Change Key Functions

[M.A.T.]

Hi developers,

I want to write an elf which changes function of two keys. For example, when I press "key_up" it will go down as if I pressed "key_down". The only thing I want to learn is that how can I send command to phone to perform a "key_down" action when I pressed "key_up". Is this possible? If so, which function I can use?

I also checked library functions and found "void DISP_DESC_SetOnKey( DISP_DESC*, DISP_OBJ_ONKEY_METHOD );" function. If this is what I want, could you please tell me how to use this function?

I hope I was clear enough.

Thanks in advance.

Regards...