Hi Bjoern, <div class="gmail_quote">I have hit a problem that i don't fully understand. Disabled items are SfxVoidItem with Which 0, but inserted with different one. State of Item is check with TYPE Macro as below <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote">if ( (*ppFnd)->Type() == TYPE(SfxVoidItem) ) return SFX_ITEM_DISABLED; </blockquote><div> </div></div>So it just type that decides about disabled state of item. I've changed places where conditions like <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"> if( !(*ppFnd)->Which() ) </blockquote><div>to <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote">if ( (*ppFnd)->ISA(SfxVoidItem) ) </blockquote> <div>because I saw in an assert that this is used. At this moment problem started, code compiles but fails at runtime with segfault at itemset.cxx:313 (line like above) I've checked with gdb that there is no method ISA, but IsA. With the changed method to IsA code does not compile. <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote">(gdb) call (*ppFnd)->IsA(SfxVoidItem) $1 = {sal_Bool (const SfxPoolItem * const, TypeId)} 0x44980824 <SfxPoolItem::IsA(void* (*)()) const> (gdb) call (*ppFnd)->ISA(SfxVoidItem) There is no member or method named ISA. </blockquote><div>Moreover I tried the way with Type and TYPE with no success, gdb output below: <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"> Program received signal SIGSEGV, Segmentation fault. 0x4496cb31 in SfxItemSet::~SfxItemSet (this=0xbfff51e8, __in_chrg=<optimized out>) at /home/maciej/programowanie/libreoffice/libo/svl/source/items/itemset.cxx:314 314 if( (*ppFnd)->Type() == TYPE(SfxVoidItem) ) (gdb) call (*ppFnd)->Type() Cannot access memory at address 0xfca0f97 (gdb) call (*ppFnd)->Which() $1 = 4040 (gdb) call (SfxPoolItem *)(*ppFnd)->Type() Cannot access memory at address 0xfca0f97 (gdb) ptype (*ppFnd) type = const class SfxPoolItem { private: sal_uLong nRefCount; sal_uInt16 nWhich; sal_uInt16 nKind; void SetRefCount(sal_uLong); void SetKind(sal_uInt16); public: sal_uLong AddRef(sal_uLong) const; private: sal_uLong ReleaseRef(sal_uLong) const; long Delete_Impl(void *); protected: SfxPoolItem(sal_uInt16); SfxPoolItem(const SfxPoolItem &); public: static void * CreateType(void); static TypeId StaticType(void); static sal_Bool IsOf(TypeId); virtual TypeId Type(void) const; virtual sal_Bool IsA(TypeId) const; ~SfxPoolItem(int); void SetWhich(sal_uInt16); sal_uInt16 Which(void) const; virtual int operator==(const SfxPoolItem &) const; int operator!=(const SfxPoolItem &) const; virtual int Compare(const SfxPoolItem &) const; virtual int Compare(const SfxPoolItem &, const IntlWrapper &) const; virtual SfxItemPresentation GetPresentation(SfxItemPresentation, SfxMapUnit, SfxMapUnit, String &, const IntlWrapper *) const; virtual sal_uInt16 GetVersion(sal_uInt16) const; virtual bool ScaleMetrics(long, long); virtual bool HasMetrics(void) const; virtual bool QueryValue(com::sun::star::uno::Any &, sal_uInt8) const; virtual bool PutValue(const com::sun::star::uno::Any &, sal_uInt8); virtual SfxPoolItem * Create(SvStream &, sal_uInt16) const; virtual SvStream & Store(SvStream &, sal_uInt16) const; virtual SfxPoolItem * Clone(SfxItemPool *) const; virtual SfxPoolItem * CloneAtWhich(sal_uInt16, SfxItemPool *) const; sal_uLong GetRefCount(void) const; sal_uInt16 GetKind(void) const; static rtl::OUString readByteString(SvStream &); static void writeByteString(SvStream &, const rtl::OUString &); static rtl::OUString readUnicodeString(SvStream &, bool); static void writeUnicodeString(SvStream &, const rtl::OUString &); private: SfxPoolItem & operator=(const SfxPoolItem &); } * (gdb) call (*ppFnd)->StaticType() $2 = (void *(*)(void)) 0x4498077e <SfxPoolItem::CreateType()></blockquote><div> Thanks in advance for help :) Maciek </div></div><div> </div></div></div>