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NAME

       scopedobject - Create and manipulate a scoped [incr Tcl] class object.

SYNOPSIS

       scopedobject objName ?options?

INHERITANCE

       None

STANDARD OPTIONS

       Name:     enterscopecommand:
       Command-Line Switch:     -enterscopecommand

              Specifies  a  Tcl  command to invoke when an object enters scope
              (i.e. when it is created..). The default is {}.

       Name:     enterscopecommand:
       Command-Line Switch:     -enterscopecommand

              Specifies a Tcl command to invoke when  an  object  exits  scope
              (i.e. when it is deleted..). The default is {}.

______________________________________________________________________________

DESCRIPTION

       The scopedobject command creates a base class for defining Itcl classes
       which posses scoped behavior like Tcl variables.  The objects are  only
       accessible  within the procedure in which they are instantiated and are
       deleted when the procedure returns.  This class was designed  to  be  a
       general purpose base class for supporting scoped incr Tcl classes.  The
       options include the execute a Tcl script command when an object  enters
       and exits its scope.

METHODS

       The  scopedobject  command  creates  a  new  Tcl  command whose name is
       pathName.  This command may be used to invoke various operations on the
       object.   It  has  the following general form: pathName option ?arg arg
       ...?  Option and the args determine the exact behavior of the  command.
       The following commands are possible for scopedobject objects:

OBJECT-SPECIFIC METHODS

       pathName cget option
              Returns  the  current value of the configuration option given by
              option.  Option may have any  of  the  values  accepted  by  the
              scopedobject command.

       pathName configure ?option? ?value option value ...?
              Query  or modify the configuration options of the object.  If no
              option is specified,  returns  a  list  describing  all  of  the
              available  options for pathName.  If option is specified with no
              value, then the command returns a list describing the one  named
              option (this list will be identical to the corresponding sublist
              of the value returned if no option is  specified).   If  one  or
              more option-value pairs are specified, then the command modifies
              the given objects option(s) to have the given value(s);  in this
              case  the  command returns an empty string.  Option may have any
              of the values accepted by the scopedobject command.

EXAMPLE

              The scopedobject was primarily meant to be a  base  class.   The
              following is an example of usage without inheritance:

         proc scopedobject_demo {} {
           iwidgets::scopedobject #auto         -exitscopecommand {puts "enter
       scopedobject_demo"}             -exitscopecommand      {puts      "exit
       scopedobject_demo"}
         }

         scopedobject_demo

AUTHOR

       John A. Tucker

KEYWORDS

       scopedobject, object



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