LoadableIcon.loadAsync

void loadAsync(int  size,  gio.cancellable.Cancellable cancellable =  null,  gio.types.AsyncReadyCallback callback =  null)

Loads an icon asynchronously. To finish this function, see [gio.loadable_icon.LoadableIcon.loadFinish]. For the synchronous, blocking version of this function, see [gio.loadable_icon.LoadableIcon.load].

Parameters

`size`	an integer.
`cancellable`	optional #GCancellable object, null to ignore.
`callback`	a #GAsyncReadyCallback to call when the request is satisfied