TabControl.GetTabRect(Int32) Método

Definición

Espacio de nombres:

System.Windows.Forms

Ensamblado:

System.Windows.Forms.dll

Devuelve el rectángulo delimitador de una pestaña especificada en este control de pestaña.

public:
 System::Drawing::Rectangle GetTabRect(int index);

public System.Drawing.Rectangle GetTabRect (int index);

member this.GetTabRect : int -> System.Drawing.Rectangle

Public Function GetTabRect (index As Integer) As Rectangle

Parámetros

index

Int32

Índice de base cero de la pestaña que desea.

Devoluciones

Rectangle

Un Rectangle que representa los límites de la pestaña especificada.

Excepciones

ArgumentOutOfRangeException

El índice es menor que cero.

-o-

El índice es mayor o igual que Count.

Ejemplos

En el ejemplo de código siguiente se crea un TabControl con un TabPage. En este ejemplo se usa el método GetTabRect para obtener un Rectangle que representa el área de tabulación tabPage1. El evento DrawItem dibuja el myTabRectRectangle.

Use los espacios de nombres System.Drawing y System.Windows.Forms con este ejemplo.

using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public Form
{
private:
   TabControl^ tabControl1;
   Rectangle myTabRect;

public:
   Form1()
   {
      tabControl1 = gcnew TabControl;
      TabPage^ tabPage1 = gcnew TabPage;
      tabControl1->Controls->Add( tabPage1 );
      tabControl1->DrawMode = TabDrawMode::OwnerDrawFixed;
      tabControl1->Location = Point(25,25);
      tabControl1->Size = System::Drawing::Size( 250, 250 );
      tabPage1->TabIndex = 0;
      
      // Gets the tabPage1 tab area defined by its TabIndex.
      // Returns a Rectangle to myTabRect.
      myTabRect = tabControl1->GetTabRect( 0 );
      ClientSize = System::Drawing::Size( 300, 300 );
      Controls->Add( tabControl1 );
      tabControl1->DrawItem += gcnew DrawItemEventHandler( this, &Form1::OnDrawItem );
   }


private:
   void OnDrawItem( Object^ /*sender*/, DrawItemEventArgs^ e )
   {
      Graphics^ g = e->Graphics;
      Pen^ p = gcnew Pen( Color::Blue );
      g->DrawRectangle( p, myTabRect );
   }

};

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

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

public class Form1 : Form
{
    private TabControl tabControl1;
    private Rectangle myTabRect;

    public Form1()
    {
        tabControl1 = new TabControl();
        TabPage tabPage1 = new TabPage();

        tabControl1.Controls.Add(tabPage1);
        tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed;
        tabControl1.Location = new Point(25, 25);
        tabControl1.Size = new Size(250, 250);

        tabPage1.TabIndex = 0;

        // Gets the tabPage1 tab area defined by its TabIndex.
        // Returns a Rectangle to myTabRect.
        myTabRect = tabControl1.GetTabRect(0);

        ClientSize = new Size(300, 300);
        Controls.Add(tabControl1);

        tabControl1.DrawItem += new DrawItemEventHandler(OnDrawItem);
    }
 
    private void OnDrawItem(object sender, DrawItemEventArgs e)
    {
        Graphics g = e.Graphics;
        Pen p = new Pen(Color.Blue);
        g.DrawRectangle(p, myTabRect);
    }

    static void Main() 
    {
        Application.Run(new Form1());
    }
}

Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
    Inherits Form
    Private tabControl1 As TabControl
    Private myTabRect As Rectangle

    Public Sub New()
        tabControl1 = New TabControl()
        Dim tabPage1 As New TabPage()

        tabControl1.Controls.Add(tabPage1)
        tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed
        tabControl1.Location = New Point(25, 25)
        tabControl1.Size = New Size(250, 250)

        tabPage1.TabIndex = 0

        ' Gets the tabPage1 tab area defined by its TabIndex.
        ' Returns a Rectangle to myTabRect.
        myTabRect = tabControl1.GetTabRect(0)

        ClientSize = New Size(300, 300)
        Controls.Add(tabControl1)

        AddHandler tabControl1.DrawItem, AddressOf OnDrawItem
    End Sub

    Private Sub OnDrawItem(ByVal sender As Object, ByVal e As DrawItemEventArgs)
        Dim g As Graphics = e.Graphics
        Dim p As New Pen(Color.Blue)
        g.DrawRectangle(p, myTabRect)
    End Sub

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