SHEnumerateUnreadMailAccountsA

winapi_ui_automation::um::shellapi

Function SHEnumerateUnreadMailAccountsA 

Source 
pub unsafe extern "system" fn SHEnumerateUnreadMailAccountsA(
    hKeyUser: HKEY,
    dwIndex: DWORD,
    pszMailAddress: LPSTR,
    cchMailAddress: c_int,
) -> HRESULT