Right, the parameters that need to be passed to createFont are :
width - Width in characters
height - Height in characters
charXWidth - Width of each character
charYWidth - Height of each character
charXOffset - Offset within each step value to start grabbing the characer
charYOffset - Offset within each step value to start grabbing the character
charXStep - Horizontal step value charYStep - Vertical step value
filename - Filename of bitmap to load
chars - Characters contained within the bitmap from left to right and top to bottom.