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- # Copyright (c) 1994 The Regents of the University of California.
- # Copyright (c) 1994-1996 Sun Microsystems, Inc.
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
- #
-
- =head1 NAME
-
- Tk::clipboard - Manipulate Tk clipboard
-
- =for category User Interaction
-
- =head1 SYNOPSIS
-
- I<$widget>-E<gt>B<clipboard>I<Option>?(I<args>)?
-
- =head1 DESCRIPTION
-
- This command provides an interface to the Tk clipboard,
- which stores data for later retrieval using the selection mechanism.
- In order to copy data into the clipboard, B<clipboardClear> must
- be called, followed by a sequence of one or more calls to
- B<clipboardAppend>. To ensure that the clipboard is updated atomically, all
- appends should be completed before returning to the event loop.
-
- The following methods are currently supported:
-
- =over 4
-
- =item I<$widget>-E<gt>B<clipboardClear>
-
- Claims ownership of the clipboard on I<$widget>'s display and removes
- any previous contents. Returns an empty string.
-
- =item I<$widget>-E<gt>B<clipboardAppend>(?B<-format>=E<gt>I<format>?,?B<-type>=E<gt>I<type>?,?B<-->?,I<data>)
-
- Appends I<data> to the clipboard on $widget's
- display in the form given by I<type> with the representation given
- by I<format> and claims ownership of the clipboard on $widget's
- display.
-
- =over 4
-
- I<Type> specifies the form in which the selection is to be returned
- (the desired ``target'' for conversion, in ICCCM terminology), and
- should be an atom name such as STRING or FILE_NAME; see the
- Inter-Client Communication Conventions Manual for complete details.
- I<Type> defaults to STRING.
-
- The I<format> argument specifies the representation that should be
- used to transmit the selection to the requester (the second column of
- Table 2 of the ICCCM), and defaults to STRING. If I<format> is
- STRING, the selection is transmitted as 8-bit ASCII characters.
- See the L<Tk::Selection> documentation for explanation of what happens
- if I<format> is not STRING.
- Note that arguments passed to
- B<clipboardAppend> are concatenated before conversion, so the
- caller must take care to ensure appropriate spacing across string
- boundaries. All items appended to the clipboard with the same
- I<type> must have the same I<format>.
-
- A B<--> argument may be specified to mark the end of options: the
- next argument will always be used as I<data>.
- This feature may be convenient if, for example, I<data> starts
- with a B<->.
-
- =back
-
- =back
-
- =over 4
-
- =item I<$widget>-E<gt>B<clipboardGet>( ?-type? );
-
- Retrieve data from the clipboard on I<widget>'s display.
- I<-type> specifies the form in which the data is
- to be returned and should be an atom name such as STRING or
- FILE_NAME. Type defaults to STRING. This command is equivalent
- to C<selectionGet( -selection =E<gt> 'CLIPBOARD' )>.
-
- =head1 KEYWORDS
-
- clear, format, clipboard, append, selection, type
-
- =cut
-
-