/// <summary>
/// Registers a window to receive notifications when USB devices are plugged or unplugged.
/// </summary>
/// <param name="windowHandle">Handle to the window receiving notifications.</param>
public static void RegisterUsbDeviceNotification(IntPtr windowHandle)
{
DevBroadcastDeviceinterface0 dbi0 = new DevBroadcastDeviceinterface0
{
DeviceType = DBT_DEVTYP_DEVICEINTERFACE,
Reserved = 0,
ClassGuid = GuidDevinterfaceUSBDevice,
Name = 0
};
dbi0.Size = Marshal.SizeOf(dbi0);
IntPtr buffer = Marshal.AllocHGlobal(dbi0.Size);
Marshal.StructureToPtr(dbi0, buffer, true);
notificationHandle = RegisterDeviceNotification(windowHandle, buffer, 0);
}
public static DevBroadcastDeviceinterface GetDevBroadcastDeviceinterface(Message m)
{
DevBroadcastHdr hdr = GetDevBroadcastHdr(m);
if (hdr.DeviceType == DBT_DEVTYP_DEVICEINTERFACE)
{
DevBroadcastDeviceinterface0 dbi0 = (DevBroadcastDeviceinterface0)m.GetLParam(typeof(DevBroadcastDeviceinterface0));
DevBroadcastDeviceinterface dbi = new DevBroadcastDeviceinterface()
{
DeviceType = dbi0.DeviceType, ClassGuid = dbi0.ClassGuid
};
Byte[] bytes = new Byte[hdr.Size];
Marshal.Copy((IntPtr)m.LParam, bytes, 0, hdr.Size);
int offset = Marshal.SizeOf(dbi0) - 2;
dbi.Name = System.Text.Encoding.Unicode.GetString(bytes, offset, bytes.Length - offset);
return(dbi);
}
return(new DevBroadcastDeviceinterface());
}
