCALLTYPE CopyTo(IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten);
     virtual HRESULT STDMETHODCALLTYPE Commit(DWORD grfCommitFlags);
-    virtual HRESULT STDMETHODCALLTYPE Revert(void);
+    virtual HRESULT STDMETHODCALLTYPE Revert();
     virtual HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
     virtual HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
     virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG *pstatstg, DWORD grfStatFlag);
@@ -155,12 +155,12 @@ StreamOnZipBuffer::StreamOnZipBuffer(const ZipFile::ZipContentBuffer_t& zip_buff
 
 // IUnknown methods
 
-ULONG STDMETHODCALLTYPE StreamOnZipBuffer::AddRef(void)
+ULONG STDMETHODCALLTYPE StreamOnZipBuffer::AddRef()
 {
     return InterlockedIncrement(&ref_count_);
 }
 
-ULONG STDMETHODCALLTYPE StreamOnZipBuffer::Release( void)
+ULONG STDMETHODCALLTYPE StreamOnZipBuffer::Release()
 {
     long refcnt = InterlockedDecrement(&ref_count_);
 
@@ -275,7 +275,7 @@ HRESULT STDMETHODCALLTYPE StreamOnZipBuffer::CopyTo(IStream *, ULARGE_INTEGER, U
 HRESULT STDMETHODCALLTYPE StreamOnZipBuffer::Commit(DWORD)
 { return E_NOTIMPL; }
 
-HRESULT STDMETHODCALLTYPE StreamOnZipBuffer::Revert(void)
+HRESULT STDMETHODCALLTYPE StreamOnZipBuffer::Revert()
 { return E_NOTIMPL; }
 
 HRESULT STDMETHODCALLTYPE StreamOnZipBuffer::LockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD)
@@ -339,12 +339,12 @@ HRESULT STDMETHODCALLTYPE CThumbviewer::QueryInterface(REFIID riid, void __RPC_F
     return E_NOINTERFACE;
 }
 
-ULONG STDMETHODCALLTYPE CThumbviewer::AddRef(void)
+ULONG STDMETHODCALLTYPE CThumbviewer::AddRef()
 {
     return InterlockedIncrement(&ref_count_);
 }
 
-ULONG STDMETHODCALLTYPE CThumbviewer::Release( void)
+ULONG STDMETHODCALLTYPE CThumbviewer::Release()
 {
     long refcnt = InterlockedDecrement(&ref_count_);