tk_getoption(3) [mojave man page]

Tk_GetOption(3) 					       Tk Library Procedures						   Tk_GetOption(3)

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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.
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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

Tk																   Tk_GetOption(3)

Tk_AddOption(3) 					       Tk Library Procedures						   Tk_AddOption(3)

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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.
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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

Tk																   Tk_AddOption(3)