69 lines
3.8 KiB
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69 lines
3.8 KiB
HTML
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<HTML><HEAD><TITLE>Tk Built-In Commands - clipboard manual page</TITLE></HEAD><BODY>
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<H3><A NAME="M2">NAME</A></H3>
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clipboard - Manipulate Tk clipboard
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<H3><A NAME="M3">SYNOPSIS</A></H3>
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<B>clipboard </B><I>option</I> ?<I>arg arg ...</I>?<BR>
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<H3><A NAME="M4">DESCRIPTION</A></H3>
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This command provides a Tcl interface to the Tk clipboard,
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which stores data for later retrieval using the selection mechanism.
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In order to copy data into the clipboard, <B>clipboard clear</B> must
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be called, followed by a sequence of one or more calls to <B>clipboard
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append</B>. To ensure that the clipboard is updated atomically, all
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appends should be completed before returning to the event loop.
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<P>
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The first argument to <B>clipboard</B> determines the format of the
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rest of the arguments and the behavior of the command. The following
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forms are currently supported:
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<P>
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<P>
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<DL>
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<P><DT><A NAME="M5"><B>clipboard clear</B> ?<B>-displayof</B> <I>window</I>?</A><DD>
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Claims ownership of the clipboard on <I>window</I>'s display and removes
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any previous contents. <I>Window</I> defaults to ``.''. Returns an
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empty string.
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<P><DT><A NAME="M6"><B>clipboard append</B> ?<B>-displayof</B> <I>window</I>? ?<B>-format</B> <I>format</I>? ?<B>-type</B> <I>type</I>? ?<B>- -</B>? <I>data</I></A><DD>
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Appends <I>data</I> to the clipboard on <I>window</I>'s
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display in the form given by <I>type</I> with the representation given
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by <I>format</I> and claims ownership of the clipboard on <I>window</I>'s
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display.
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<P>
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<I>Type</I> specifies the form in which the selection is to be returned
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(the desired ``target'' for conversion, in ICCCM terminology), and
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should be an atom name such as STRING or FILE_NAME; see the
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Inter-Client Communication Conventions Manual for complete details.
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<I>Type</I> defaults to STRING.
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<P>
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The <I>format</I> argument specifies the representation that should be
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used to transmit the selection to the requester (the second column of
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Table 2 of the ICCCM), and defaults to STRING. If <I>format</I> is
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STRING, the selection is transmitted as 8-bit ASCII characters. If
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<I>format</I> is ATOM, then the <I>data</I> is
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divided into fields separated by white space; each field is converted
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to its atom value, and the 32-bit atom value is transmitted instead of
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the atom name. For any other <I>format</I>, <I>data</I> is divided
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into fields separated by white space and each
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field is converted to a 32-bit integer; an array of integers is
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transmitted to the selection requester. Note that strings passed to
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<B>clipboard append</B> are concatenated before conversion, so the
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caller must take care to ensure appropriate spacing across string
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boundaries. All items appended to the clipboard with the same
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<I>type</I> must have the same <I>format</I>.
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<P>
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The <I>format</I> argument is needed only for compatibility with
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clipboard requesters that don't use Tk. If the Tk toolkit is being
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used to retrieve the CLIPBOARD selection then the value is converted back to
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a string at the requesting end, so <I>format</I> is
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irrelevant.
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<P>A <B>- -</B> argument may be specified to mark the end of options: the
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next argument will always be used as <I>data</I>.
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This feature may be convenient if, for example, <I>data</I> starts
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with a <B>-</B>.
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<P></DL>
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<H3><A NAME="M7">KEYWORDS</A></H3>
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<A href="../Keywords/C.htm#clear">clear</A>, <A href="../Keywords/F.htm#format">format</A>, <A href="../Keywords/C.htm#clipboard">clipboard</A>, <A href="../Keywords/A.htm#append">append</A>, <A href="../Keywords/S.htm#selection">selection</A>, <A href="../Keywords/T.htm#type">type</A>
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<HR><PRE>
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<A HREF="../copyright.htm">Copyright</A> © 1994 The Regents of the University of California.
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<A HREF="../copyright.htm">Copyright</A> © 1994-1996 Sun Microsystems, Inc.
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<A HREF="../copyright.htm">Copyright</A> © 1995-1997 Roger E. Critchlow Jr.</PRE>
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</BODY></HTML>
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