Function imgui_sys::ImFontAtlas_AddFontFromMemoryTTF

pub unsafe extern fn ImFontAtlas_AddFontFromMemoryTTF(
    atlas: *mut ImFontAtlas, 
    ttf_data: *mut c_void, 
    ttf_size: c_int, 
    size_pixels: c_float, 
    font_cfg: *const ImFontConfig, 
    glyph_ranges: *const ImWchar
) -> *mut ImFont