static extern bool GetLayeredWindowAttributes(IntPtr hwnd, out uint crKey, out byte bAlpha, out uint dwFlags);

Public Function GetLayeredWindowAttributes(hwnd as IntPtr, crKey as Uinteger, bAlpha as byte, dwFlags as Uinteger)As <MarshalAs(UnmanagedType.Bool)>Boolean

Declare Function GetLayeredWindowAttributes Lib "user32.dll" (TODO) As TODO