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<HTML><HEAD><TITLE>Xlib Programming Manual: SelectionNotify Events</TITLE></HEAD><BODY><H1 ALIGN=center>10.13.5 SelectionNotify Events</H1><!.IN "Events" "SelectionNotify"><!.IN "SelectionNotify" "" "@DEF@">This event is generated by the X server in response to a<B><A HREF="../../appendix/a.html#ConvertSelection">ConvertSelection</A></B>protocol request when there is no owner for the selection.When there is an owner, it should be generated by the ownerof the selection by using<B><A HREF="../../event-handling/XSendEvent.html">XSendEvent()</A></B>.The owner of a selection should send this event to a requestor when a selectionhas been converted and stored as a propertyor when a selection conversion couldnot be performed (which is indicated by setting the property member to<B>None</B>).<P>If<B>None</B>is specified as the property in the <B><A HREF="../../appendix/a.html#ConvertSelection">ConvertSelection</A></B>protocol request, the owner should choose a property name,store the result as that property on the requestor window,and then send a <B>SelectionNotify</B>giving that actual property name.<A NAME="XSelectionEvent"></A><P>The structure for this event type contains:<P><!.IN "XSelectionEvent" "" "@DEF@"><PRE><CODE>typedef struct { int type; /* SelectionNotify */ unsigned long serial; /* # of last request processed by server */ Bool send_event; /* true if this came from a <B><A HREF="../../appendix/a.html#SendEvent">SendEvent</A></B> request */ Display *display; /* Display the event was read from */ Window requestor; Atom selection; Atom target; Atom property; /* atom or None */ Time time;} XSelectionEvent;</PRE></CODE><P>The <B>requestor</B> member is set to the window associated withthe requestor of the selection.The <B>selection</B> member is set to the atom that indicates the selection.For example, PRIMARY is used for the primary selection.The <B>target</B> member is set to the atom that indicates the converted type.For example, PIXMAP is used for a pixmap.The <B>property</B> member is set to the atom that indicates whichproperty the result was stored on.If the conversion failed, the <B>property</B> member is set to<B>None</B>.The <B>time</B> member is set to the time the conversion took place andcan be a timestamp or<B>CurrentTime</B>.<H5 ALIGN=right><I>Next Chapter: <A HREF="../../event-handling/">Event Handling Functions</A></I></H5><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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