Function igImFontAtlasBuildRender8bppRectFromString

pub unsafe extern "C" fn igImFontAtlasBuildRender8bppRectFromString(
    atlas: *mut ImFontAtlas,
    x: i32,
    y: i32,
    w: i32,
    h: i32,
    in_str: *const i8,
    in_marker_char: i8,
    in_marker_pixel_value: u8,
)