[SOLVED] Adapting MenuBackend library to use strings in PROGMEM

Using Arduino Programming Questions
8

I hate to open up a 'resolved' thread, however, it seems that this library isn't working correctly or that i'm missing something. I've written up a simply menu system and all that is getting returned through serial is jibberish. can anyone help? the library i'm using is the current CMmenus one: http://crazymachine.nicolai-korff.de/downloads/crazymachine_version0.4beta.zip

i've been trying for weeks to get progmem to work with this library and can't seem to get it, i'm about to give up! :cold_sweat:

#include "CMmenus.h"              
#include <avr/pgmspace.h>         


PROGMEM const char a[] = "a";
PROGMEM const char b[] = "b";
PROGMEM const char c[] = "c";
PROGMEM const char d[] = "d";


//this controls the menu backend and the event generation
MenuBackend menu = MenuBackend(menuUseEvent,menuChangeEvent);


MenuItem mi_a = MenuItem(a);
MenuItem mi_b = MenuItem(b);
MenuItem mi_c = MenuItem(c);
MenuItem mi_d = MenuItem(d);

//this function builds the menu and connects the correct items together
void menuSetup()
{
Serial.println("Setting up menu...");
menu.getRoot().add(mi_a);
mi_a.add(mi_b).add(mi_c).add(mi_d);
}


void menuUseEvent(MenuUseEvent used)
{

}

void menuChangeEvent(MenuChangeEvent changed)
{
    Serial.print("Menu change ");
    Serial.print(changed.from.getName());
    Serial.print(" ");
    Serial.println(changed.to.getName());
}

void setup()
{
    Serial.begin(9600);

    menuSetup();
    Serial.println("Starting navigation:\r\nUp: w   Down: s   Left: a   Right: d   Use: e");
}

void loop()
{
    if (Serial.available()) {
        byte read = Serial.read();
        switch (read) {
            case 'w': menu.moveUp(); break;
            case 's': menu.moveDown(); break;
            case 'd': menu.moveRight(); break;
            case 'a': menu.moveLeft(); break;
            case 'e': menu.use(); break;
        }
    }
}