drscheme:language:register-capability in DrScheme Tools Functions

• (drscheme:language:register-capability s the-contract default) -> void?
     s : symbol?
     the-contract : contract?
     default : the-contract

  Registers a new capability with a default value for each language and a contract on the values the capability might have.

  By default, these capabilities are registered as DrScheme starts up:

  • (drscheme:language:register-capability 'drscheme:check-syntax-button (flat-contract boolean?) #t) -- controls the visiblity of the check syntax button

  • (drscheme:language:register-capability 'drscheme:language-menu-title (flat-contract string?) (string-constant scheme-menu-name)) -- controls the name of the menu just to the right of the language menu (defaultly named ``Scheme'')

  • (drscheme:language:register-capability 'drscheme:define-popup (or/c (cons/c string? string?) false/c) (cons "(define" "(define ...)")) -- specifies the prefix that the define popup should look for and what label it should have, or #f if it should not appear at all.

  • (drscheme:language:register-capability 'drscheme:special:insert-fraction (flat-contract boolean?) #t) -- determines if the insert fraction menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:insert-lambda (flat-contract boolean?) #t) -- determines if the insert lambda menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:insert-large-letters (flat-contract boolean?) #t) -- determines if the insert large letters menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:insert-image (flat-contract boolean?) #t) -- determines if the insert image menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:insert-comment-box (flat-contract boolean?) #t) -- determines if the insert comment box menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:insert-gui-tool (flat-contract boolean?) #t) -- determines if the insert gui menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:slideshow-menu-item (flat-contract boolean?) #t) -- determines if the insert pict box menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:insert-text-box (flat-contract boolean?) #t) -- determines if the insert text box menu item in the special menu is visible

  • (drscheme:language:register-capability 'drscheme:special:xml-menus (flat-contract boolean?) #t) -- determines if the insert scheme box, insert scheme splice box, and the insert xml box menu item ins the special menu are visible

  • (drscheme:language:register-capability 'drscheme:autocomplete-words (listof string?) '() -- determines the list of words that are used when completing words in this language