NAME¶
Tk_GetOption - retrieve an option from the option database
SYNOPSIS¶
#include <tk.h>
Tk_Uid
Tk_GetOption(tkwin, name, class)
ARGUMENTS¶
- 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.
DESCRIPTION¶
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_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.
KEYWORDS¶
class, name, option, retrieve