Menu Example

//init var(s)
char menu_pos = 0;    //Our Current Position
char menu_end = 10;   //Our Last Position
char menu_sel = 0;    //Our Selected Item

//...

void LoadMenu (pos)
{
  char done = 0;            //Loop until new btn pressed holder
  char state = 0;           //Button Pressed State

  switch(pos)               //Switch based on the POS variable
  {
    case 0:
      PrintLCD(">Item 1",LINE1); //Show user MENU(n)
      PrintLCD("Item 2",LINE2);  //Show user Menu(n+1)
      while(!done)               //Loop until new POS selected (done = 1)
        done = chk_btn;

      if(done == 2)              //or new ITEM selected (done == 2)
        ITEM_1_Function_Call();  //Do Something for that ITEM

      break;                     //BREAK :)
    case 1:
      PrintLCD("Item 1",LINE1);
      PrintLCD(">Item 2",LINE2);
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_2_Function_Call();

      break;
    case 2:
      PrintLCD(">Item 2",LINE1);
      PrintLCD("Item 3",LINE2);
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_2_Function_Call();

      break;
    case 3:
      PrintLCD("Item 2",LINE1);
      PrintLCD(">Item 3",LINE2);
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_3_Function_Call();

      break;
    case 4:
      PrintLCD(">Item 3",LINE1);
      PrintLCD("Item 4",LINE2);
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_3_Function_Call();

      break;
    case 5:
      PrintLCD("Item 3",LINE1);
      PrintLCD(">Item 4",LINE2);
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_4_Function_Call();

      break;
    case 6:
      PrintLCD(">Item 4",LINE1);
      PrintLCD("Item 5",LINE2);
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_4_Function_Call();

      break;
    case 7:
      PrintLCD("Item 4",LINE1);
      PrintLCD(">Item 5",LINE2);;
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_5_Function_Call();

      break;
    case 8:
      PrintLCD(">Item 5",LINE1);
      PrintLCD("Item 6",LINE2);;
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_5_Function_Call();

      break;
    case 9:
      PrintLCD("Item 5",LINE1);
      PrintLCD(">Item 6",LINE2);;
      while(!done)
        done = chk_btn;

      if(done == 2)
        ITEM_6_Function_Call();

      break;
  }
}

//...

char chk_button (char ITEM)
{
  char old_pos = menu_pos;      //Test Variable to determine if new POS is selected
  char old_sel = menu_sel;      //Test Variable to determine if new ITEM is selected

  if(up_button == pressed)      //UP PRESSED = TRUE then INCREMENT MENU_POS var
    if(menu_pos < menu_end) menu_pos++;

  if(dn_button == pressed)      //DOWN PRESSED = TRUE then DECREMENT MENU_POS var
    if(menu_pos > 0) menu_pos--;

  if(sel_button == pressed)     //ENTER/SEL PRESSED = TRUE then SELECTED = ITEM
    menu_sel = ITEM;

  if(menu_pos != old_pos)       //If new POS return a 1
    return 1;

  if(menu_sel != old_sel)       //If new SELECTION return a 2
    return 2;

  return 0;                     //NOTHING NEW RETURN 0

}