Function ImFontAtlas_GetTexDataAsAlpha8

pub unsafe extern "C" fn ImFontAtlas_GetTexDataAsAlpha8(
    self_: *mut ImFontAtlas,
    out_pixels: *mut *mut u8,
    out_width: *mut i32,
    out_height: *mut i32,
    out_bytes_per_pixel: *mut i32,
)