RadioButtonRenderer RadioButtonRenderer RadioButtonRenderer RadioButtonRenderer Class

定義

visual スタイルを使用して (または使用せずに) オプション ボタン コントロールをレンダリングするために使用されるメソッドを提供します。Provides methods used to render an option button control (also known as a radio button) with or without visual styles. このクラスは継承できません。This class cannot be inherited.

public ref class RadioButtonRenderer sealed
public sealed class RadioButtonRenderer
type RadioButtonRenderer = class
Public NotInheritable Class RadioButtonRenderer
継承
RadioButtonRendererRadioButtonRendererRadioButtonRendererRadioButtonRenderer

次のコード例は、 DrawRadioButtonメソッドを使用してマウスクリックに応答するオプションボタンを描画するカスタムコントロールを作成する方法を示しています。The following code example demonstrates how to write a custom control that uses the DrawRadioButton method to draw an option button that responds to mouse clicks.

#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
#using <System.dll>

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

namespace RadioButtonRendererSample
{
    public ref class CustomRadioButton : public Control
    {
    private:
        Rectangle textRectangleValue;
    private:
        bool clicked;
    private:
        RadioButtonState state;

    public:
        CustomRadioButton() : Control()
        {
            textRectangleValue = Rectangle();
            state = RadioButtonState::UncheckedNormal;
            this->Location = Point(50, 50);
            this->Size = System::Drawing::Size(100, 20);
            this->Text = "Click here";
            this->Font = SystemFonts::IconTitleFont;
        }

        // Define the text bounds so that the text rectangle
        // does not include the radio button.
    public:
        property Rectangle TextRectangle
        {
            Rectangle get()
            {
                Graphics^ g = this->CreateGraphics();

                textRectangleValue.X = ClientRectangle.X +
                    RadioButtonRenderer::GetGlyphSize(g,
                    RadioButtonState::UncheckedNormal).Width;
                textRectangleValue.Y = ClientRectangle.Y;
                textRectangleValue.Width = ClientRectangle.Width -
                    RadioButtonRenderer::GetGlyphSize(g,
                    RadioButtonState::UncheckedNormal).Width;
                textRectangleValue.Height = ClientRectangle.Height;
             
                delete g;                

                return textRectangleValue;
            }
        }

        // Draw the radio button in the current state.
    protected:
        virtual void OnPaint(PaintEventArgs^ e) override
        {
            __super::OnPaint(e);

            RadioButtonRenderer::DrawRadioButton(e->Graphics,
                ClientRectangle.Location, TextRectangle, this->Text,
                this->Font, clicked, state);
        }

        // Draw the radio button in the checked or unchecked state.
    protected:
        virtual void OnMouseDown(MouseEventArgs^ e) override
        {
            __super::OnMouseDown(e);

            if (!clicked)
            {
                clicked = true;
                this->Text = "Clicked!";
                state = RadioButtonState::CheckedPressed;
                Invalidate();
            }
            else
            {
                clicked = false;
                this->Text = "Click here";
                state = RadioButtonState::UncheckedNormal;
                Invalidate();
            }
        }

        // Draw the radio button in the hot state.
    protected:
        virtual void OnMouseHover(EventArgs^ e) override
        {
            __super::OnMouseHover(e);
            state = clicked ? RadioButtonState::CheckedHot :
                RadioButtonState::UncheckedHot;
            Invalidate();
        }

        // Draw the radio button in the hot state.
    protected:
        virtual void OnMouseUp(MouseEventArgs^ e) override
        {
            __super::OnMouseUp(e);
            this->OnMouseHover(e);
        }

        // Draw the radio button in the normal (i.e. not hot) state
    protected:
        virtual void OnMouseLeave(EventArgs^ e) override
        {
            __super::OnMouseLeave(e);
            state = clicked ? RadioButtonState::CheckedNormal :
                RadioButtonState::UncheckedNormal;
            Invalidate();
        }
    };

    public ref class Form1 : public Form
    {
    public:
        Form1() : Form()
        {
            Controls->Add(gcnew CustomRadioButton());

            if (Application::RenderWithVisualStyles)
            {
                this->Text = "Visual Styles Enabled";
            }
            else
            {
                this->Text = "Visual Styles Disabled";
            }
        }
    };
}

[STAThread]
int main()
{
    // If you do not call EnableVisualStyles below, then
    // RadioButtonRenderer.DrawRadioButton automatically detects
    // this and draws the radio button without visual styles.
    Application::EnableVisualStyles();
    Application::Run(gcnew RadioButtonRendererSample::Form1());
}
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;

namespace RadioButtonRendererSample
{
    class Form1 : Form
    {
        Button button1 = new Button();
        public Form1()
            : base()
        {
            CustomRadioButton RadioButton1 = new CustomRadioButton();
          
            button1.Location = new System.Drawing.Point(175, 231);
            button1.Size = new System.Drawing.Size(105, 23);
            button1.Text = "Toggle Style";
            button1.Click += new System.EventHandler(this.button1_Click);
            Controls.Add(RadioButton1);
            Controls.Add(button1);

            if (Application.RenderWithVisualStyles)
                this.Text = "Visual Styles Enabled";
            else
                this.Text = "Visual Styles Disabled";
        }

        [STAThread]
        static void Main()
        {
            // If you do not call EnableVisualStyles below, then 
            // RadioButtonRenderer.DrawRadioButton automatically detects 
            // this and draws the radio button without visual styles.
            Application.EnableVisualStyles();
            Application.Run(new Form1());
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Application.VisualStyleState =
                Application.VisualStyleState ^
                VisualStyleState.ClientAndNonClientAreasEnabled;

            GroupBoxRenderer.RenderMatchingApplicationState = true;
            if (Application.RenderWithVisualStyles)
                this.Text = "Visual Styles Enabled";
            else
                this.Text = "Visual Styles Disabled";
        }
    }

    public class CustomRadioButton : Control
    {
        private Rectangle textRectangleValue = new Rectangle();
        private bool clicked = false;
        private RadioButtonState state = RadioButtonState.UncheckedNormal;

        public CustomRadioButton()
            : base()
        {
            this.Location = new Point(50, 50);
            this.Size = new Size(100, 20);
            this.Text = "Click here";
            this.Font = SystemFonts.IconTitleFont;
        }

        // Define the text bounds so that the text rectangle 
        // does not include the radio button.
        public Rectangle TextRectangle
        {
            get
            {
                using (Graphics g = this.CreateGraphics())
                {
                    textRectangleValue.X = ClientRectangle.X +
                        RadioButtonRenderer.GetGlyphSize(g,
                        RadioButtonState.UncheckedNormal).Width;
                    textRectangleValue.Y = ClientRectangle.Y;
                    textRectangleValue.Width = ClientRectangle.Width -
                        RadioButtonRenderer.GetGlyphSize(g,
                        RadioButtonState.UncheckedNormal).Width;
                    textRectangleValue.Height = ClientRectangle.Height;
                }

                return textRectangleValue;
            }
        }

        // Draw the radio button in the current state.
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            RadioButtonRenderer.DrawRadioButton(e.Graphics,
                ClientRectangle.Location, TextRectangle, this.Text,
                this.Font, clicked, state);
        }

        // Draw the radio button in the checked or unchecked state.
        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);

            if (!clicked)
            {
                clicked = true;
                this.Text = "Clicked!";
                state = RadioButtonState.CheckedPressed;
                Invalidate();
            }
            else
            {
                clicked = false;
                this.Text = "Click here";
                state = RadioButtonState.UncheckedNormal;
                Invalidate();
            }
        }

        // Draw the radio button in the hot state.
        protected override void OnMouseHover(EventArgs e)
        {
            base.OnMouseHover(e);
            state = clicked ? RadioButtonState.CheckedHot :
                RadioButtonState.UncheckedHot;
            Invalidate();
        }

        // Draw the radio button in the hot state.
        protected override void OnMouseUp(MouseEventArgs e)
        {
            base.OnMouseUp(e);
            this.OnMouseHover(e);
        }

        // Draw the radio button in the unpressed state.
        protected override void OnMouseLeave(EventArgs e)
        {
            base.OnMouseLeave(e);
            state = clicked ? RadioButtonState.CheckedNormal :
                RadioButtonState.UncheckedNormal;
            Invalidate();
        }
    }
}
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles

Namespace RadioButtonRendererSample

    Class Form1
        Inherits Form

        Dim WithEvents button1 As Button

        Public Sub New()
            Dim RadioButton1 As New CustomRadioButton()
            button1 = New Button
            Me.button1.Location = New System.Drawing.Point(185, 231)
            Me.button1.Size = New System.Drawing.Size(105, 23)
            Me.button1.Text = "Toggle Styles"
            Controls.Add(RadioButton1)
            Controls.Add(button1)

            If Application.RenderWithVisualStyles Then
                Me.Text = "Visual Styles Enabled"
            Else
                Me.Text = "Visual Styles Disabled"
            End If
        End Sub

        <STAThread()> _
        Shared Sub Main()
            ' If you do not call EnableVisualStyles below, then 
            ' RadioButtonRenderer.DrawRadioButton automatically detects 
            ' this and draws the radio button without visual styles.
            Application.EnableVisualStyles()
            Application.Run(New Form1())
        End Sub

        ' Match application style and toggle visual styles off
        ' and on for the application.
        Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) _
            Handles button1.Click

            RadioButtonRenderer.RenderMatchingApplicationState = True

            Application.VisualStyleState = _
                Application.VisualStyleState Xor _
                VisualStyleState.ClientAndNonClientAreasEnabled

            If Application.RenderWithVisualStyles Then
                Me.Text = "Visual Styles Enabled"
            Else
                Me.Text = "Visual Styles Disabled"
            End If

        End Sub
    End Class

    Public Class CustomRadioButton
        Inherits Control

        Private textRectangleValue As New Rectangle()
        Private clicked As Boolean = False
        Private state As RadioButtonState = RadioButtonState.UncheckedNormal

        Public Sub New()
            With Me
                .Location = New Point(50, 50)
                .Size = New Size(100, 20)
                .Text = "Click here"
                .Font = SystemFonts.IconTitleFont
            End With
        End Sub 'New

        ' Define the text bounds so that the text rectangle 
        ' does not include the radio button.
        Public ReadOnly Property TextRectangle() As Rectangle
            Get
                Using g As Graphics = Me.CreateGraphics()
                    With textRectangleValue
                        .X = Me.ClientRectangle.X + _
                            RadioButtonRenderer.GetGlyphSize(g, _
                            RadioButtonState.UncheckedNormal).Width
                        .Y = Me.ClientRectangle.Y
                        .Width = Me.ClientRectangle.Width - _
                            RadioButtonRenderer.GetGlyphSize(g, _
                            RadioButtonState.UncheckedNormal).Width
                        .Height = Me.ClientRectangle.Height
                    End With
                End Using
                Return textRectangleValue
            End Get
        End Property

        ' Draw the radio button in the current state.
        Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
            MyBase.OnPaint(e)
            RadioButtonRenderer.DrawRadioButton(e.Graphics, _
                Me.ClientRectangle.Location, TextRectangle, Me.Text, _
                Me.Font, clicked, state)
        End Sub

        ' Draw the radio button in the checked or unchecked state.
        Protected Overrides Sub OnMouseDown(ByVal e As MouseEventArgs)
            MyBase.OnMouseDown(e)

            If Not clicked Then
                clicked = True
                Me.Text = "Clicked!"
                state = RadioButtonState.CheckedPressed
                Invalidate()
            Else
                clicked = False
                Me.Text = "Click here"
                state = RadioButtonState.UncheckedNormal
                Invalidate()
            End If

        End Sub

        ' Draw the radio button in the hot state. 
        Protected Overrides Sub OnMouseHover(ByVal e As EventArgs)
            MyBase.OnMouseHover(e)

            If clicked Then
                state = RadioButtonState.CheckedHot
            Else
                state = RadioButtonState.UncheckedHot
            End If
            Invalidate()
        End Sub

        ' Draw the radio button in the hot state.
        Protected Overrides Sub OnMouseUp(ByVal e As MouseEventArgs)
            MyBase.OnMouseUp(e)
            Me.OnMouseHover(e)
        End Sub

        ' Draw the radio button in the unpressed state.
        Protected Overrides Sub OnMouseLeave(ByVal e As EventArgs)
            MyBase.OnMouseLeave(e)

            If clicked Then
                state = RadioButtonState.CheckedNormal
            Else
                state = RadioButtonState.UncheckedNormal
            End If
            Invalidate()
        End Sub

    End Class
End Namespace

注釈

クラスRadioButtonRendererには、オプションボタンstaticコントロールを表示するために使用できる一連のメソッドが用意されています。The RadioButtonRenderer class provides a set of static methods that can be used to render an option button control. コントロールのレンダリングとは、コントロールのユーザー インターフェイスを描画することを意味します。Rendering a control refers to drawing the user interface of a control. オプションボタンを描画するにはDrawRadioButton 、いずれかのメソッドを使用します。To draw an option button, use one of the DrawRadioButton methods. これらのメソッドは、オプションボタンを使用してテキストやイメージを描画するなど、さまざまなオプションを提供します。These methods provide a variety of options, such as drawing text or an image with the option button.

オペレーティングシステムで visual スタイルが有効になっていて、現在のアプリケーションに visual スタイルDrawRadioButtonが適用されている場合、は現在の visual スタイルを使用してオプションボタンを描画します。If visual styles are enabled in the operating system and visual styles are applied to the current application, DrawRadioButton will draw the option button with the current visual style. それ以外DrawRadioButtonの場合、は、クラシック Windows スタイルを使用してオプションボタンを描画します。Otherwise, DrawRadioButton will draw the option button with the classic Windows style. これは、オペレーティングシステムの現在の visual スタイル設定に自動的に一致する必要があるカスタムコントロールを描画する場合に便利です。This is useful if you are drawing a custom control that should automatically match the current visual style setting of the operating system.

このクラスは、 System.Windows.Forms.VisualStyles.VisualStyleRenderer System.Windows.Forms.VisualStyles.VisualStyleElement.Button.RadioButtonクラスによって公開される要素のいずれかに設定されているの機能をラップします。This class wraps the functionality of a System.Windows.Forms.VisualStyles.VisualStyleRenderer that is set to one of the elements exposed by the System.Windows.Forms.VisualStyles.VisualStyleElement.Button.RadioButton class. 詳細については、「visual スタイルが使用されているコントロールのレンダリング」を参照してください。For more information, see Rendering Controls with Visual Styles.

プロパティ

RenderMatchingApplicationState RenderMatchingApplicationState RenderMatchingApplicationState RenderMatchingApplicationState

レンダラーがアプリケーション状態に応じて描画スタイルを決定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 renderer uses the application state to determine rendering style.

メソッド

DrawParentBackground(Graphics, Rectangle, Control) DrawParentBackground(Graphics, Rectangle, Control) DrawParentBackground(Graphics, Rectangle, Control) DrawParentBackground(Graphics, Rectangle, Control)

指定領域にコントロールの親の背景を描画します。Draws the background of a control's parent in the specified area.

DrawRadioButton(Graphics, Point, RadioButtonState) DrawRadioButton(Graphics, Point, RadioButtonState) DrawRadioButton(Graphics, Point, RadioButtonState) DrawRadioButton(Graphics, Point, RadioButtonState)

指定された状態で、指定された位置にオプション ボタン コントロールを描画します。Draws an option button control (also known as a radio button) in the specified state and location.

DrawRadioButton(Graphics, Point, Rectangle, String, Font, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, Boolean, RadioButtonState)

指定された状態で、指定された位置に、指定されたテキストとオプションのフォーカスを示す四角形を使用して、オプション ボタン コントロールを描画します。Draws an option button control (also known as a radio button) in the specified state and location, with the specified text, and with an optional focus rectangle.

DrawRadioButton(Graphics, Point, Rectangle, String, Font, Image, Rectangle, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, Image, Rectangle, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, Image, Rectangle, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, Image, Rectangle, Boolean, RadioButtonState)

指定された状態で、指定された位置に、指定されたテキスト、イメージ、およびオプションのフォーカスを示す四角形を使用して、オプション ボタン コントロールを描画します。Draws an option button control (also known as a radio button) in the specified state and location, with the specified text and image, and with an optional focus rectangle.

DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Boolean, RadioButtonState)

指定された状態で、指定された位置に、指定されたテキスト、書式設定、およびオプションのフォーカスを示す四角形を使用して、オプション ボタン コントロールを描画します。Draws an option button control (also known as a radio button) in the specified state and location, with the specified text and text formatting, and with an optional focus rectangle.

DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Image, Rectangle, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Image, Rectangle, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Image, Rectangle, Boolean, RadioButtonState) DrawRadioButton(Graphics, Point, Rectangle, String, Font, TextFormatFlags, Image, Rectangle, Boolean, RadioButtonState)

指定された状態で、指定された位置に、指定されたテキスト、書式設定、イメージ、およびオプションのフォーカスを示す四角形を使用して、オプション ボタン コントロールを描画します。Draws an option button control (also known as a radio button) in the specified state and location; with the specified text, text formatting, and image; and with an optional focus rectangle.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

指定したオブジェクトが、現在のオブジェクトと等しいかどうかを判断します。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetGlyphSize(Graphics, RadioButtonState) GetGlyphSize(Graphics, RadioButtonState) GetGlyphSize(Graphics, RadioButtonState) GetGlyphSize(Graphics, RadioButtonState)

オプション ボタンのグリフのサイズをピクセル単位で返します。Returns the size, in pixels, of the option button (also known as a radio button) glyph.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

既定のハッシュ関数として機能します。Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

現在のインスタンスの Type を取得します。Gets the Type of the current instance.

(Inherited from Object)
IsBackgroundPartiallyTransparent(RadioButtonState) IsBackgroundPartiallyTransparent(RadioButtonState) IsBackgroundPartiallyTransparent(RadioButtonState) IsBackgroundPartiallyTransparent(RadioButtonState)

オプション ボタンの背景が半透明かアルファ ブレンドかを示します。Indicates whether the background of the option button (also known as a radio button) has semitransparent or alpha-blended pieces.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

現在の Object の簡易コピーを作成します。Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

現在のオブジェクトを表す文字列を返します。Returns a string that represents the current object.

(Inherited from Object)

適用対象

こちらもご覧ください