fn should_apps_use_dark_mode()

in src/platform_impl/windows/dark_mode.rs [141:171]

• 26 lines of code
• 3 McCabe index (conditional complexity)

fn should_apps_use_dark_mode() -> bool {
    type ShouldAppsUseDarkMode = unsafe extern "system" fn() -> bool;
    lazy_static! {
        static ref SHOULD_APPS_USE_DARK_MODE: Option<ShouldAppsUseDarkMode> = {
            unsafe {
                const UXTHEME_SHOULDAPPSUSEDARKMODE_ORDINAL: WORD = 132;

                let module = libloaderapi::LoadLibraryA("uxtheme.dll\0".as_ptr() as _);

                if module.is_null() {
                    return None;
                }

                let handle = libloaderapi::GetProcAddress(
                    module,
                    winuser::MAKEINTRESOURCEA(UXTHEME_SHOULDAPPSUSEDARKMODE_ORDINAL),
                );

                if handle.is_null() {
                    None
                } else {
                    Some(std::mem::transmute(handle))
                }
            }
        };
    }

    SHOULD_APPS_USE_DARK_MODE
        .map(|should_apps_use_dark_mode| unsafe { (should_apps_use_dark_mode)() })
        .unwrap_or(false)
}