Tk_GetOption(3tk) Tk Library Procedures Tk_GetOption(3tk)__________________________________________________________________________________________________________________________________________________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
TkTk_GetOption(3tk)
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Tk_AddOption(3) Tk Library Procedures Tk_AddOption(3)__________________________________________________________________________________________________________________________________________________NAME
Tk_AddOption - Add an option to the option database
SYNOPSIS
#include <tk.h>
void
Tk_AddOption(tkwin, name, value, priority)
ARGUMENTS
Tk_Window tkwin (in) Token for window.
const char *name (in) Multi-element name of option.
const char *value (in) Value of option.
int priority (in) Overall priority level to use for option.
_________________________________________________________________DESCRIPTION
This procedure is invoked to add an option to the database associated with tkwin's main window. Name contains the option being specified
and consists of names and/or classes separated by asterisks or dots, in the usual X format. Value contains the text string to associate
with name; this value will be returned in calls to Tk_GetOption. Priority specifies the priority of the value; when options are queried
using Tk_GetOption, the value with the highest priority is returned. Priority must be between 0 and TK_MAX_PRIO. Some common priority
values are:
20 Used for default values hard-coded into widgets.
40 Used for options specified in application-specific startup files.
60 Used for options specified in user-specific defaults files, such as .Xdefaults, resource databases loaded into the X server, or
user-specific startup files.
80 Used for options specified interactively after the application starts running.
KEYWORDS
class, name, option, add
TkTk_AddOption(3)
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