The last UI programming work - Virtual Keyboard for RTK1073/1283

This may be my last UI programming works on Realtek 1073/1283. Because default virtual keyboard developed by Realtek is not good to us. Therefore, the boss decided to develop one for ourselves. It is a virtual keyboard for user to input his own PPPoE account and password.

Major functions as below:
0. Key moved by direction buttons, and selected by [OK] button on RC.
1. Two input text fields (ACCOUNT/PASSWORD). Switched by [Next Focus]
2. Upper/Lower case switched by [Caps]
3. Erase by [Delete]
4. Move cursor by [<--] or [-->]
5. Clear current input field by [Clear]
6. Cancel input by [Cancel]
7. Save inputs by [Save]
8. Support multi-language. (EN/SC/TC)