using touchpad for morse code

[bonie]

Hi guys,
I am just working on my bachelor thesis and I ve got one big problem with C++ programming.
I prepare programming for morse code for mobile phone, and I need to my touchpad will be like touch screen on mobile phone.

and what I need is to devide touchpad into two part, left part and right part, and when I touch left part, it will display dot("."), and when I touch right part it will display dash("-").

this program will be for blind person to write sms on their mobile phones using morse code

thank you very much for each advice and sorry for my english.