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Tk_InternAtom(3tk) Tk Library Procedures Tk_InternAtom(3tk) 





NAME


Tk_InternAtom, Tk_GetAtomName - manage cache of X atoms






SYNOPSIS


#include <tk.h>

Atom
Tk_InternAtom(tkwin, name)

const char *
Tk_GetAtomName(tkwin, atom)






ARGUMENTS



  
Tk_Window tkwin (in)

  
Token for window. Used to map atom or name relative to a particular
      display.

  
const char *name (in)

  
String name for which atom is desired.

  
Atom atom (in)

  
Atom for which corresponding string name is desired.
    
    

    

  








DESCRIPTION


These procedures are similar to the Xlib procedures
    XInternAtom 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.






KEYWORDS


atom, cache, display







  

    
    Tk