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Never use FL_NO_BOX
as the boxtype for a slider. For
FL_VERT_NICE_SLIDER
s and FL_HOR_NICE_SLIDER
s it’s best
to use a FL_FLAT_BOX
in the color of the background to get the
nicest effect.
The first color argument (col1
) to
fl_set_object_color()
controls the color of the
background of the slider, the second (col2
) the color of the
slider itself.
You can control the size of the slider inside the box using the routine
void fl_set_slider_size(FL_OBJECT *obj, double size);
size
should be a floating point value between 0.0 and 1.0. The
default is
FL_SLIDER_WIDTH
, which is 0.1 for regular sliders and 0.15 for
browser sliders. With a value for size
of 1.0, the slider
covers the box completely and can no longer be moved. This function
does nothing if applied to sliders of type NICE_SLIDER
and
FILL_SLIDER
.
To obtain the current setting of the slider size use
double fl_get_slider_size(FL_OBJECT *obj);
void fl_set_slider_precision(FL_OBJECT *obj, int prec);
sets the precision with which the value of the slider is shown. This
only applies to sliders showing their value, i.e., valsliders. The
argument must be between 0 and
FL_SLIDER_MAX_PREC
(currently set to 10).
By default, the value shown by a valslider is the slider value in floating point format. You can override the default by registering a filter function using the following routine
void fl_set_slider_filter(FL_OBJECT *obj, const char *(*filter)(FL_OBJECT *, double value, int prec));
where value
and prec
are the slider value and precision
respectively. The filter function filter
should return a string
that is to be shown. The default filter is equivalent to the following
const char *filter(FL_OBJECT *obj, double value, int prec) { static char buf[32]; sprintf(buf, "%.*f", prec, value); return buf; }
Next: Slider Remarks, Previous: Other Slider Routines, Up: Slider Object [Contents][Index]