XDOC is a widget version of DOC_LIBRARY. It is invoked by typing:
where NAME is the name of the procedure to be examined. The text of the input procedure will appear in a scroll window, with buttons to control print the file, and also extracting and copying the file to the current directory as .TXT file. Calling XDOC without a procedure name will produce a menu listing of all the directories and/or libraries that are defined in the current IDL_PATH. The user can subsequently scan the IDL path for any desired procedure by clicking on a particular path element.