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(action_tile key expression)

Respond when the user clicks a dialog box tile.

This function assigns the expression to evaluate when the user selects the tile referenced by key. Both expression and key are strings; key is case-sensitive. Expression is typically another LISP function; key refers to the tile. This function operates on tiles that are user-selectable elements of a dialog box, such as radio buttons, check boxes, or buttons.

The expression refers to the tile, using the following arguments:

Argument Meaning
$value Current value
$key Tile name
$data Application specific data
$reason Callback reason
$x Image x-coordinate
$y Image y-coordinate


Code Returns
(action_tile "xpt" x_coord) nil


    • The expression assigned by action_tile overrules the default action of the dialog box (which is assigned via the new_dialog function) and the tile's action attribute.
    • The action_tile.

(client_data_table key data)

LISP Compatibility

Programming Overview of DCL (Dialog Control Language)

Programming Overview of LISP (LISt Processing) Language

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