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ghc-glib-devel-0.11.2-3.fc14.i686.rpm

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>System.Glib.GObject</TITLE
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>glib-0.11.2: Binding to the GLIB library for Gtk2Hs.</TD
><TD CLASS="topbut"
><A HREF="src/System-Glib-GObject.html"
>Source code</A
></TD
><TD CLASS="topbut"
><A HREF="index.html"
>Contents</A
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><FONT SIZE="6"
>System.Glib.GObject</FONT
></TD
><TD ALIGN="right"
><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>portable (depends on GHC)</TD
></TR
><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>provisional</TD
></TR
><TR
><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>gtk2hs-users@lists.sourceforge.net</TD
></TR
></TABLE
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
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><TD
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="section4"
><B
>Contents</B
></TD
></TR
><TR
><TD
><DL
><DT
><A HREF="#1"
>Types
</A
></DT
><DT
><A HREF="#2"
>Low level binding functions
</A
></DT
><DD
><DL
><DT
><A HREF="#3"
>GType queries
</A
></DT
><DT
><A HREF="#4"
>Callback support
</A
></DT
><DT
><A HREF="#5"
>User-Defined Attributes
</A
></DT
></DL
></DD
></DL
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
>The base object type for all glib objects
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
>Synopsis</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>newtype</SPAN
>  <A HREF="#t%3AGObject"
>GObject</A
>  = <A HREF="#v%3AGObject"
>GObject</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
>)</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>class</SPAN
>  <A HREF="#t%3AGObjectClass"
>GObjectClass</A
> o  <SPAN CLASS="keyword"
>where</SPAN
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="#v%3AtoGObject"
>toGObject</A
> :: o -&gt; <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AunsafeCastGObject"
>unsafeCastGObject</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
> -&gt; o</TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AmkGObject"
>mkGObject</A
> ::  (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
> -&gt; <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
>, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> a)</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AunGObject"
>unGObject</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AcastToGObject"
>castToGObject</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; obj -&gt; obj</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectUnref"
>objectUnref</A
> ::  <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> a</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectNew"
>objectNew</A
> :: <A HREF="System-Glib-GType.html#t%3AGType"
>GType</A
> -&gt; [(<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
>, <A HREF="System-Glib-GValue.html#t%3AGValue"
>GValue</A
>)] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
>)</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectRef"
>objectRef</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectRefSink"
>objectRefSink</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AmakeNewGObject"
>makeNewGObject</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> obj -&gt; obj, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> obj) -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj) -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> obj</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AconstructNewGObject"
>constructNewGObject</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> obj -&gt; obj, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> obj) -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj) -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> obj</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AgTypeGObject"
>gTypeGObject</A
> :: <A HREF="System-Glib-GType.html#t%3AGType"
>GType</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AisA"
>isA</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; o -&gt; <A HREF="System-Glib-GType.html#t%3AGType"
>GType</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>type</SPAN
> <A HREF="#t%3ADestroyNotify"
>DestroyNotify</A
> = <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3AFunPtr"
>FunPtr</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
>)</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AdestroyFunPtr"
>destroyFunPtr</A
> :: <A HREF="System-Glib-GObject.html#t%3ADestroyNotify"
>DestroyNotify</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AdestroyStablePtr"
>destroyStablePtr</A
> :: <A HREF="System-Glib-GObject.html#t%3ADestroyNotify"
>DestroyNotify</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>type</SPAN
> <A HREF="#t%3AQuark"
>Quark</A
> = <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-C-Types.html#t%3ACUInt"
>CUInt</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AquarkFromString"
>quarkFromString</A
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Glib-GObject.html#t%3AQuark"
>Quark</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectCreateAttribute"
>objectCreateAttribute</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="System-Glib-Attributes.html#t%3AAttr"
>Attr</A
> o (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
> a))</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectSetAttribute"
>objectSetAttribute</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; <A HREF="System-Glib-GObject.html#t%3AQuark"
>Quark</A
> -&gt; o -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
> a -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="#v%3AobjectGetAttributeUnsafe"
>objectGetAttributeUnsafe</A
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; <A HREF="System-Glib-GObject.html#t%3AQuark"
>Quark</A
> -&gt; o -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
> a)</TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="1"
><A NAME="1"
>Types
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><SPAN CLASS="keyword"
>newtype</SPAN
>  <A NAME="t:GObject"
><A NAME="t%3AGObject"
></A
></A
><B
>GObject</B
>  </TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#GObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="section4"
>Constructors</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="arg"
><A NAME="v:GObject"
><A NAME="v%3AGObject"
></A
></A
><B
>GObject</B
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
>)</TD
><TD CLASS="rdoc"
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:GObject')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:GObject" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><SPAN CLASS="keyword"
>class</SPAN
>  <A NAME="t:GObjectClass"
><A NAME="t%3AGObjectClass"
></A
></A
><B
>GObjectClass</B
> o  <SPAN CLASS="keyword"
>where</SPAN
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#GObjectClass"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="section4"
>Methods</TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:toGObject"
><A NAME="v%3AtoGObject"
></A
></A
><B
>toGObject</B
> :: o -&gt; <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#toGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Safe upcast.
</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:unsafeCastGObject"
><A NAME="v%3AunsafeCastGObject"
></A
></A
><B
>unsafeCastGObject</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
> -&gt; o</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#unsafeCastGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Unchecked downcast.
</TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:GObjectClass')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:GObjectClass" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:mkGObject"
><A NAME="v%3AmkGObject"
></A
></A
><B
>mkGObject</B
> ::  (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
> -&gt; <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
>, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> a)</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#mkGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:unGObject"
><A NAME="v%3AunGObject"
></A
></A
><B
>unGObject</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#unGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:castToGObject"
><A NAME="v%3AcastToGObject"
></A
></A
><B
>castToGObject</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; obj -&gt; obj</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#castToGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectUnref"
><A NAME="v%3AobjectUnref"
></A
></A
><B
>objectUnref</B
> ::  <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> a</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-Types.html#objectUnref"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Decrease the reference counter of an object
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="2"
><A NAME="2"
>Low level binding functions
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="doc"
>All these functions are internal and are only interesting to people
 writing bindings to GObject-style C libraries.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectNew"
><A NAME="v%3AobjectNew"
></A
></A
><B
>objectNew</B
> :: <A HREF="System-Glib-GType.html#t%3AGType"
>GType</A
> -&gt; [(<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
>, <A HREF="System-Glib-GValue.html#t%3AGValue"
>GValue</A
>)] -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> <A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
>)</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#objectNew"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Construct a new object (should rairly be used directly)
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectRef"
><A NAME="v%3AobjectRef"
></A
></A
><B
>objectRef</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#objectRef"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Increase the reference counter of an object
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectRefSink"
><A NAME="v%3AobjectRefSink"
></A
></A
><B
>objectRefSink</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#objectRefSink"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Reference and sink an object.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:makeNewGObject"
><A NAME="v%3AmakeNewGObject"
></A
></A
><B
>makeNewGObject</B
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#makeNewGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="arg"
>:: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj</TD
><TD CLASS="rdoc"
></TD
></TR
><TR
><TD CLASS="arg"
>=&gt; (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> obj -&gt; obj, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> obj)</TD
><TD CLASS="rdoc"
>constructor for the Haskell object and finalizer C function
</TD
></TR
><TR
><TD CLASS="arg"
>-&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj)</TD
><TD CLASS="rdoc"
>action which yields a pointer to the C object
</TD
></TR
><TR
><TD CLASS="arg"
>-&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> obj</TD
><TD CLASS="rdoc"
></TD
></TR
><TR
><TD CLASS="ndoc" COLSPAN="2"
><P
>This function wraps any object that does not derive from Object.
 It should be used whenever a function returns a pointer to an existing
 <TT
><A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TT
> (as opposed to a function that constructs a new object).
</P
><UL
><LI
> The first argument is the contructor of the specific object.
</LI
></UL
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:constructNewGObject"
><A NAME="v%3AconstructNewGObject"
></A
></A
><B
>constructNewGObject</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> obj =&gt; (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AForeignPtr"
>ForeignPtr</A
> obj -&gt; obj, <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-ForeignPtr.html#t%3AFinalizerPtr"
>FinalizerPtr</A
> obj) -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> obj) -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> obj</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#constructNewGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>This function wraps any object that does not
 derive from Object. The object is NOT reference, hence it should be used
 when a new object is created. Newly created <TT
><A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TT
>s have a reference
 count of one, hence don't need ref'ing.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section2"
><A NAME="3"
><A NAME="3"
>GType queries
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:gTypeGObject"
><A NAME="v%3AgTypeGObject"
></A
></A
><B
>gTypeGObject</B
> :: <A HREF="System-Glib-GType.html#t%3AGType"
>GType</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#gTypeGObject"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>The type constant to check if an instance is of <TT
><A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TT
> type.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:isA"
><A NAME="v%3AisA"
></A
></A
><B
>isA</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; o -&gt; <A HREF="System-Glib-GType.html#t%3AGType"
>GType</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Bool.html#t%3ABool"
>Bool</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#isA"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Determine if this is an instance of a particular GTK type
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section2"
><A NAME="4"
><A NAME="4"
>Callback support
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><SPAN CLASS="keyword"
>type</SPAN
> <A NAME="t:DestroyNotify"
><A NAME="t%3ADestroyNotify"
></A
></A
><B
>DestroyNotify</B
> = <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3AFunPtr"
>FunPtr</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-Ptr.html#t%3APtr"
>Ptr</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
>)</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#DestroyNotify"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:destroyFunPtr"
><A NAME="v%3AdestroyFunPtr"
></A
></A
><B
>destroyFunPtr</B
> :: <A HREF="System-Glib-GObject.html#t%3ADestroyNotify"
>DestroyNotify</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#destroyFunPtr"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Many methods in classes derived from GObject take a callback function and
 a destructor function which is called to free that callback function when
 it is no longer required. This constants is an address of a functions in
 C land that will free a function pointer.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:destroyStablePtr"
><A NAME="v%3AdestroyStablePtr"
></A
></A
><B
>destroyStablePtr</B
> :: <A HREF="System-Glib-GObject.html#t%3ADestroyNotify"
>DestroyNotify</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#destroyStablePtr"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>The address of a function freeing a <TT
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-StablePtr.html#t%3AStablePtr"
>StablePtr</A
></TT
>. See <TT
><A HREF="System-Glib-GObject.html#v%3AdestroyFunPtr"
>destroyFunPtr</A
></TT
>.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section2"
><A NAME="5"
><A NAME="5"
>User-Defined Attributes
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><SPAN CLASS="keyword"
>type</SPAN
> <A NAME="t:Quark"
><A NAME="t%3AQuark"
></A
></A
><B
>Quark</B
> = <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Foreign-C-Types.html#t%3ACUInt"
>CUInt</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#Quark"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:quarkFromString"
><A NAME="v%3AquarkFromString"
></A
></A
><B
>quarkFromString</B
> :: <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Char.html#t%3AString"
>String</A
> -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="System-Glib-GObject.html#t%3AQuark"
>Quark</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#quarkFromString"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Create a unique id based on the given string.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectCreateAttribute"
><A NAME="v%3AobjectCreateAttribute"
></A
></A
><B
>objectCreateAttribute</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="System-Glib-Attributes.html#t%3AAttr"
>Attr</A
> o (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
> a))</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#objectCreateAttribute"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Add an attribute to this object.
</P
><UL
><LI
> The function returns a new attribute that can be set or retrieved from
 any <TT
><A HREF="System-Glib-GObject.html#t%3AGObject"
>GObject</A
></TT
>. The attribute is wrapped in a <TT
><A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
></TT
> type to reflect
 the circumstance when the attribute is not set or if it should be unset.
</LI
></UL
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectSetAttribute"
><A NAME="v%3AobjectSetAttribute"
></A
></A
><B
>objectSetAttribute</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; <A HREF="System-Glib-GObject.html#t%3AQuark"
>Quark</A
> -&gt; o -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
> a -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> <A HREF="/usr/share/doc/ghc/html/libraries/ghc-prim-0.2.0.0/GHC-Unit.html#t%3A%28%29"
>()</A
></TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#objectSetAttribute"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
>Set the value of an association.
</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="topdecl"
><TABLE CLASS="declbar"
><TR
><TD CLASS="declname"
><A NAME="v:objectGetAttributeUnsafe"
><A NAME="v%3AobjectGetAttributeUnsafe"
></A
></A
><B
>objectGetAttributeUnsafe</B
> :: <A HREF="System-Glib-GObject.html#t%3AGObjectClass"
>GObjectClass</A
> o =&gt; <A HREF="System-Glib-GObject.html#t%3AQuark"
>Quark</A
> -&gt; o -&gt; <A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/System-IO.html#t%3AIO"
>IO</A
> (<A HREF="/usr/share/doc/ghc/html/libraries/base-4.2.0.2/Data-Maybe.html#t%3AMaybe"
>Maybe</A
> a)</TD
><TD CLASS="declbut"
><A HREF="src/System-Glib-GObject.html#objectGetAttributeUnsafe"
>Source</A
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="doc"
><P
>Get the value of an association.
</P
><UL
><LI
> Note that this function may crash the Haskell run-time since the
 returned type can be forced to be anything. See <TT
><A HREF="System-Glib-GObject.html#v%3AobjectCreateAttribute"
>objectCreateAttribute</A
></TT
>
 for a safe wrapper around this funciton.
</LI
></UL
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="botbar"
>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
> version 2.6.1</TD
></TR
></TABLE
></BODY
></HTML
>

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