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<h1>Object API</h1>
<p>The object API deals with all the operations shared by
<a href="#objects">objects</a>, <a href="#valuetypes">value
types</a>, <a href="#arrays">arrays</a> and <a
href="#nullable">nullable types</a>.
<p>The object API has methods for accessing <a
href="#fields">fields</a>, <a
href="#properties">properties</a>, <a
href="#events">events</a>, <a href="#delegates">delegates</a>.
<p>There are some advanced uses that are useful to document
here dealing with <a href="#async">AsyncResults</a> and <a
href="#remote">remote fields</a>.
<h2>Synopsis</h2>
<div class="header">
#include <metadata/object.h>
typedef struct MonoVTable MonoVTable;
typedef struct _MonoThreadsSync MonoThreadsSync;
typedef struct {
MonoVTable *vtable;
MonoThreadsSync *synchronisation;
} MonoObject;
typedef struct {
guint32 length;
guint32 lower_bound;
} MonoArrayBounds;
typedef struct {
MonoObject obj;
/* bounds is NULL for szarrays */
MonoArrayBounds *bounds;
/* total number of elements of the array */
guint32 max_length;
/* we use double to ensure proper alignment on platforms that need it */
double vector [MONO_ZERO_LEN_ARRAY];
} MonoArray;
@API_IDX@
</div>
<p>MonoObject is the base definition for all managed objects
in the Mono runtime, it represents the <a
href="http://www.mono-project.com/monodoc/T:System.Object">System.Object</a>
managed type.
<p>All objects that derive from <a
href="http://www.mono-project.com/monodoc/T:System.Object">System.Object</a>
do have this base definition. Derived objects are declared
following the pattern where the parent class is the first
field of a structure definition, for example:
<div class="code">
typedef struct {
MonoObject parent;
int my_new_field;
} MyNewObject
</div>
<a name="objects"></a>
<h2>Core Object Methods</h2>
<h4><a name="api:mono_object_new">mono_object_new</a></h4>
<p>For example, if you wanted to create an object of type
System.Version, you would use a piece of code like this:
<div class="code">
MonoClass *version_class;
MonoObject *result;
/* Get the class from mscorlib */
version_class = mono_class_from_name (mono_get_corlib (),
"System", "Version");
/* Create an object of that class */
result = mono_object_new (mono_domain_get (), version_class);
</div>
<h4><a name="api:mono_object_new_alloc_specific">mono_object_new_alloc_specific</a></h4>
<h4><a name="api:mono_object_new_fast">mono_object_new_fast</a></h4>
<h4><a name="api:mono_object_new_from_token">mono_object_new_from_token</a></h4>
<h4><a name="api:mono_object_new_specific">mono_object_new_specific</a></h4>
<h4><a name="api:mono_object_clone">mono_object_clone</a></h4>
<h4><a name="api:mono_object_get_class">mono_object_get_class</a></h4>
<h4><a name="api:mono_object_get_domain">mono_object_get_domain</a></h4>
<h4><a name="api:mono_object_get_virtual_method">mono_object_get_virtual_method</a></h4>
<h4><a name="api:mono_object_isinst_mbyref">mono_object_isinst_mbyref</a></h4>
<h4><a name="api:mono_object_isinst">mono_object_isinst</a></h4>
<h4><a name="api:mono_object_register_finalizer">mono_object_register_finalizer</a></h4>
<h4><a name="api:mono_object_unbox">mono_object_unbox</a></h4>
<h4><a name="api:mono_object_castclass_mbyref">mono_object_castclass_mbyref</a></h4>
<h4><a name="api:mono_object_is_alive">mono_object_is_alive</a></h4>
<h4><a name="api:mono_object_get_size">mono_object_get_size</a></h4>
<a name="valuetypes"></a>
<h2>Value Types</h2>
<h4><a name="api:mono_value_box">mono_value_box</a></h4>
<h4><a name="api:mono_value_copy">mono_value_copy</a></h4>
<h4><a name="api:mono_value_copy_array">mono_value_copy_array</a></h4>
<a name="arrays"></a>
<h2>Array Methods</h2>
<p>Use the <tt>mono_array_new_*</tt> methods to create arrays
of a given type.
<p>For example, the following code creates an array with two
elements of type <tt>System.Byte</tt>, and sets the values
0xca and 0xfe on it:
<pre class="code">
MonoArray *CreateByteArray (MonoDomain *domain)
{
MonoArray *data;
data = mono_array_new (domain, mono_get_byte_class (), 2);
mono_array_set (data, guint8, 0, 0xca);
mono_array_set (data, guint8, 0, 0xfe);
return data;
}
</pre>
<h3>Creating Arrays</h3>
<h4><a name="api:mono_array_new">mono_array_new</a></h4>
<h4><a name="api:mono_array_new_full">mono_array_new_full</a></h4>
<h4><a name="api:mono_array_new_specific">mono_array_new_specific</a></h4>
<h4><a name="api:mono_array_class_get">mono_array_class_get</a></h4>
<h4><a name="api:mono_array_clone_in_domain">mono_array_clone_in_domain</a></h4>
<h4><a name="api:mono_array_clone">mono_array_clone</a></h4>
<h4><a name="api:mono_array_full_copy">mono_array_full_copy</a></h4>
<h4><a name="api:mono_array_to_lparray">mono_array_to_lparray</a></h4>
<h4><a name="api:mono_array_to_savearray">mono_array_to_savearray</a></h4>
<h4><a name="api:mono_dup_array_type">mono_dup_array_type</a></h4>
<h3>Using Arrays</h3>
<h4><a name="api:mono_array_set">mono_array_set</a></h4>
<h4><a name="api:mono_array_setref">mono_array_setref</a></h4>
<h4><a name="api:mono_array_length">mono_array_length</a></h4>
<h4><a name="api:mono_array_addr">mono_array_addr</a></h4>
<h4><a name="api:mono_array_addr_with_size">mono_array_addr_with_size</a></h4>
<h4><a name="api:mono_array_get">mono_array_get</a></h4>
<h4><a name="api:mono_array_element_size">mono_array_element_size</a></h4>
<a name="fields"></a>
<h2>Fields</h2>
<h4><a name="api:mono_field_from_token">mono_field_from_token</a></h4>
<h4><a name="api:mono_field_get_flags">mono_field_get_flags</a></h4>
<h4><a name="api:mono_field_get_name">mono_field_get_name</a></h4>
<h4><a name="api:mono_field_get_parent">mono_field_get_parent</a></h4>
<h4><a name="api:mono_field_get_type">mono_field_get_type</a></h4>
<h4><a name="api:mono_field_get_value">mono_field_get_value</a></h4>
<h4><a name="api:mono_field_get_value_object">mono_field_get_value_object</a></h4>
<h4><a name="api:mono_field_set_value">mono_field_set_value</a></h4>
<h4><a name="api:mono_field_static_get_value">mono_field_static_get_value</a></h4>
<h4><a name="api:mono_field_static_set_value">mono_field_static_set_value</a></h4>
<a name="properties"></a>
<h2>Properties</h2>
<h4><a name="api:mono_property_get_flags">mono_property_get_flags</a></h4>
<h4><a name="api:mono_property_get_get_method">mono_property_get_get_method</a></h4>
<h4><a name="api:mono_property_get_name">mono_property_get_name</a></h4>
<h4><a name="api:mono_property_get_parent">mono_property_get_parent</a></h4>
<h4><a name="api:mono_property_get_set_method">mono_property_get_set_method</a></h4>
<h4><a name="api:mono_property_get_value">mono_property_get_value</a></h4>
<h4><a name="api:mono_property_set_value">mono_property_set_value</a></h4>
<a name="events"></a>
<h2>Events</h2>
<h4><a name="api:mono_event_get_add_method">mono_event_get_add_method</a></h4>
<h4><a name="api:mono_event_get_flags">mono_event_get_flags</a></h4>
<h4><a name="api:mono_event_get_name">mono_event_get_name</a></h4>
<h4><a name="api:mono_event_get_parent">mono_event_get_parent</a></h4>
<h4><a name="api:mono_event_get_raise_method">mono_event_get_raise_method</a></h4>
<h4><a name="api:mono_event_get_remove_method">mono_event_get_remove_method</a></h4>
<a name="delegates"></a>
<h2>Delegates</h2>
<h4><a name="api:mono_delegate_ctor">mono_delegate_ctor</a></h4>
<a name="async"></a>
<h2>AsyncResults</h2>
<h4><a name="api:mono_async_result_new">mono_async_result_new</a></h4>
<a name="remote"></a>
<h2>Remote Fields</h2>
<h4><a name="api:mono_load_remote_field">mono_load_remote_field</a></h4>
<h4><a name="api:mono_load_remote_field_new">mono_load_remote_field_new</a></h4>
<h4><a name="api:mono_store_remote_field">mono_store_remote_field</a></h4>
<h4><a name="api:mono_store_remote_field_new">mono_store_remote_field_new</a></h4>
<a name="nullable"></a>
<h2>Nullable Objects</h2>
<p>These methods are used to manipulate objects of type
System.Nullable<T>
<h4><a name="api:mono_nullable_box">mono_nullable_box</a></h4>
<h4><a name="api:mono_nullable_init">mono_nullable_init</a></h4>
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