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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







  

    
    Tk