Re: get source of pixmap

> get_args() ? whats that do BTW ?? Ah. Sorry, haven't updated the manual in a while, trying to finish off GtkObject and stay sane :-\ Battle yr way thru the tags & etc ... <method id="gtk.gtkobject.method.get_arg"> <funcsynopsis> <funcprototype> <funcdef>mixed <function>get_arg</function></funcdef> <paramdef>string <parameter>arg_name</parameter></paramdef> </funcprototype> </funcsynopsis> <shortdesc> Returns current argument set. </shortdesc> <desc> <simpara> In most cases where you are likely to need to know the content of an argument, there will be a <literal>get</literal> method in place which is basically a wrapper for <function class="GtkObject">get_arg()</function>. This is good, because there is, unfortunately, no way to know for certain the name of the argument to pass to this function without looking at GTK+ source. A brief tutorial on making sense of what you see there follows. </simpara> <para> An individual widget's arguments are initialized as a set of enumerated values at the beginning of the c file relating to that object. For example, in <filename>gtklabel.c</filename> in GTK 1.2.10 you will see this directly after the includes: <informalexample> <programlisting> enum { ARG_0, ARG_LABEL, ARG_PATTERN, ARG_JUSTIFY, ARG_WRAP }; </programlisting> </informalexample> Around a hundred lines later, these argument types are defined as they are added to the widget, in the <literal>class_init</literal> function: <informalexample> <programlisting> gtk_object_add_arg_type (&quot;GtkLabel::label&quot;, GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_LABEL); gtk_object_add_arg_type (&quot;GtkLabel::pattern&quot;, GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_PATTERN); gtk_object_add_arg_type (&quot;GtkLabel::justify&quot;, GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFY); gtk_object_add_arg_type (&quot;GtkLabel::wrap&quot;, GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_WRAP); </programlisting> </informalexample> </para> <simpara> This gives you the name (in quotes) that you are looking for, the type of data that the argument will consist of, the fact that it is writeable (always), and the name of the original enumerated value to bind this information to. </simpara> <simpara> For <function class="GtkObject">get_arg()</function>, all you really need is the part that is in quotes, which can be surmised by looking at the initial enums. The datatype may, however, be useful information if you need to set an argument and have no other means of doing so than <function class="GtkObject">set_arg()</function>. </simpara> <para> The way you would access this is as follows: <informalexample> <programlisting role="php"> $label = &amp;new GtkLabel('This is an argumentative label'); $arg = $label-&gt;get_arg('GtkLabel::label'); echo $arg.&quot;\n&quot;; </programlisting> </informalexample> </para> </desc> </method> <method id="gtk.gtkobject.method.set_arg"> <funcsynopsis> <funcprototype> <funcdef>void <function>set_arg</function></funcdef> <paramdef>array <parameter>arg_name</parameter></paramdef> </funcprototype> </funcsynopsis> <shortdesc> Sets an argument or arguments on an object. </shortdesc> <desc> <simpara> In most cases, you will find that there is a <literal>set</literal> method in place that is a wrapper function for <function class="GtkObject">set_arg()</function>. In the rare situation where this is not in place, you will need to refer to the GTK source in order to find the argument name expected by this method. There is a short tutorial explaining what to look for, under <function class="GtkObject">get_arg()</function>. </simpara> <para> The syntax used in this method is as follows: <informalexample> <programlisting role="php"> $label-&gt;set_arg(array('GtkLabel::label'=&gt;'RTFS', 'GtkLabel::pattern'=&gt;'____')); </programlisting> </informalexample> </para> </desc> </method>