<?xml version="1.0" encoding="UTF-8" ?>
<class name="GDExtensionManager" inherits="Object" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
<brief_description>
Provides access to GDExtension functionality.
</brief_description>
<description>
The GDExtensionManager loads, initializes, and keeps track of all available [GDExtension] libraries in the project.
[b]Note:[/b] Do not worry about GDExtension unless you know what you are doing.
</description>
<tutorials>
<link title="GDExtension overview">$DOCS_URL/tutorials/scripting/gdextension/what_is_gdextension.html</link>
<link title="GDExtension example in C++">$DOCS_URL/tutorials/scripting/gdextension/gdextension_cpp_example.html</link>
</tutorials>
<methods>
<method name="get_extension">
<return type="GDExtension" />
<param index="0" name="path" type="String" />
<description>
Returns the [GDExtension] at the given file [param path], or [code]null[/code] if it has not been loaded or does not exist.
</description>
</method>
<method name="get_loaded_extensions" qualifiers="const">
<return type="PackedStringArray" />
<description>
Returns the file paths of all currently loaded extensions.
</description>
</method>
<method name="is_extension_loaded" qualifiers="const">
<return type="bool" />
<param index="0" name="path" type="String" />
<description>
Returns [code]true[/code] if the extension at the given file [param path] has already been loaded successfully. See also [method get_loaded_extensions].
</description>
</method>
<method name="load_extension">
<return type="int" enum="GDExtensionManager.LoadStatus" />
<param index="0" name="path" type="String" />
<description>
Loads an extension by absolute file path. The [param path] needs to point to a valid [GDExtension]. Returns [constant LOAD_STATUS_OK] if successful.
</description>
</method>
<method name="reload_extension">
<return type="int" enum="GDExtensionManager.LoadStatus" />
<param index="0" name="path" type="String" />
<description>
Reloads the extension at the given file path. The [param path] needs to point to a valid [GDExtension], otherwise this method may return either [constant LOAD_STATUS_NOT_LOADED] or [constant LOAD_STATUS_FAILED].
[b]Note:[/b] You can only reload extensions in the editor. In release builds, this method always fails and returns [constant LOAD_STATUS_FAILED].
</description>
</method>
<method name="unload_extension">
<return type="int" enum="GDExtensionManager.LoadStatus" />
<param index="0" name="path" type="String" />
<description>
Unloads an extension by file path. The [param path] needs to point to an already loaded [GDExtension], otherwise this method returns [constant LOAD_STATUS_NOT_LOADED].
</description>
</method>
</methods>
<signals>
<signal name="extension_loaded">
<param index="0" name="extension" type="GDExtension" />
<description>
Emitted after the editor has finished loading a new extension.
[b]Note:[/b] This signal is only emitted in editor builds.
</description>
</signal>
<signal name="extension_unloading">
<param index="0" name="extension" type="GDExtension" />
<description>
Emitted before the editor starts unloading an extension.
[b]Note:[/b] This signal is only emitted in editor builds.
</description>
</signal>
<signal name="extensions_reloaded">
<description>
Emitted after the editor has finished reloading one or more extensions.
</description>
</signal>
</signals>
<constants>
<constant name="LOAD_STATUS_OK" value="0" enum="LoadStatus">
The extension has loaded successfully.
</constant>
<constant name="LOAD_STATUS_FAILED" value="1" enum="LoadStatus">
The extension has failed to load, possibly because it does not exist or has missing dependencies.
</constant>
<constant name="LOAD_STATUS_ALREADY_LOADED" value="2" enum="LoadStatus">
The extension has already been loaded.
</constant>
<constant name="LOAD_STATUS_NOT_LOADED" value="3" enum="LoadStatus">
The extension has not been loaded.
</constant>
<constant name="LOAD_STATUS_NEEDS_RESTART" value="4" enum="LoadStatus">
The extension requires the application to restart to fully load.
</constant>
</constants>
</class>
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