HID Device on IOS7 Of iphone4S/Ipad 3

[sky]

Hello,I have a ble HID device, it can connect iphone4S/Ipad with IOS 7 system, but the function button of (page up /page down) can't work in app wps ppt. but it can work in pc with windows8 System. that's why ? I can't find some good ways to solve it. can you give me some advices?

[Janek Mann]

Do you have any evidence that iOS 7 handles PGUP/PGDOWN in this app normally? Does it work with a regular Bluetooth keyboard? These keys are not normally present on iOS...