NAME¶
dtk_create_cross - Create and modify cross shape
SYNOPSIS¶
#include <drawtk.h>
dtk_hshape dtk_create_cross(dtk_hshape shp,
float cx, float cy, float width,
const float *color);
DESCRIPTION¶
dtk_create_cross() creates a cross whose centered is located at (
cx,
cy) with a length of
width.
shp and
color have the same usage and meaning as for other shape
creation function:
- *
- shp can be used to modify a previously created
shape. If it is non-null, the handle will be used to modify the shape
referenced by shp: no new shape is created and the returned value
is ensured to be shp in case of success, NULL otherwise. If
shp is NULL, the function will attempt to create a new
shape.
- *
- color should point to a 4 float array containing a
normalized RGBA value (i.e. each component is between 0.0 and 1.0).
RETURN VALUE¶
In case of success these functions return the handle to the newly created or
modified shape. If the
shp argument is non-null, the handle returned is
the same value. In case of error,
NULL is returned.
SEE ALSO¶
dtk_destroy_shape(3)