#include <tk.h> Tk_Font Tk_GetFont(interp, tkwin, string) char * Tk_NameOfFont(tkfont) void Tk_FreeFont(tkfont)
Tk_GetFont maintains a database of all fonts it has allocated. If the same string is requested multiple times (e.g. by different windows or for different purposes), then additional calls for the same string will be handled without involving the platform-specific graphics server.
The procedure Tk_NameOfFont is roughly the inverse of Tk_GetFont. Given a tkfont that was created by Tk_GetFont, the return value is the string argument that was passed to Tk_GetFont to create the font. The string returned by Tk_NameOfFont is only guaranteed to persist until the tkfont is deleted. The caller must not modify this string.
When a font returned by Tk_GetFont is no longer needed, Tk_FreeFont should be called to release it. There should be exactly one call to Tk_FreeFont for each call to Tk_GetFont. When a font is no longer in use anywhere (i.e. it has been freed as many times as it has been gotten) Tk_FreeFont will release any platform-specific storage and delete it from the database.
Copyright © 1989-1994 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.