<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <linklocation="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
<paramname="count">Number of bytes in <paramrefname="buf"/>.</param>
<summary>Specifies the type of the method passed to <seecref="M:Gdk.Pixbuf.SaveToCallback"/>.</summary>
<remarks>
<para>It is called once for each block of bytes that is "written" by <seecref="M:Gdk.Pixbuf.SaveToCallback"/>. If successful it should return <seelangword="true"/>. If an error occurs it should set an error and return <seelangword="false"/>, in which case <seecref="M:Gdk.Pixbuf.SaveToCallback"/> will fail with the same error.</para>