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Tk_InternAtom(3)      Tk Library Procedures



Tk_InternAtom, Tk_GetAtomName - manage cache of X atoms


#include <tk.h> Atom Tk_InternAtom(tkwin, name) char * Tk_GetAtomName(tkwin, atom)


Tk_Window tkwin (in) Token for window. Used to map atom or name relative to a particular display. char *name (in) String name for which atom is desired. Atom atom (in) Atom for which corresponding string name is desired. _________________________________________________________________


These procedures are similar to the Xlib procedures XInter- nAtom and XGetAtomName. Tk_InternAtom returns the atom identifier associated with string given by name; the atom identifier is only valid for the display associated with tkwin. Tk_GetAtomName returns the string associated with atom on tkwin's display. The string returned by Tk_GetAtomName is in Tk's storage: the caller need not free this space when finished with the string, and the caller should not modify the contents of the returned string. If there is no atom atom on tkwin's display, then Tk_GetAtomName returns the string ``?bad atom?''. Tk caches the information returned by Tk_InternAtom and Tk_GetAtomName so that future calls for the same information can be serviced from the cache without contacting the server. Thus Tk_InternAtom and Tk_GetAtomName are generally much faster than their Xlib counterparts, and they should be used in place of the Xlib procedures.


atom, cache, display Tk 1 Prepared by Ready-to-Run Software, Inc.


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