Function librgbmatrix_sys::draw_text

pub unsafe extern "C" fn draw_text(
    c: *mut LedCanvas, 
    font: *mut LedFont, 
    x: c_int, 
    y: c_int, 
    r: u8, 
    g: u8, 
    b: u8, 
    utf8_text: *const c_char, 
    kerning_offset: c_int
) -> c_int