TabControl.HotTrack プロパティ


コントロールのタブの上にマウスを置いたときに、タブの外観が変化するかどうかを示す値を取得または設定します。Gets or sets a value indicating whether the control's tabs change in appearance when the mouse passes over them.

 property bool HotTrack { bool get(); void set(bool value); };
public bool HotTrack { get; set; }
member this.HotTrack : bool with get, set
Public Property HotTrack As Boolean


タブの上にマウスを置くと、タブの外観が変化する場合は true。それ以外の場合は falsetrue if the tabs change in appearance when the mouse passes over them; otherwise, false. 既定値は、false です。The default is false.

次のコード例ではTabControl 、2 TabPageつのオブジェクトを持つを作成します。The following code example creates a TabControl with two TabPage objects. true Text myTabPage1プロパティがに設定されます。これによりmyTabPage2 、タブが強調表示されるか、マウスがタブの上に置かれます。 HotTrackThe HotTrack property is set to true, which highlights the tab TextmyTabPage1 or myTabPage2 when the mouse passes over the tabs.

using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public Form
   TabControl^ tabControl1;
   TabPage^ tabPage1;
   TabPage^ tabPage2;
   void MyTabs()
      this->tabControl1 = gcnew TabControl;
      this->tabPage1 = gcnew TabPage;
      this->tabPage2 = gcnew TabPage;
      array<Control^>^tabControls = {this->tabPage1,this->tabPage2};
      this->tabControl1->Controls->AddRange( tabControls );
      this->tabControl1->Padding = Point(15,10);
      this->tabControl1->Location = Point(35,25);
      this->tabControl1->Size = System::Drawing::Size( 220, 220 );
      // Highlights TabPage::Text when the mouse passes over tabs.
      this->tabControl1->HotTrack = true;
      this->tabPage1->Text = "myTabPage1";
      this->tabPage2->Text = "myTabPage2";
      this->Size = System::Drawing::Size( 300, 300 );
      array<Control^>^formControls = {this->tabControl1};
      this->Controls->AddRange( formControls );



int main()
   Application::Run( gcnew Form1 );

using System.Drawing;
using System.Windows.Forms;

public class Form1 : Form
    private TabControl tabControl1;
    private TabPage tabPage1;
    private TabPage tabPage2;

    private void MyTabs()
        this.tabControl1 = new TabControl();
        this.tabPage1 = new TabPage();
        this.tabPage2 = new TabPage();

        this.tabControl1.Controls.AddRange(new Control[] {
        this.tabControl1.Padding = new Point(15, 10);
        this.tabControl1.Location = new Point(35, 25);
        this.tabControl1.Size = new Size(220, 220);

        // Highlights TabPage.Text when the mouse passes over tabs.
        this.tabControl1.HotTrack = true;
        this.tabPage1.Text = "myTabPage1";
        this.tabPage2.Text = "myTabPage2";

        this.Size = new Size(300, 300);
        this.Controls.AddRange(new Control[] {
    public Form1()

    static void Main() 
        Application.Run(new Form1());
Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
    Inherits Form
    Private tabControl1 As TabControl
    Private tabPage1 As TabPage
    Private tabPage2 As TabPage

    Private Sub MyTabs()
        Me.tabControl1 = New TabControl()
        Me.tabPage1 = New TabPage()
        Me.tabPage2 = New TabPage()

        Me.tabControl1.Controls.AddRange(New Control() {Me.tabPage1, Me.tabPage2})
        Me.tabControl1.Padding = New Point(15, 10)
        Me.tabControl1.Location = New Point(35, 25)
        Me.tabControl1.Size = New Size(220, 220)

        ' Highlights TabPage.Text when the mouse passes over tabs.
        Me.tabControl1.HotTrack = True

        Me.tabPage1.Text = "myTabPage1"
        Me.tabPage2.Text = "myTabPage2"

        Me.Size = New Size(300, 300)
        Me.Controls.AddRange(New Control() {Me.tabControl1})
    End Sub

    Public Sub New()
    End Sub

    Shared Sub Main()
        Application.Run(New Form1())
    End Sub
End Class


マウスが上にあるときにタブが変更される色は、ローカルコンピューターのシステムカラーによって決まります。The color that the tab changes to when the mouse is over it is determined by the local computer's system colors. システムカラーを変更するには、コントロールパネルを使用します。To change the system colors, use Control Panel.