NAME

       dtk_create_line - Create and modify line shape

SYNOPSIS

       #include <drawtk.h>

       dtk_hshape dtk_create_line(dtk_hshape shp,
                       float x1, float y1, float x2, float y2,
                       const float *color);

DESCRIPTION

       dtk_create_line() creates a line between the points (x1,y1) and (x2,y2).

       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)

EPFL                                                  2011                                    DTK_CREATE_LINE(3)