A callback function to be called when the results of the gtk-clipboard-request-rich-text function are received, or when the request fails.

 lambda (clipboard format text length)  

clipboard

A gtk-clipboard object.

format

The gdk-atom for the format of the rich text.

text

The richt text received, as a UTF-8 encoded string, or null-pointer if retrieving the data failed.

length

An integer with the length of the text.