C#

try
{
  process.PriorityClass = System.Diagnostics.ProcessPriorityClass.BelowNormal ;
}
catch
{
  /* The process probably already exited due to error */
}

PrintDialog pd = new PrintDialog();
if (pd.ShowDialog() == DialogResult.OK)
    {
    ....
    }

Bắt sự kiện nút ok của hộp thoại print

Getting event print dialog's ok button

mauricemcse wrote:

Guidance sought

<pre lang="cs">

</pre>

private void ClickButton(string name)
    {
    if (string.IsNullOrWhiteSpace(name))
        {
        throw new ArgumentNullException("ClickButton: Needs a button name");
        }
    else
        {
        FieldInfo fi = this.GetType().GetField(name);
        if (fi == null)
            {
            throw new ArgumentException(string.Format("ClickButton: Button \"{0}\" not found", name));
            }
        else
            {
            Button bnew = fi.GetValue(this) as Button;
            if (bnew == null)
                {
                throw new ArgumentException(string.Format("ClickButton: \"{0}\" is not a button", name));
                }
            else
                {
                bnew.PerformClick();
                }
            }
        }
    }

private const String ImageFile = @"E:\VC\Projects\CP\InUseImages\Pic.jpg";

private void LoadLockedImage() {
  using (Image temp = Image.FromFile(ImageFile)) {
    pictureBox1.Image = temp;

    // Cannot open the file again, will throw the 'file in use' exception
    using (FileStream fs = new FileStream(ImageFile, FileMode.Open)) {
    }
  }
}

private void LoadFreeImage() {
  using (Image temp = Image.FromFile(ImageFile)) {
    pictureBox1.Image = new Bitmap(temp);
  }

  // Can open the file again, 
  using (FileStream fs = new FileStream(ImageFile, FileMode.Open)) {
  }
}

private void LoadFreeImage2() {
  using (FileStream fs  = new FileStream(ImageFile, FileMode.Open)) {
    pictureBox1.Image = Image.FromStream(fs);
  }

  // Can open the file again
  using (FileStream fs = new FileStream(ImageFile, FileMode.Open)) {
  }
}