void* grLibGetUserValueFromPenPoint

(Graph_t* br, Coord x,
  Coord y)

[OPTIONAL]:returns graph data for a point where the stylus taps the screen (if a data point exists there)
NOTE: the return value must be typecast to the proper user data as was initially input by the user.

Documentation

[OPTIONAL]:returns graph data for a point where the stylus taps the screen (if a data point exists there)
NOTE: the return value must be typecast to the proper user data as was initially input by the user.

Parameters:

br - pointer to the data structure of the actual graph
ret - pointer to the returned and filled data structure
x - ,y coordinates where the stylus tapped the screen

Returns:

None

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