public void Open(string driver = null, string device = null)
{
IntPtr driverPtr = IntPtr.Zero;
IntPtr devicePtr = IntPtr.Zero;
if (driver != null)
{
driverPtr = Marshal.StringToHGlobalAnsi(driver);
}
if (device != null)
{
devicePtr = Marshal.StringToHGlobalAnsi(device);
}
Out123.Errors error = Out123NativeMethods.Open(handle, driverPtr, devicePtr);
if (driverPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(driverPtr);
}
if (devicePtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(devicePtr);
}
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(this);
}
}
