C#

[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

public const Int32 PBM_SETBKCOLOR = 0x2001;
public const Int32 PBM_SETBARCOLOR = 0x0409;

public void SetProgressBackColor(Color c)
{/// set the back color of the bar
    int a = c.R;
    int b = c.G;
    int d = c.B;
    int tot = ColorTranslator.ToOle(Color.FromArgb(a, b, d));
    IntPtr j = this.progressBar1.Handle;
    SendMessage(j, PBM_SETBKCOLOR, 0, tot);
}

public void SetProgressForeColor(Color c)
{/// set the forecolor of the bar
    int a = c.R;
    int b = c.G;
    int d = c.B;
    int tot = ColorTranslator.ToOle(Color.FromArgb(a, b, d));
    IntPtr j = this.progressBar1.Handle;
    SendMessage(j, PBM_SETBKCOLOR, 0, tot);
}

private void button1_Click(object sender, EventArgs e)
{
    this.progressBar1.Minimum = 1;
    this.progressBar1.Maximum = 10000;
    this.progressBar1.Step = 1;
    this.progressBar1.Value = 1;
    for (int i = progressBar1.Minimum; i <= progressBar1.Maximum; i++)
    {
        progressBar1.PerformStep();
    }
}

private void button2_Click(object sender, EventArgs e)
{
    SetProgressBackColor(System.Drawing.Color.BlueViolet);
    SetProgressForeColor(System.Drawing.Color.Red);
}

eyalbi007 wrote:

int j = this.Handle.ToInt32();

saksp wrote:

what will be the reasons

using System;
using System.Windows.Forms;

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        Application.Idle += new EventHandler(Application_Idle);
    }

    // this method called when Idle event is raised
    void Application_Idle(object sender, EventArgs e)
    {
        // Do your thing
    }
}

saksp wrote:

I am not able to attach Application.Idle event with the event handler. what will be the reasons??