g->step_offset = parameter[GFX_ARG_STEP_OFFSET];
g->step_xoffset = parameter[GFX_ARG_STEP_XOFFSET];
g->step_yoffset = parameter[GFX_ARG_STEP_YOFFSET];
g->step_delay = parameter[GFX_ARG_STEP_DELAY];
g->direction = parameter[GFX_ARG_DIRECTION];
g->position = parameter[GFX_ARG_POSITION];
g->step_offset = parameter[GFX_ARG_STEP_OFFSET];
g->step_xoffset = parameter[GFX_ARG_STEP_XOFFSET];
g->step_yoffset = parameter[GFX_ARG_STEP_YOFFSET];
g->step_delay = parameter[GFX_ARG_STEP_DELAY];
g->direction = parameter[GFX_ARG_DIRECTION];
g->position = parameter[GFX_ARG_POSITION];