1TICKIT_PEN_IS_NONEMPTY(3)  Library Functions Manual  TICKIT_PEN_IS_NONEMPTY(3)
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NAME

6       tickit_pen_is_nonempty,  tickit_pen_is_nondefault  -  test if a pen has
7       attributes defined
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SYNOPSIS

10       #include <tickit.h>
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12       bool tickit_pen_is_nonempty(TickitPen *pen);
13       bool tickit_pen_is_nondefault(TickitPen *pen);
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15       Link with -ltickit.
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DESCRIPTION

18       tickit_pen_is_nonempty() tests whether a pen instance has any attribute
19       defined  on  it.  It returns true even if those attributes take default
20       values.
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22       tickit_pen_is_nondefault()  tests  whether  a  pen  instance  has   any
23       attribute  with  non-default  values defined on it. It false if the pen
24       has no defined attributes, or all of the defined attributes  take  only
25       the default value for their type.
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RETURN VALUE

28       tickit_pen_is_nonempty()  and tickit_pen_is_nondefault() return a bool‐
29       ean.
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SEE ALSO

32       tickit_pen_new(3),                         tickit_pen_set_bool_attr(3),
33       tickit_pen_set_int_attr(3),              tickit_pen_set_colour_attr(3),
34       tickit_pen_clear(3), tickit_pen(7), tickit(7)
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38                                                     TICKIT_PEN_IS_NONEMPTY(3)