gtk:color-selection-previous-rgba (selection)

selection -- a gtk:color-selection widget
rgba -- a gdk:rgba color to set the previous color with

The gtk:color-selection-previous-rgba function gets the previous color. The (setf gtk:color-selection-previous-rgba) function sets the previous color.

This function should be called with some hesitations, as it might seem confusing to have that color change. Calling the gtk:color-selection-current-rgba function will also set this color the first time it is called. The gtk:color-selection-previous-rgba function is deprecated since version 3.4 and should not be used in newly written code.