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MSDN
MSDN ライブラリ
.NET 開発
.NET Framework 3.5
.NET Framework 3.5
System.Windows.Forms 名前空間
ToolTip クラス
ToolTip プロパティ
 OwnerDraw プロパティ
すべて縮小/すべて展開 すべて縮小
このページは次のバージョンについて記述しています。
Microsoft Visual Studio 2008/.NET Framework 3.5

その他のバージョンについては、以下の情報を参照してください。
.NET Framework クラス ライブラリ
ToolTip..::.OwnerDraw プロパティ

更新 : 2007 年 11 月

ツールヒントを、オペレーティング システムと独自のコードのどちらによって描画するのかを示す値を取得または設定します。

名前空間 :  System.Windows.Forms
アセンブリ :  System.Windows.Forms (System.Windows.Forms.dll 内)

Visual Basic (宣言)
Public Property OwnerDraw As Boolean
Visual Basic (使用法)
Dim instance As ToolTip
Dim value As Boolean

value = instance.OwnerDraw

instance.OwnerDraw = value
C#
public bool OwnerDraw { get; set; }
Visual C++
public:
property bool OwnerDraw {
    bool get ();
    void set (bool value);
}
J#
/** @property */
public boolean get_OwnerDraw()
/** @property */
public  void set_OwnerDraw(boolean value)
JScript
public function get OwnerDraw () : boolean
public function set OwnerDraw (value : boolean)

プロパティ値

型 : System..::.Boolean

独自のコードによって ToolTip を描画する場合は true。オペレーティング システムによって ToolTip を描画する場合は false。既定値は false です。

通常、ToolTip はオペレーティング システムによって描画されますが、ToolTip の外観をカスタマイズするには、OwnerDraw プロパティを true に設定し、Draw イベントを処理します。

ToolTip をオーナー描画する方法を次のコード例に示します。この例では、ToolTip を作成し、Form 上にある 3 つの Button コントロールに関連付けています。また、OwnerDraw プロパティを true に設定し、Draw イベントを処理しています。Draw イベント ハンドラでは、どのボタンで ToolTip が表示されるかをDrawToolTipEventArgs..::.AssociatedControl プロパティで指定し、それによって ToolTip がカスタムで描画されます。

Visual Basic
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles

Public Module ToolTipExampleApp
    ' The main entry point for the application.
    <STAThread()> _
    Sub Main()
        Application.Run(New ToolTipExampleForm)
    End Sub
End Module

' Form for the ToolTip example.
Public Class ToolTipExampleForm
    Inherits System.Windows.Forms.Form

    Private WithEvents toolTip1 As System.Windows.Forms.ToolTip
    Private WithEvents button1 As System.Windows.Forms.Button
    Private WithEvents button2 As System.Windows.Forms.Button
    Private WithEvents button3 As System.Windows.Forms.Button

    Public Sub New()
        ' Create the ToolTip and set initial values.
        Me.toolTip1 = New System.Windows.Forms.ToolTip
        Me.toolTip1.AutoPopDelay = 5000
        Me.toolTip1.InitialDelay = 500
        Me.toolTip1.OwnerDraw = True
        Me.toolTip1.ReshowDelay = 10

        ' Create button1 and set initial values.
        Me.button1 = New System.Windows.Forms.Button
        Me.button1.Location = New System.Drawing.Point(8, 8)
        Me.button1.Text = "Button 1"
        Me.toolTip1.SetToolTip(Me.button1, "Button1 tip text")

        ' Create button2 and set initial values.
        Me.button2 = New System.Windows.Forms.Button
        Me.button2.Location = New System.Drawing.Point(8, 32)
        Me.button2.Text = "Button 2"
        Me.toolTip1.SetToolTip(Me.button2, "Button2 tip text")

        ' Create button3 and set initial values.
        Me.button3 = New System.Windows.Forms.Button
        Me.button3.Location = New System.Drawing.Point(8, 56)
        Me.button3.Text = "Button 3"
        Me.toolTip1.SetToolTip(Me.button3, "Button3 tip text")

        ' Set up the Form.
        Me.Controls.AddRange(New Control() {Me.button1, _
                                            Me.button2, _
                                            Me.button3})
        Me.Text = "owner drawn ToolTip example"
    End Sub

    ' Clean up any resources being used.        
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If (disposing) Then
            toolTip1.Dispose()
        End If

        MyBase.Dispose(disposing)
    End Sub

    ' Determines the correct size for the button2 ToolTip.
    Private Sub toolTip1_Popup(ByVal sender As System.Object, _
        ByVal e As PopupEventArgs) Handles toolTip1.Popup

        If e.AssociatedControl Is button2 Then

            Dim f As New Font("Tahoma", 9)
            Try
                e.ToolTipSize = TextRenderer.MeasureText( _
                    toolTip1.GetToolTip(e.AssociatedControl), f)
            Finally
                f.Dispose()
            End Try

        End If
    End Sub

    ' Handles drawing the ToolTip.
    Private Sub toolTip1_Draw(ByVal sender As System.Object, _
        ByVal e As DrawToolTipEventArgs) Handles toolTip1.Draw
        ' Draw the ToolTip differently depending on which 
        ' control this ToolTip is for.

        ' Draw a custom 3D border if the ToolTip is for button1.
        If (e.AssociatedControl Is button1) Then
            ' Draw the standard background.
            e.DrawBackground()

            ' Draw the custom border to appear 3-dimensional.
            e.Graphics.DrawLines( _
                SystemPens.ControlLightLight, New Point() { _
                New Point(0, e.Bounds.Height - 1), _
                New Point(0, 0), _
                New Point(e.Bounds.Width - 1, 0)})
            e.Graphics.DrawLines( _
                SystemPens.ControlDarkDark, New Point() { _
                New Point(0, e.Bounds.Height - 1), _
                New Point(e.Bounds.Width - 1, e.Bounds.Height - 1), _
                New Point(e.Bounds.Width - 1, 0)})

            ' Specify custom text formatting flags.
            Dim sf As TextFormatFlags = TextFormatFlags.VerticalCenter Or _
                                 TextFormatFlags.HorizontalCenter Or _
                                 TextFormatFlags.NoFullWidthCharacterBreak

            ' Draw standard text with customized formatting options.
            e.DrawText(sf)
        ElseIf (e.AssociatedControl Is button2) Then
            ' Draw a custom background and text if the ToolTip is for button2.

            ' Draw the custom background.
            e.Graphics.FillRectangle(SystemBrushes.ActiveCaption, e.Bounds)

            ' Draw the standard border.
            e.DrawBorder()

            ' Draw the custom text.
            Dim sf As StringFormat = New StringFormat
            Try
                sf.Alignment = StringAlignment.Center
                sf.LineAlignment = StringAlignment.Center
                sf.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.None
                sf.FormatFlags = StringFormatFlags.NoWrap

                Dim f As Font = New Font("Tahoma", 9)
                Try
                    e.Graphics.DrawString(e.ToolTipText, f, _
                        SystemBrushes.ActiveCaptionText, _
                        RectangleF.op_Implicit(e.Bounds), sf)
                Finally
                    f.Dispose()
                End Try
            Finally
                sf.Dispose()
            End Try
        ElseIf (e.AssociatedControl Is button3) Then
            ' Draw the ToolTip using default values if the ToolTip is for button3.
            e.DrawBackground()
            e.DrawBorder()
            e.DrawText()
        End If
    End Sub
End Class
C#
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;

namespace ToolTipExample
{
    // Form for the ToolTip example.
    public class ToolTipExampleForm : System.Windows.Forms.Form
    {
        private System.Windows.Forms.ToolTip toolTip1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;

        public ToolTipExampleForm()
        {
            // Create the ToolTip and set initial values.
            this.toolTip1 = new System.Windows.Forms.ToolTip();
            this.toolTip1.AutoPopDelay = 5000;
            this.toolTip1.InitialDelay = 500;
            this.toolTip1.OwnerDraw = true;
            this.toolTip1.ReshowDelay = 10;
            this.toolTip1.Draw += new DrawToolTipEventHandler(this.toolTip1_Draw);
            this.toolTip1.Popup += new PopupEventHandler(toolTip1_Popup);

            // Create button1 and set initial values.
            this.button1 = new System.Windows.Forms.Button();
            this.button1.Location = new System.Drawing.Point(8, 8);
            this.button1.Text = "Button 1";
            this.toolTip1.SetToolTip(this.button1, "Button1 tip text");

            // Create button2 and set initial values.
            this.button2 = new System.Windows.Forms.Button();
            this.button2.Location = new System.Drawing.Point(8, 32);
            this.button2.Text = "Button 2";
            this.toolTip1.SetToolTip(this.button2, "Button2 tip text");

            // Create button3 and set initial values.
            this.button3 = new System.Windows.Forms.Button();
            this.button3.Location = new System.Drawing.Point(8, 56);
            this.button3.Text = "Button 3";
            this.toolTip1.SetToolTip(this.button3, "Button3 tip text");

            // Set up the Form.
            this.Controls.AddRange(new Control[] {
                this.button1, this.button2, this.button3
            });
            this.Text = "owner drawn ToolTip example";
        }

        // Clean up any resources being used.        
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                toolTip1.Dispose();
            }

            base.Dispose(disposing);
        }

        // The main entry point for the application.
        [STAThread]
        static void Main()
        {
            Application.Run(new ToolTipExampleForm());
        }

        // Determines the correct size for the button2 ToolTip.
        private void toolTip1_Popup(object sender, PopupEventArgs e)
        {
            if (e.AssociatedControl == button2)
            {
                using (Font f = new Font("Tahoma", 9))
                {
                    e.ToolTipSize = TextRenderer.MeasureText(
                        toolTip1.GetToolTip(e.AssociatedControl), f);
                }
            }
        }

        // Handles drawing the ToolTip.
        private void toolTip1_Draw(System.Object sender, 
            System.Windows.Forms.DrawToolTipEventArgs e)
        {
            // Draw the ToolTip differently depending on which 
            // control this ToolTip is for.
            // Draw a custom 3D border if the ToolTip is for button1.
            if (e.AssociatedControl == button1)
            {
                // Draw the standard background.
                e.DrawBackground();

                // Draw the custom border to appear 3-dimensional.
                e.Graphics.DrawLines(SystemPens.ControlLightLight, new Point[] {
                    new Point (0, e.Bounds.Height - 1), 
                    new Point (0, 0), 
                    new Point (e.Bounds.Width - 1, 0)
                });
                e.Graphics.DrawLines(SystemPens.ControlDarkDark, new Point[] {
                    new Point (0, e.Bounds.Height - 1), 
                    new Point (e.Bounds.Width - 1, e.Bounds.Height - 1), 
                    new Point (e.Bounds.Width - 1, 0)
                });

                // Specify custom text formatting flags.
                TextFormatFlags sf = TextFormatFlags.VerticalCenter |
                                     TextFormatFlags.HorizontalCenter |
                                     TextFormatFlags.NoFullWidthCharacterBreak;

                // Draw the standard text with customized formatting options.
                e.DrawText(sf);
            }
            // Draw a custom background and text if the ToolTip is for button2.
            else if (e.AssociatedControl == button2)
            {
                // Draw the custom background.
                e.Graphics.FillRectangle(SystemBrushes.ActiveCaption, e.Bounds);

                // Draw the standard border.
                e.DrawBorder();

                // Draw the custom text.
                // The using block will dispose the StringFormat automatically.
                using (StringFormat sf = new StringFormat())
                {
                    sf.Alignment = StringAlignment.Center;
                    sf.LineAlignment = StringAlignment.Center;
                    sf.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.None;
                    sf.FormatFlags = StringFormatFlags.NoWrap;
                    using (Font f = new Font("Tahoma", 9))
                    {
                        e.Graphics.DrawString(e.ToolTipText, f, 
                            SystemBrushes.ActiveCaptionText, e.Bounds, sf);
                    }
                }
            }
            // Draw the ToolTip using default values if the ToolTip is for button3.
            else if (e.AssociatedControl == button3)
            {
                e.DrawBackground();
                e.DrawBorder();
                e.DrawText();
            }
        }
    }
}
Visual C++
#using <System.dll>
#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>

using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace System::Windows::Forms::VisualStyles;

// Form for the ToolTip example.
public ref class ToolTipExampleForm: public System::Windows::Forms::Form
{
private:
   System::Windows::Forms::ToolTip^ toolTip1;
   System::Windows::Forms::Button^ button1;
   System::Windows::Forms::Button^ button2;
   System::Windows::Forms::Button^ button3;

public:
   ToolTipExampleForm()
   {
      // Create the ToolTip and set initial values.
      this->toolTip1 = gcnew System::Windows::Forms::ToolTip;
      this->toolTip1->AutoPopDelay = 5000;
      this->toolTip1->InitialDelay = 500;
      this->toolTip1->OwnerDraw = true;
      this->toolTip1->ReshowDelay = 10;
      this->toolTip1->Draw += gcnew DrawToolTipEventHandler( this, &ToolTipExampleForm::toolTip1_Draw );

      // Create button1 and set initial values.
      this->button1 = gcnew System::Windows::Forms::Button;
      this->button1->Location = System::Drawing::Point( 8, 8 );
      this->button1->Text = "Button 1";
      this->toolTip1->SetToolTip( this->button1, "Button1 tip text" );

      // Create button2 and set initial values.
      this->button2 = gcnew System::Windows::Forms::Button;
      this->button2->Location = System::Drawing::Point( 8, 32 );
      this->button2->Text = "Button 2";
      this->toolTip1->SetToolTip( this->button2, "Button2 tip text" );

      // Create button3 and set initial values.
      this->button3 = gcnew System::Windows::Forms::Button;
      this->button3->Location = System::Drawing::Point( 8, 56 );
      this->button3->Text = "Button 3";
      this->toolTip1->SetToolTip( this->button3, "Button3 tip text" );

      // Set up the Form.
      array<Control^>^temp0 = {this->button1,this->button2,this->button3};
      this->Controls->AddRange( temp0 );
      this->Text = "owner drawn ToolTip example";
   }

protected:

   ~ToolTipExampleForm()
   {
      if ( toolTip1 != nullptr )
      {
         delete toolTip1;
      }
   }

   // Handles drawing the ToolTip.
private:
   void toolTip1_Draw( System::Object^ /*sender*/, System::Windows::Forms::DrawToolTipEventArgs^ e )
   {
      // Draw the ToolTip differently depending on which 
      // control this ToolTip is for.
      // Draw a custom 3D border if the ToolTip is for button1.
      if ( e->AssociatedControl == button1 )
      {
         // Draw the standard background.
         e->DrawBackground();

         // Draw the custom border to appear 3-dimensional.
         array<Point>^ temp1 = {Point(0,e->Bounds.Height - 1),Point(0,0),Point(e->Bounds.Width - 1,0)};
         e->Graphics->DrawLines( SystemPens::ControlLightLight, temp1 );
         array<Point>^ temp2 = {Point(0,e->Bounds.Height - 1),Point(e->Bounds.Width - 1,e->Bounds.Height - 1),Point(e->Bounds.Width - 1,0)};
         e->Graphics->DrawLines( SystemPens::ControlDarkDark, temp2 );

         // Specify custom text formatting flags.
         TextFormatFlags sf = static_cast<TextFormatFlags>(TextFormatFlags::VerticalCenter | TextFormatFlags::HorizontalCenter | TextFormatFlags::NoFullWidthCharacterBreak);

         // Draw the standard text with customized formatting options.
         e->DrawText( sf );
      }
      // Draw a custom background and text if the ToolTip is for button2.
      else

      // Draw a custom background and text if the ToolTip is for button2.
      if ( e->AssociatedControl == button2 )
      {
         // Draw the custom background.
         e->Graphics->FillRectangle( SystemBrushes::ActiveCaption, e->Bounds );

         // Draw the standard border.
         e->DrawBorder();

         // Draw the custom text.
         // The using block will dispose the StringFormat automatically.
         StringFormat^ sf = gcnew StringFormat;
         try
         {
            sf->Alignment = StringAlignment::Center;
            sf->LineAlignment = StringAlignment::Center;
            sf->HotkeyPrefix = System::Drawing::Text::HotkeyPrefix::None;
            sf->FormatFlags = StringFormatFlags::NoWrap;
            System::Drawing::Font^ f = gcnew System::Drawing::Font( "Tahoma",9 );
            try
            {
               e->Graphics->DrawString( e->ToolTipText, f, SystemBrushes::ActiveCaptionText, e->Bounds, sf );
            }
            finally
            {
               if ( f )
                  delete safe_cast<IDisposable^>(f);
            }

         }
         finally
         {
            if ( sf )
               delete safe_cast<IDisposable^>(sf);
         }
      }
      // Draw the ToolTip using default values if the ToolTip is for button3.
      else if ( e->AssociatedControl == button3 )
      {
         e->DrawBackground();
         e->DrawBorder();
         e->DrawText();
      }
   }
};

// The main entry point for the application.

[STAThread]
int main()
{
   Application::Run( gcnew ToolTipExampleForm );
}
J#
package ToolTipExample;

import System.*;
import System.Drawing.*;
import System.Drawing.GDI.*;
import System.Windows.Forms.*;
import System.Windows.Forms.VisualStyles.*;

// Form for the ToolTip example.
public class ToolTipExampleForm extends System.Windows.Forms.Form
{
    private System.Windows.Forms.ToolTip toolTip1;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    private System.Windows.Forms.Button button3;

    public ToolTipExampleForm()
    {
        // Create the ToolTip and set initial values.
        this.toolTip1 = new System.Windows.Forms.ToolTip();
        this.toolTip1.set_AutoPopDelay(5000);
        this.toolTip1.set_InitialDelay(500);
        this.toolTip1.set_OwnerDraw(true);
        this.toolTip1.set_ReshowDelay(10);
        this.toolTip1.add_Draw(new DrawToolTipEventHandler(this.toolTip1_Draw));
        // Create button1 and set initial values.
        this.button1 = new System.Windows.Forms.Button();
        this.button1.set_Location(new System.Drawing.Point(8, 8));
        this.button1.set_Text("Button 1");
        this.toolTip1.SetToolTip(this.button1, "Button1 tip text");
        // Create button2 and set initial values.
        this.button2 = new System.Windows.Forms.Button();
        this.button2.set_Location(new System.Drawing.Point(8, 32));
        this.button2.set_Text("Button 2");
        this.toolTip1.SetToolTip(this.button2, "Button2 tip text");
        // Create button3 and set initial values.
        this.button3 = new System.Windows.Forms.Button();
        this.button3.set_Location(new System.Drawing.Point(8, 56));
        this.button3.set_Text("Button 3");
        this.toolTip1.SetToolTip(this.button3, "Button3 tip text");
        // Set up the Form.
        this.get_Controls().AddRange(new Control[]
            { this.button1, this.button2, this.button3 });
        this.set_Text("owner drawn ToolTip example");
    } //ToolTipExampleForm

    // Clean up any resources being used.        
    protected void Dispose(boolean disposing)
    {
        if (disposing) {
            toolTip1.Dispose();
        }
        super.Dispose(disposing);
    } //Dispose

    // The main entry point for the application.
    /** @attribute STAThread()
     */
    public static void main(String[] args)
    {
        Application.Run(new ToolTipExampleForm());
    } //main

    // Handles drawing the ToolTip.
    private void toolTip1_Draw(Object sender,
        System.Windows.Forms.DrawToolTipEventArgs e)
    {
        // Draw the ToolTip differently depending on which 
        // control this ToolTip is for.
        // Draw a custom 3D border if the ToolTip is for button1.
        if (e.get_AssociatedControl().Equals(button1)) {
            // Draw the standard background.
            e.DrawBackground();
            // Draw the custom border to appear 3-dimensional.
            e.get_Graphics().DrawLines(SystemPens.get_ControlLightLight(),
                new Point[] { new Point(0, e.get_Bounds().get_Height() - 1),
                new Point(0, 0), new Point(e.get_Bounds().get_Width() - 1, 0)});
            e.get_Graphics().DrawLines(SystemPens.get_ControlDarkDark(),
                new Point[] { new Point(0, e.get_Bounds().get_Height() - 1),
                new Point(e.get_Bounds().get_Width() - 1,
                e.get_Bounds().get_Height() - 1),
                new Point(e.get_Bounds().get_Width() - 1, 0) });
            // Specify custom text formatting flags.
            TextFormatFlags sf = TextFormatFlags.VerticalCenter
                | TextFormatFlags.HorizontalCenter
                | TextFormatFlags.NoFullWidthCharacterBreak;
            // Draw the standard text with customized formatting options.
            e.DrawText(sf);
        }
        // Draw a custom background and text if the ToolTip is for button2.
        else {
            if (e.get_AssociatedControl().Equals(button2)) {
                // Draw the custom background.
                e.get_Graphics().FillRectangle(SystemBrushes.get_ActiveCaption(),
                    e.get_Bounds());
                // Draw the standard border.
                e.DrawBorder();

                // Draw the custom text.
                // The using block will dispose the StringFormat automatically.
                StringFormat sf = new StringFormat();
                try {
                    sf.set_Alignment(StringAlignment.Center);
                    sf.set_LineAlignment(StringAlignment.Center);
                    sf.set_HotkeyPrefix(System.Drawing.Text.HotkeyPrefix.None);
                    sf.set_FormatFlags(StringFormatFlags.NoWrap);                    
                    Font f = new Font("Tahoma", 9);
                    try {
                        e.get_Graphics().DrawString(e.get_ToolTipText(), f,
                            SystemBrushes.get_ActiveCaptionText(),
                            RectangleF.op_Implicit(e.get_Bounds()), sf);
                    }
                    finally {
                        f.Dispose();
                    }                    
                }
                finally {
                    sf.Dispose();
                }                
            }
            // Draw the ToolTip using default values if the ToolTip is
            // for button3.
            else {
                if (e.get_AssociatedControl().Equals(button3)) {
                    e.DrawBackground();
                    e.DrawBorder();
                    e.DrawText();
                }
            }
        }        
    } //toolTip1_Draw
} //ToolTipExampleForm

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

.NET Framework および .NET Compact Framework では、各プラットフォームのすべてのバージョンはサポートしていません。サポートされているバージョンについては、「.NET Framework システム要件」を参照してください。

.NET Framework

サポート対象 : 3.5、3.0、2.0
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