Providers are ThunarxProviderPlugins loaded from shared libraries installed in $libdir/thunarx-2/. The shared libraries are linked against the thunarx-2 library.

The extensions must provide three public functions, thunar_extension_initialize(), thunar_extension_shutdown() and thunar_extension_list_types().

thunar_extension_initialize() is passed a ThunarxProviderPlugin object, and is responsible to register all GTypes required by the extension. thunar_extension_shutdown() should perform any extension-specific shutdown required prior to unloading the extension. thunar_extension_list_types() returns an array of GTypes that represent the types of the providers exported by the extension. Thunar will instantiate objects of those types when needed.

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