[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ITextInputMethodChangeNotifier](API\Runtime\ApplicationCore\GenericPlatform\ITextInputMethodChangeNotifier) > RegisterContext ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [ITextInputMethodContext](API\Runtime\ApplicationCore\GenericPlatform\ITextInputMethodContext) > & Context )