tickit_window_ctlname() returns the name of the given window control. These names are the lowercase
strings given in tickit_window(7).
tickit_window_lookup_ctl() returns the control constant for a given name. If the name is not recognised
then -1 is returned.
tickit_window_ctltype() returns the type of the given window control, as one of the following constants:
TICKIT_TYPE_BOOL
The value is an integer representing a simple boolean choice, where any nonzero value is true. Use
tickit_window_setctl_int(3) and tickit_window_getctl_int(3).
TICKIT_TYPE_INT
The value is an integer representing a quantity, or a value in some particular enumeration. Use
tickit_window_setctl_int(3) and tickit_window_getctl_int(3).
For unrecognised control types, the function returns 0.