| Chapter 19: Illustrations |

| 19.6. Some technicalities

(i) Names for figures, such as "Figure of Woodlands", are values for a special kind of value called "figure-name". This can in turn be used to define variables, properties and phrases:

> The turn card image is a figure-name that varies.

> An Old Master is a kind of thing. An Old Master has a figure-name called appearance. Figure 1 is the file "Giaconda.jpg". The Mona Lisa is an Old Master. The appearance of the Mona Lisa is Figure 1.

> To place (F - a figure-name) in the gallery: ...

(ii) In the released, blorbed-up Glulx file, figures are internally given resource ID numbers which count upwards from 2 in order of their declaration. Resource ID number 1 is reserved for the cover art, if there is any. (See the chapter on Publishing.)

(iii) Glulx hackers may also like to know that whenever Inform 7 builds a project for Glulx, the Inform 6 code it generates always contains a full copy of John Cater's definitive header file "infglk.h".

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