语法：

facebook_launch_offerwall(url)

参数	描述
url	The URL of your facebook currency definition.

返回：

String（字符串）

描述

This implementation enables your app to open a Facebook dialog containing an interactive list of advertiser offers. For further information see FaceBook Developers - Offers With Payments.

注意： this function will only work with the HTML5 target module.

例如：

if mouse_check_button_pressed(mb_left)
   {
   facebook_launch_offerwall("http://facebook.com/game/payments");
   }

The above code checks for a mouse press and if one is detected it takes the user to the FaceBook offerwall page.