ActiveTabAppearance プロパティ

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinTabs;
using Infragistics.Win.UltraWinTabControl;

private void InitializeTabControl()
{
	// Turn of XP themes support to pick up explicit backcolor
	// setting below
	this.ultraTabControl1.SupportThemes = false;

	// Set the default appearance for all tabs
	this.ultraTabControl1.Appearance.BackColor = Color.Silver;
	this.ultraTabControl1.Appearance.BackColor2 = Color.White;
	this.ultraTabControl1.Appearance.BackGradientStyle = GradientStyle.HorizontalBump;
	this.ultraTabControl1.Appearance.BackGradientAlignment = GradientAlignment.Client;

	// Set the default appearance for the client area
	// which does not include the tab header area 
	this.ultraTabControl1.ClientAreaAppearance.BackColor = Color.Silver;
	this.ultraTabControl1.ClientAreaAppearance.BackColor2 = Color.White;
	this.ultraTabControl1.ClientAreaAppearance.BackGradientStyle = GradientStyle.HorizontalBump;
	this.ultraTabControl1.ClientAreaAppearance.BackGradientAlignment = GradientAlignment.Client;

	// Set a slightly different apperance for the currect 
	// 'ActiveTab' (the tab with focus)
	this.ultraTabControl1.ActiveTabAppearance.ForeColor = Color.Red;

	// Set a slightly different apperance for the currect 
	// 'SelectedTab' (the tab whose tab page is currently visible)
	this.ultraTabControl1.SelectedTabAppearance.ForeColor = Color.Blue;

	// Set the image background to conform and align with the
	// form's BackgroundImage 
	this.ultraTabControl1.TabHeaderAreaAppearance.ImageBackground = this.BackgroundImage;
	this.ultraTabControl1.TabHeaderAreaAppearance.ImageBackgroundOrigin = ImageBackgroundOrigin.Form;

	// Set AutoSelect on so that if the mouse pauses over
	// a tab for half a second the tab will be automatically
	// selected
	this.ultraTabControl1.AutoSelect = true;
	this.ultraTabControl1.AutoSelectDelay = 500;

	// Enable hot tracking (tabs hightlight as the mouse passes over them)
	this.ultraTabControl1.HotTrack = true;
	this.ultraTabControl1.HotTrackAppearance.ForeColor = Color.FromArgb(255,0,255);

	// Allow all tabs but the first tab to be moved
	this.ultraTabControl1.AllowTabMoving = true;
	this.ultraTabControl1.Tabs[0].AllowMoving = DefaultableBoolean.False;
	
	// Set width constraints (in pixels) on the tabs
	this.ultraTabControl1.MinTabWidth = 35;
	this.ultraTabControl1.MaxTabWidth = 100;

	// Set the NavigationStyle property. This determines what
	// happens when the user navigates betwen tabs via the
	// keyboard (i.e. the arrow keys, page up, page down etc.).
	// This assumes that the TabStop property is true and the
	// control has focus.
	this.ultraTabControl1.NavigationStyle = NavigationStyle.AutoSelect;

	// Specify the image size and also to scale larger
	// images down to that size but leave smaller images
	// unchanged. 
	this.ultraTabControl1.ImageSize = new Size(16,16);
	this.ultraTabControl1.ScaleImages = ScaleImage.OnlyWhenNeeded;

	// Specify that separators should be shown between buttons.
	// This is ignored if the Style property is not set to 
	// StateButtons
	this.ultraTabControl1.ShowButtonSeparators = true;

	// Specify that tooltips will be shown when the cursor
	// is paused over a tab.
		// Note: Tooltips will only be displayed for tab's whose
	// 'ToolTipText' property returns a string of at least 1 
	// character or the Tab's 'Text' is not fully visible
	// due to size constraints.
	this.ultraTabControl1.ShowToolTips = true;

	// Specify the style of the tabs
	this.ultraTabControl1.Style = UltraTabControlStyle.StateButtons;

	// Specify the button style. This is ignored if the Style
	// property is not set to StateButtons
	this.ultraTabControl1.TabButtonStyle = UIElementButtonStyle.PopupBorderless;

	// Specify the layout of the tabs. There are various
	// single-row and multi-row TabLayoutStyle's available
	this.ultraTabControl1.TabLayoutStyle = TabLayoutStyle.SingleRowAutoSize;

	// Specify the orientation of the tabs and the text.
	this.ultraTabControl1.TabOrientation = TabOrientation.RightTop;
	this.ultraTabControl1.TextOrientation = TextOrientation.HorizontalPlus90;

	// Specify the size of the tab page.
	// Note: this will cause the control to be resized
	this.ultraTabControl1.TabPageSize = new Size(300, 100);

	// Specify the default size of each tab.
	// Note: the width is ignored untless the TabLayoutStyle is
	// either SingleRowFixed or MultiRowFixed
	this.ultraTabControl1.TabSize = new Size(70, 20);

	// Specify the amount of padding around the text and image
	// when calcualting the size of the tabs.
	this.ultraTabControl1.TabPadding = new Size(3,3);
		
	// Specify whether mnemonics will be supported. If so and
	// there is an '&' in a tab's text, the following character
	// will be treated as an accelerator (i.e. the tab will
	// be activated when the user presses the 'Alt' key and 
	// that character).
	this.ultraTabControl1.UseMnemonics = DefaultableBoolean.True;

}