tooltip

Arguments: standard-object

Returns or sets with setf the value of the tooltip property of the argument. The value of the tooltip property should be a (short) string or nil. If the value of the tooltip property of an object is a string, that string will be displayed in a tooltip (a small window) when the mouse is over the object (assuming tooltips in general are displayed, see show-tooltips). If the value is nil, no tooltip is displayed.

A tooltip may be given to a widget (dialog-item), a hotspot, or a button-info of a multi-picture-button widget. A tooltip can be set either by passing it as the value of a tooltip initarg to make-instance, or by calling (setf tooltip) later.

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Created 2019.8.20.