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# ClickPane

 ClickPane represents a clickable pane that displays as image and applies func to the coordinates of each click within the pane. ClickPanespecifies the range of coordinates to use.
• The image in a click pane can be a graphic or any other expression.
• For a Graphics object g, ClickPane by default takes the range of coordinates supplied to func to be the range of graphics coordinates corresponding to PlotRange in g.
• For a general expression, ClickPane takes the range of coordinates to be 0 to 1 in each direction.
Move the point to where the "click" occurred:
Center the disk on mouse clicks:
Move the point to where the "click" occurred:
 Out[1]=

Center the disk on mouse clicks:
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 Applications   (6)
Visualize solutions to a linear system of differential equations :
Keep track of all solutions as you go:
Create a circle from three points :
Detect whether you are inside or outside a disk:
Make a plot where the arrow "snaps" to the curve when you click inside the pane:
Make a plot where the arrow "snaps" to one of the extrema:
ClickPane is a special case of EventHandler:
For a "click" to register, you must press and release the mouse at the same point:
Use EventHandler to get additional flexibility in registering actions with events:
New in 6