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<HTML><HEAD><TITLE>Xlib Programming Manual: XSetSelectionOwner</TITLE></HEAD><BODY><H1 ALIGN=center>XSetSelectionOwner</H1><H2>Syntax</H2><!.IN "Selection" "setting the owner"><!.IN "XSetSelectionOwner" "" "@DEF@"><CODE><PRE>XSetSelectionOwner(<B>display</B>, <B>selection</B>, <B>owner</B>, <B>time</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="properties-and-atoms.html">Atom</A> <B>selection</B>; <A HREF="../window/">Window</A> <B>owner</B>; <A HREF="../input/pointer-grabbing.html#Time">Time</A> <B>time</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>selection</B><TD> Specifies the selection atom.<TR><TD> <B>owner</B><TD> Specifies the owner of the specified selection atom.You can pass a window or<B>None</B> .<TR><TD> <B>time</B><TD> Specifies the time.You can pass either a timestamp or<B>CurrentTime</B>.</TABLE><H2>Description</H2>The<B>XSetSelectionOwner()</B>function changes the owner and last-change time for the specified selectionand has no effect if the specified time is earlier than the currentlast-change time of the specified selection or is later than the current X server time.Otherwise, the last-change time is set to the specified time,with<B>CurrentTime</B>replaced by the current server time.If the owner window is specified as<B>None</B> ,then the owner of the selection becomes <B>None</B>(that is, no owner).Otherwise, the owner of the selection becomes the client executingthe request.<P> If the new owner (whether a client or<B>None</B> )is notthe same as the current owner of the selection and the currentowner is not<B>None</B> ,the current owner is sent a <B><A HREF="../events/client-communication/selection-clear.html">SelectionClear</A></B> event.If the client that is the owner of a selection is laterterminated (that is, its connection is closed)or if the owner window it has specified in the request is laterdestroyed,the owner of the selection automaticallyreverts to<B>None</B> ,but the last-change time is not affected.The selection atom is uninterpreted by the X server.<B><A HREF="XGetSelectionOwner.html">XGetSelectionOwner()</A></B>returns the owner window, which is reported in <B><A HREF="../events/client-communication/selection-request.html">SelectionRequest</A></B>and<B><A HREF="../events/client-communication/selection-clear.html">SelectionClear</A></B>events.Selections are global to the X server.<P><B>XSetSelectionOwner()</B>can generate<B>BadAtom</B>and<B>BadWindow</B> errors.<H2>Diagnostics</H2><TABLE><TR><TD><B>BadAtom</B><TD> A value for an Atom argument does not name a defined Atom.<TR><TD><B>BadWindow</B><TD>A value for a Window argument does not name a defined Window.</TABLE><H2>See also</H2><B><A HREF="XConvertSelection.html">XConvertSelection()</A></B>,<B><A HREF="XGetSelectionOwner.html">XGetSelectionOwner()</A></B>,"<A HREF="selection.html">Selections</A>".<HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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