virtual bool ShowSendMessageToUserUI ( int32 LocalUserNum, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & Recipient, const [FShowSendMessageParams](API\Plugins\OnlineSubsystem\Interfaces\FShowSendMessageParams) & ShowParams, const [FOnShowSendMessageUIClosedDelegate](API\Plugins\OnlineSubsystem\Interfaces\FOnShowSendMessageUIClosedDelega-) & Delegate )