C#

private BackgroundWorker myWorker = BackgroundWorker();

//--------------------------------------------------------------------------------
/// <summary>
/// Initializes the background worker thread.
/// </summary>
private void InitEncryptWorker()
{
    myWorker.WorkerReportsProgress	= true;
    myWorker.WorkerSupportsCancellation = true;
    myWorker.DoWork                    += new System.ComponentModel.DoWorkEventHandler(myWorker_DoWork);
    myWorker.RunWorkerCompleted        += new System.ComponentModel.RunWorkerCompletedEventHandler(myWorker_RunWorkerCompleted);
    myWorker.ProgressChanged           += new System.ComponentModel.ProgressChangedEventHandler(myWorker_ProgressChanged);
}

//--------------------------------------------------------------------------------
public void myWorker_DoWork(Object sender, DoWorkEventArgs e)
{
    BackgroundWorker thisWorker = sender as BackgroundWorker;
    
    int progress = 0;
    for (int i = 0; i < 1000; i++)
    {
        if (!thisWork.CancellationPending)
        {
            // do some work here

            // and then report progress
            thisWorker.ReportProgress(progress);
        }
    }
}

//--------------------------------------------------------------------------------
private void myWorker_ProgressChanged(object sender,ProgressChangedEventArgs e)
{
    if (e.ProgressPercentage != this.progressBar.Value)
    {
        this.progressBar.Value = e.ProgressPercentage;
    }
}


//--------------------------------------------------------------------------------
private void myWorker_RunWorkerCompleted(object sender,RunWorkerCompletedEventArgs e)
{
}

John Simmons / outlaw programmer wrote:

C'mon, be a programmer

progress.Value = e.ProgressPercentage;

progress.Invoke(new Action(delegate {
progress.Value = e.ProgressPercentage;
}));

private byte[] GetDeviceID(string AppString)
{
    // Call the GetDeviceUniqueID
    byte[] AppData = Encoding.Unicode.GetBytes(AppString);
    int appDataSize = AppData.Length;
    byte[] DeviceOutput = new byte[20];
    uint SizeOut = 20;
    GetDeviceUniqueID(AppData, appDataSize, 1, DeviceOutput, out SizeOut);
    return DeviceOutput;
}

byte[] id = GetDeviceId("myAppName");

[DllImport("coredll.dll")]
private extern static int GetDeviceUniqueID([In, Out] byte[] appdata,
                       int cbApplictionData,
                        int dwDeviceIDVersion,
                        [In, Out] byte[] deviceIDOuput,
                        out uint pcbDeviceIDOutput);