pixmap-value-test

Arguments: object

Returns the name of a function that is used to determine whether two application values of a static-picture or pixmap-column-mixin  grid-column are equivalent. The value may be set at creation time by passing the pixmap-value-test initarg, or any time later by calling (setf pixmap-value-test). The default value of this property is widget-value-equal.

The function should take two arguments, and return true if they are considered equivalent and nil otherwise. The function is called to locate a real application value in the pixmap-alist of the interface object, to find the corresponding pixmap to display.

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This page was not revised from the 8.1 page.
Created 2010.1.21.