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RedHat 9 (Linux i386) - man page for option (redhat section n)

option(n)			       Tk Built-In Commands				option(n)

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NAME
       option - Add/retrieve window options to/from the option database

SYNOPSIS
       option add pattern value ?priority?

       option clear

       option get window name class

       option readfile fileName ?priority?
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DESCRIPTION
       The  option  command  allows  you  to add entries to the Tk option database or to retrieve
       options from the database.  The add form of the command adds a new option to the database.
       Pattern	contains  the  option being specified, and consists of names and/or classes sepa-
       rated by asterisks or dots, in the usual X format.  Value contains a text string to  asso-
       ciate  with  pattern;  this is the value that will be returned in calls to Tk_GetOption or
       by invocations of the option get command.  If priority is specified, it indicates the pri-
       ority  level  for  this	option (see below for legal values);  it defaults to interactive.
       This command always returns an empty string.

       The  option  clear  command  clears  the  option  database.   Default  options  (from  the
       RESOURCE_MANAGER  property or the .Xdefaults file) will be reloaded automatically the next
       time an option is added to the database or removed from it.  This command  always  returns
       an empty string.

       The option get command returns the value of the option specified for window under name and
       class.  If several entries in the option database match window, name, and class, then  the
       command	returns  whichever was created with highest priority level.  If there are several
       matching entries at the same priority level, then it  returns  whichever  entry	was  most
       recently  entered  into	the  option database.  If there are no matching entries, then the
       empty string is returned.

       The readfile form of the command reads fileName, which should have the standard format for
       an X resource database such as .Xdefaults, and adds all the options specified in that file
       to the option database.	If priority is specified, it  indicates  the  priority	level  at
       which to enter the options;  priority defaults to interactive.

       The priority arguments to the option command are normally specified symbolically using one
       of the following values:

       widgetDefault
	      Level 20.  Used for default values hard-coded into widgets.

       startupFile
	      Level 40.  Used for options specified in application-specific startup files.

       userDefault
	      Level 60.  Used for options specified in	user-specific  defaults  files,  such  as
	      .Xdefaults,  resource  databases loaded into the X server, or user-specific startup
	      files.

       interactive
	      Level 80.  Used for options specified interactively after  the  application  starts
	      running.	If priority isn't specified, it defaults to this level.

       Any  of	the  above keywords may be abbreviated.  In addition, priorities may be specified
       numerically using integers between 0 and 100, inclusive.  The numeric form is  probably	a
       bad idea except for new priority levels other than the ones given above.

KEYWORDS
       database, option, priority, retrieve

Tk											option(n)


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