Function windows_sys::Win32::UI::Shell::SHEnumerateUnreadMailAccountsW

pub unsafe extern "system" fn SHEnumerateUnreadMailAccountsW(
    hkeyuser: HKEY, 
    dwindex: u32, 
    pszmailaddress: PWSTR, 
    cchmailaddress: i32
) -> HRESULT

Required features: "Win32_UI_Shell", "Win32_System_Registry"