NAME: XLCT PURPOSE: comme xloadct mais plus cour a ecrire et appelle par defaut la palette palette.tbl qui peut etre situee dans n''importe quel repertoire de !path. CATEGORY: Widgets CALLING SEQUENCE: XLCT INPUTS: None. KEYWORDS: FILE: If this keyword is set, the file by the given name is used instead of the file colors1.tbl in the IDL directory. This allows multiple IDL users to have their own color table file. GROUP = The widget ID of the widget that calls Xlct. When this ID is specified, a death of the caller results in a death of Xlct NCOLORS = number of colors to use. Use color indices from BOTTOM to the smaller of !D.TABLE_SIZE-1 and NCOLORS-1. Default = !D.TABLE_SIZE = all available colors. BOTTOM = first color index to use. Use color indices from BOTTOM to BOTTOM+NCOLORS-1. Default = 0. SILENT - Normally, no informational message is printed when a color map is loaded. If this keyword is present and zero, this message is printed. USE_CURRENT: If set, use the current color tables, regardless of the contents of the COMMON block COLORS. MODAL: If set, then XLCT runs in "modal" mode, meaning that all other widgets are blocked until the user quits XLCT. A group leader must be specified (via the GROUP keyword) for the MODAL keyword to have any effect. The default is to not run in modal mode. BLOCK: Set this keyword to have XMANAGER block when this application is registered. By default the Xmanager keyword NO_BLOCK is set to 1 to provide access to the command line if active command line processing is available. Note that setting BLOCK for this application will cause all widget applications to block, not only this application. For more information see the NO_BLOCK keyword to XMANAGER. UPDATECALLBACK: Set this keyword to a string containing the name of a user-supplied procedure that will be called when the color table is updated by XLCT. The procedure may optionally accept a keyword called DATA, which will be automatically set to the value specified by the optional UPDATECBDATA keyword. UPDATECBDATA: Set this keyword to a value of any type. It will be passed via the DATA keyword to the user-supplied procedure specified via the UPDATECALLBACK keyword, if any. If the UPDATECBDATA keyword is not set the value accepted by the DATA keyword to the procedure specified by UPDATECALLBACK will be undefined. OUTPUTS: None. COMMON BLOCKS: None. SIDE EFFECTS: One of the predefined color maps may be loaded. RESTRICTIONS: This routine uses the LOADCT user library procedure to do the actual work. MODIFICATION HISTORY: