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clickb
clickb ( )

returns integer_expression

Returns the buttons that the user last clicked on the mouse (if over the graphic output). Returns 0 if no click has been recorded.

# clear any prior mouse click
clickclear
# wait for the user to click the mouse
print "click mouse on the graphics output"
while clickb = 0
  pause .01
endwhile
# show where the user clicked
print "The user clicked at (" + clickx + "," + clicky + ")"