QLineGraph 
 Copyright (c) Jonathan Boles 2002
 

 PROPERTIES

 Height AS Integer  self explanatory
 Width AS Integer  
 Top AS Integer  
 Left AS Integer  
 ExtrapolateToZero AS Boolean  whether the graph should start at 0,0
 AxisColour AS Integer  Colour for axes
 TextColour AS Integer  Colour for text
 BackColour AS Integer  Colour for background
 LineColour AS Integer  Colour for plotted line 
 XTitle AS String  X axis title
 YTitle AS String  Y axis title
 Title AS String  Title for graph
 Data AS QStringGrid  Graph data, stored in form
   x=Data.Cell(0,i) y=Data.Cell(1,i) where  i is an integer
 TextFont AS QFont  Font for graph text
 Visible AS Boolean  
 Hint AS String  
 ShowHint AS Boolean  
 Cursor AS Integer  Cursor for the graph

 METHODS

 SUB Initialise  Initialise graphsystem
 SUB SaveToFile  save graph to .bmp (can't get this 2 work