Tcl8.6.10/Tk8.6.10 Documentation > Tk C API > GetOption
Tcl/Tk Applications | Tcl Commands | Tk Commands | [incr Tcl] Package Commands | SQLite3 Package Commands | TDBC Package Commands | tdbc::mysql Package Commands | tdbc::odbc Package Commands | tdbc::postgres Package Commands | tdbc::sqlite3 Package Commands | Thread Package Commands | Tcl C API | Tk C API | [incr Tcl] Package C API | TDBC Package C API
NAME
Tk_GetOption — retrieve an option from the option databaseSYNOPSIS
#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, retrieveCopyright © 1990 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1994-1996 Sun Microsystems, Inc.