Tk_GetOption — retrieve an option from the option database
Tk_GetOption(tkwin, name, class)
This procedure is invoked to retrieve an option from the database
associated with tkwin's main window. If there is an option
for tkwin that matches the given name or class,
then it is returned in the form of a Tk_Uid. If multiple options
match name and class, then the highest-priority one
is returned. If no option matches, then NULL is returned.
- Tk_Window tkwin (in)
Token for window.
- const char *name (in)
Name of desired option.
- const char *class (in)
Class of desired option. Null means there is no class for
this option; do lookup based on name only.
Tk_GetOption caches options related to tkwin so that
successive calls for the same tkwin will execute much more
quickly than successive calls for different windows.
class, name, option, retrieve
Copyright © 1990 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.