lamp-widget

Arguments: lamp-column-mixin

Returns the value of the lamp-widget property of a grid-column that uses the lamp-column-mixin class. The value may be set when creating the grid column by passing the lamp-widget initarg, or any time later by calling (setf lamp-widget).

The value should be a lamp widget. The widget would be created as usual for a dialog-item by calling make-instance, but typically you would not place the lamp widget onto a parent window like most widgets because it is being used by a grid column instead. Modifying the lamp widget will update the grid column as needed.

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Created 2019.8.20.