/// <summary>
/// Draws the header's background.
/// </summary>
public void DrawBackground()
{
if (Application.RenderWithVisualStyles)
{
var vsr = new VisualStyleRenderer(VisualStyleElement.Header.Item.Normal);
vsr.DrawBackground(Graphics, Bounds);
}
else
{
using (var backBrush = BackColor.GetCachedSolidBrushScope())
{
Graphics.FillRectangle(backBrush, Bounds);
}
// Draw the 3d header
Rectangle r = Bounds;
r.Width -= 1;
r.Height -= 1;
// Draw the dark border around the whole thing
Graphics.DrawRectangle(SystemPens.ControlDarkDark, r);
r.Width -= 1;
r.Height -= 1;
// Draw the light 3D border
Graphics.DrawLine(SystemPens.ControlLightLight, r.X, r.Y, r.Right, r.Y);
Graphics.DrawLine(SystemPens.ControlLightLight, r.X, r.Y, r.X, r.Bottom);
// Draw the dark 3D Border
Graphics.DrawLine(SystemPens.ControlDark, r.X + 1, r.Bottom, r.Right, r.Bottom);
Graphics.DrawLine(SystemPens.ControlDark, r.Right, r.Y + 1, r.Right, r.Bottom);
}
}
