public static string GetStringPropertyForDevice(IntPtr info, Native.SP_DEVINFO_DATA devdata, DisableHardware.DEVPROPKEY key)
{
uint proptype, outsize;
IntPtr buffer = IntPtr.Zero;
try
{
uint buflen = 512;
buffer = Marshal.AllocHGlobal((int)buflen);
Native.SetupDiGetDevicePropertyW(
info,
ref devdata,
ref key,
out proptype,
buffer,
buflen,
out outsize,
0);
byte[] lbuffer = new byte[outsize];
Marshal.Copy(buffer, lbuffer, 0, (int)outsize);
return(Encoding.Unicode.GetString(lbuffer));
}
finally
{
if (buffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(buffer);
}
}
}