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Unformatted text preview: DrScheme Fall 2005 Prabhakar Ragde Documentation for the gui-plus.ss Teachpack Language level : Intermediate Student. Teachpack : gui-plus.ss The gui-plus.ss teachpack changes some of the functions in the gui.ss teachpack provided by PLT, and adds more functions to permit the inclusion of a drawing canvas. You should be familiar with gui.ss before attempting to use gui-plus.ss . Changed Functions: create-window now takes an additional argument (the first one) which is a string to be displayed as the title of the window. make-choice has changed as described below. Callback functions now do not consume an event as an argument, but something more sensible, which varies with context, as described below in the functions which consume callbacks. The callback function provided to make-button now consumes the GUI item which is the button that is pressed, so that one callback function can handle multiple buttons if desired....
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- Fall '07
- Height, Function object, callback, Prabhakar Ragde