Function lvgl::widgets::img::decoder_read_line

pub fn decoder_read_line(
    dsc: *mut lv_img_decoder_dsc_t, 
    x: lv_coord_t, 
    y: lv_coord_t, 
    len: lv_coord_t, 
    buf: *mut u8
) -> MynewtResult<lv_res_t>

Read a line from an opened image

• dsc: pointer to lv_img_decoder_dsc_t used in lv_img_decoder_open
• x: start X coordinate (from left)
• y: start Y coordinate (from top)
• len: number of pixels to read
• buf: store the data here Return: LV_RES_OK: success; LV_RES_INV: an error occurred