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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>GObject_introspection__Field_info (gobject-introspection.GObject_introspection__Field_info)</title><link rel="stylesheet" href="../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc %%VERSION%%"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><div class="content"><header><nav><a href="../index.html">Up</a> – <a href="../index.html">gobject-introspection</a> &#x00BB; GObject_introspection__Field_info</nav><h1>Module <code>GObject_introspection__Field_info</code></h1><p>Field_info — Struct representing a struct or union field</p></header><dl><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type</span> t</code></dt><dd><p>A Field_info struct represents a field of a struct (see Struct_info), union (see Union_info) or an object (see Object_info). The Field_info is fetched by calling Struct_info.get_field, Union_info.get_field or Object_info.get_field. A field has a size, type and a struct offset asssociated and a set of flags, which is currently GI_FIELD_IS_READABLE or GI_FIELD_IS_WRITABLE.</p></dd></dl><dl><dt class="spec value" id="val-fieldinfo"><a href="#val-fieldinfo" class="anchor"></a><code><span class="keyword">val</span> fieldinfo : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.typ</span></code></dt><dt class="spec value" id="val-get_flags"><a href="#val-get_flags" class="anchor"></a><code><span class="keyword">val</span> get_flags : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><a href="../Bindings/Field_info/index.html#type-flags">Bindings.Field_info.flags</a> list</span></code></dt><dd><p>Obtain the flags for this Field_info. See Field_info.flags for possible flag values.</p></dd></dl><dl><dt class="spec value" id="val-get_offset"><a href="#val-get_offset" class="anchor"></a><code><span class="keyword">val</span> get_offset : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> int</code></dt><dd><p>Obtain the offset in bits of the field member, this is relative to the beginning of the struct or union.</p></dd></dl><dl><dt class="spec value" id="val-get_size"><a href="#val-get_size" class="anchor"></a><code><span class="keyword">val</span> get_size : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> int</code></dt><dd><p>Obtain the size in bits of the field member, this is how much space you need to allocate to store the field.</p></dd></dl><dl><dt class="spec value" id="val-get_type"><a href="#val-get_type" class="anchor"></a><code><span class="keyword">val</span> get_type : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><span><a href="../GObject_introspection/Type_info/index.html#type-t">GObject_introspection.Type_info.t</a> Ctypes.structure</span> Ctypes.ptr</span></code></dt><dd><p>Obtain the type of a field as a Type_info.</p></dd></dl><dl><dt class="spec value" id="val-cast_from_baseinfo"><a href="#val-cast_from_baseinfo" class="anchor"></a><code><span class="keyword">val</span> cast_from_baseinfo : <span><span><a href="../GObject_introspection/Base_info/index.html#type-t">GObject_introspection.Base_info.t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span></code></dt><dd><p>Just cast OCaml Ctypes base info to field info.</p></dd></dl><dl><dt class="spec value" id="val-cast_to_baseinfo"><a href="#val-cast_to_baseinfo" class="anchor"></a><code><span class="keyword">val</span> cast_to_baseinfo : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><span><a href="../GObject_introspection/Base_info/index.html#type-t">GObject_introspection.Base_info.t</a> Ctypes.structure</span> Ctypes.ptr</span></code></dt><dd><p>Just cast OCaml Ctypes field info to base info</p></dd></dl><dl><dt class="spec value" id="val-add_unref_finaliser"><a href="#val-add_unref_finaliser" class="anchor"></a><code><span class="keyword">val</span> add_unref_finaliser : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span></code></dt><dd><p>Add unref of the C underlying structure whith Gc.finalise.</p></dd></dl><dl><dt class="spec value" id="val-from_baseinfo"><a href="#val-from_baseinfo" class="anchor"></a><code><span class="keyword">val</span> from_baseinfo : <span><span><a href="../GObject_introspection/Base_info/index.html#type-t">GObject_introspection.Base_info.t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span></code></dt><dd><p>Return a Field_info.t from a Base_info.t, the underlying C structure ref count is increased and the value is Gc.finalis&quot;ed&quot; with Base_info.baseinfo_unref.</p></dd></dl><dl><dt class="spec value" id="val-to_baseinfo"><a href="#val-to_baseinfo" class="anchor"></a><code><span class="keyword">val</span> to_baseinfo : <span><span><a href="index.html#type-t">t</a> Ctypes.structure</span> Ctypes.ptr</span> <span>&#45;&gt;</span> <span><span><a href="../GObject_introspection/Base_info/index.html#type-t">GObject_introspection.Base_info.t</a> Ctypes.structure</span> Ctypes.ptr</span></code></dt><dd><p>Return a Base_info.t from a Field_info, the underlying C structure ref count is increased and the value is Gc.finalis&quot;ed&quot; with Base_info.baseinfo_unref.</p></dd></dl></div></body></html>