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GetPoint prompts the user to select a point by clicking on the active planactiveplan, then returns the point coordinates in X and Y. If the user clicks a valid point, the result is 1 (True); otherwise, the result is 0 (False). 

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Procedure: GetPoint(Var X: Double; Var Y: Double; Hint: String): Integer;

API Call:

var
  x, y: double;

begin
  if getpoint(x,y, 'Click a point') = 1 then
    showmessage('Clicked at ' + floattostr(x) + ', ' + floattostr(y))
  else
    showmessage('Canceled');
end;