[Lcd4linux-devel] [PATCH] adding GPI to picoLCD for reading button events

[Q (I. Mammedov) <nia...@gm...>]

Subj.
Please commit it.

Here is example that lights a led under pressed F1 or F2 button:

Variables {
   n 0
   nkey 0
}

Widget TimerW {
        class 'Timer'
        expression n=LCD::GPI(1);nkey=n!=0?n:nkey
        active 1
        update 100
}

Widget GPO_kf1 {
    class 'GPO'
    expression nkey==3?1:0
    update 300
}

Widget GPO_kf2 {
    class 'GPO'
    expression nkey==4?1:0
    update 300
}

Layout L20x2 {
    Timer1 'TimerW'
    GPO2       'GPO_kf1'
    GPO3       'GPO_kf2'
}