canvas
- lv_canvas.h
lv_canvas_create()
lv_canvas_set_buffer()
lv_canvas_set_draw_buf()
lv_canvas_set_px()
lv_canvas_set_palette()
lv_canvas_get_draw_buf()
lv_canvas_get_px()
lv_canvas_get_image()
lv_canvas_get_buf()
lv_canvas_copy_buf()
lv_canvas_fill_bg()
lv_canvas_init_layer()
lv_canvas_finish_layer()
lv_canvas_buf_size()
lv_canvas_class