DOKK / manpages / debian 13 / tk9.0-doc / Tk_AddOption.3tk.en
Tk_AddOption(3tk) Tk Library Procedures Tk_AddOption(3tk) 







Tk_AddOption - Add an option to the option database








#include <tk.h>

void
Tk_AddOption(tkwin, name, value, priority)

Tcl_Obj *
Tk_GetSystemDefault(tkwin, dbName, className)









  
Tk_Window tkwin (in)

  
Token for window.

  
const char *name (in)

  
Multi-element name of option.

  
const char *value (in)

  
Value of option.

  
const char *dbName (in)

  
The option database name.

  
const char *className (in)

  
The name of the option class.

  
int priority (in)

  
Overall priority level to use for option.
    
    

    

  










Tk_AddOption 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 (100). Some common priority values are:



  

  
Used for default values hard-coded into widgets.

  

  
Used for options specified in application-specific startup files.

  

  
Used for options specified in user-specific defaults files, such as
      .Xdefaults, resource databases loaded into the X server, or
      user-specific startup files.

  

  
Used for options specified interactively after the application starts
      running.




Tk_GetSystemDefault returns a Tcl_Obj* with the string
    identifying a configuration option matching the given dbname and
    className. Returns NULL if there are no system defaults that match
    this pair.








class, name, option, add







  

    
    Tk