winapi::wincrypt::PFN_CERT_ENUM_SYSTEM_STORE_LOCATION

type PFN_CERT_ENUM_SYSTEM_STORE_LOCATION = Option<unsafe extern "system" fn(pwszStoreLocation: LPCWSTR, dwFlags: DWORD, pvReserved: *mut c_void, pvArg: *mut c_void) -> BOOL>;