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<HTML><HEAD><TITLE>Xlib Programming Manual: Controlling the Lifetime of a Window</TITLE></HEAD><BODY><H1 ALIGN=center>9.2 Controlling the Lifetime of a Window</H1>The save-set of a client is a list of other clients' windows that,if they are inferiors of one of the client's windows at connection close,should not be destroyed and should be remapped if they are unmapped.For further information about close-connection processing,see "<A HREF="../display/close-operation.html">X Server Connection Close Operations</A>".To allow an application's window to survive when a window manager thathas reparented a window fails,Xlib provides the save-set functions that you can use to control the longevity of subwindowsthat are normally destroyed when the parent is destroyed.For example, a window manager that wants to add decorationto a window by adding a frame might reparent an application'swindow. When the frame is destroyed,the application's window should not be destroyed but be returned to its previous place in the window hierarchy.<P>The X server automatically removes windows from the save-setwhen they are destroyed.<P>To add or remove a window from the client's save-set, use<B><A HREF="XChangeSaveSet.html">XChangeSaveSet()</A></B>.<P>To add a window to the client's save-set, use<B><A HREF="XAddToSaveSet.html">XAddToSaveSet()</A></B>.<P>To remove a window from the client's save-set, use<B><A HREF="XRemoveFromSaveSet.html">XRemoveFromSaveSet()</A></B>.<H5 ALIGN=right><I>Next: <A HREF="managing-installed-colormap.html">Managing Installed Colormaps</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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