C#

finally
{
if (pi.hProcess != IntPtr.Zero)
CloseHandle(pi.hProcess);
if (pi.hThread != IntPtr.Zero)
CloseHandle(pi.hThread);
if (hDupedToken != IntPtr.Zero)
CloseHandle(hDupedToken);
}

private void AutoSizeCustomMenuItem(ToolStripMenuItem oMenuItem, string sText)
{
  int iPreferredHeight = 50;
  int iPreferredWidth = 0;
  int iPadding = 50;
  SizeF oSizeSpace = SizeF.Empty;

  using (Graphics oGraphics = oMenuItem.Owner.CreateGraphics())
  {
    iPreferredWidth = (int)oGraphics.MeasureString(sText, oMenuItem.Font).Width + iPadding;
    oSizeSpace = oGraphics.MeasureString(" ", oMenuItem.Font);
  }

  int iSpacesWidth = (int)Math.Ceiling((double)(iPreferredWidth / oSizeSpace.Width));
  int iSpacesHeight = (int)Math.Ceiling((double)(iPreferredHeight / oSizeSpace.Height));
  string sSpacesWidth = new String(' ', iSpacesWidth);

  StringBuilder sbMenuItemText = new StringBuilder();
  if (iSpacesHeight > 0)
  {
    string sLineDivider = String.Empty;
    for (int i = 0; i < iSpacesHeight; i++)
    {
      sbMenuItemText.Append(sLineDivider);
      sbMenuItemText.Append(sSpacesWidth);
      sLineDivider = "\r\n";
    }
  }
  oMenuItem.Text = sbMenuItemText.ToString();
}

• Hit-testing individual shapes - i.e. determining whether the mouse is over a shape, and if so, which one of the shapes on your control it is over.
• Hit-testing the entire control - i.e. determining whether the mouse is over any drawn object on the control
• Determining redraw or clipping areas

var gp = new GraphicsPath();
gp.AddEllipse(myCircleRect1); //bounds of the first ellipse to be drawn, as would be passed to Graphics.DrawEllipse()
gp.AddEllipse(myCircleRect2); //ditto