disable keys in iphone Keyboard with iTGB 1.2

With reference to the iphoneOSkeyboardThread, I have got the iphone keyboard integration with iTGB 1.2 .

I am invoking the keyboard by using the getiPhoneKeyboardInput() console function but i want to disable/hide the multi language button and the numbers button on iphone Keyboard when used in a game. Since the keyboard obtained is not custom to the game, is there a way to disable those two keys?

Thanks