VisualStyleRenderer VisualStyleRenderer VisualStyleRenderer VisualStyleRenderer Class

Definition

Stellt Methoden zum Zeichnen und Abrufen von Informationen zu einem VisualStyleElement bereit.Provides methods for drawing and getting information about a VisualStyleElement. Diese Klasse kann nicht vererbt werden.This class cannot be inherited.

public ref class VisualStyleRenderer sealed
public sealed class VisualStyleRenderer
type VisualStyleRenderer = class
Public NotInheritable Class VisualStyleRenderer
Vererbung
VisualStyleRendererVisualStyleRendererVisualStyleRendererVisualStyleRenderer

Beispiele

Im folgenden Codebeispiel wird die VisualStyleRenderer Klasse, um ein benutzerdefiniertes Steuerelement implementieren, die einige der grundlegenden Benutzeroberfläche einschließlich Ziehen der Titelleiste, Ändern der Größe mit den Ziehpunkt, und Schließen eines Fensters simuliert.The following code example uses the VisualStyleRenderer class to implement a custom control that simulates some of the basic UI of a window, including dragging with the title bar, resizing with the sizing handle, and closing. In diesem Beispiel wird mithilfe mehrerer VisualStyleElement standard Teile eines Fenster, einschließlich der Elemente, die von verfügbar gemachten darstellende – Objekte die VisualStyleElement.Window.Caption, VisualStyleElement.Window.CloseButton, und VisualStyleElement.Status.Gripper Klassen.This example uses several VisualStyleElement objects that represent standard parts of a window, including the elements exposed by the VisualStyleElement.Window.Caption, VisualStyleElement.Window.CloseButton, and VisualStyleElement.Status.Gripper classes.

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

using namespace System;
using namespace System::Text;
using namespace System::Drawing;
using namespace System::Drawing::Drawing2D;
using namespace System::Collections::Generic;
using namespace System::Windows::Forms;
using namespace System::Windows::Forms::VisualStyles;

namespace VisualStyleRendererSample
{

    public ref class WindowSimulation : public Control
    {
    private:
        Dictionary<String^, VisualStyleElement^>^ windowElements;
        Dictionary<String^, Rectangle>^ elementRectangles;
        VisualStyleRenderer^ renderer;
        Point closeButtonOffset;
        System::Drawing::Size gripperSize;
        System::Drawing::Size closeButtonSize;
        bool isResizing;
        bool isMoving;
        bool isClosing;
        int captionHeight;
        int frameThickness;
        int statusHeight;
        Point originalClick;
        Point resizeOffset;

    public:
        WindowSimulation() : Control()
        {
            statusHeight = 22;
            windowElements = gcnew Dictionary<String^, VisualStyleElement^>();
            elementRectangles = gcnew Dictionary<String^, Rectangle>();
            this->Location = Point(50, 50);
            this->Size = System::Drawing::Size(350, 300);
            this->BackColor = Color::Azure;
            this->DoubleBuffered = true;
            this->MinimumSize = System::Drawing::Size(300, 200);
            this->Font = SystemFonts::CaptionFont;
            this->Text = "Simulated Window";

            // Insert the VisualStyleElement objects into the Dictionary.
            windowElements->Add("windowCaption",
                VisualStyleElement::Window::Caption::Active);
            windowElements->Add("windowBottom",
                VisualStyleElement::Window::FrameBottom::Active);
            windowElements->Add("windowLeft",
                VisualStyleElement::Window::FrameLeft::Active);
            windowElements->Add("windowRight",
                VisualStyleElement::Window::FrameRight::Active);
            windowElements->Add("windowClose",
                VisualStyleElement::Window::CloseButton::Normal);
            windowElements->Add("statusBar",
                VisualStyleElement::Status::Bar::Normal);
            windowElements->Add("statusGripper",
                VisualStyleElement::Status::Gripper::Normal);

            // Get the sizes and location offsets for the window parts
            // as specified by the visual style, and then use this
            // information to calcualate the rectangles for each part.
            GetPartDetails();
            CalculateRectangles();

            this->MouseDown +=
                gcnew MouseEventHandler(this,
                    &WindowSimulation::ImitationWindow_MouseDown);
            this->MouseUp +=
                gcnew MouseEventHandler(this,
                    &WindowSimulation::ImitationWindow_MouseUp);
            this->MouseMove +=
                gcnew MouseEventHandler(this,
                    &WindowSimulation::ImitationWindow_MouseMove);
        }

        // Get the sizes and offsets for the window parts as specified
        // by the visual style.
    private:
        void GetPartDetails()
        {
            // Do nothing further if visual styles are not enabled.
            if (!Application::RenderWithVisualStyles)
            {
                return;
            }

            Graphics^ g = this->CreateGraphics();

            // Get the size and offset of the close button.
            if (SetRenderer(windowElements["windowClose"]))
            {
                closeButtonSize =
                    renderer->GetPartSize(g, ThemeSizeType::True);
                closeButtonOffset =
                    renderer->GetPoint(PointProperty::Offset);
            }

            // Get the height of the window caption.
            if (SetRenderer(windowElements["windowCaption"]))
            {
                captionHeight = renderer->GetPartSize(g,
                    ThemeSizeType::True).Height;
            }

            // Get the thickness of the left, bottom,
            // and right window frame.
            if (SetRenderer(windowElements["windowLeft"]))
            {
                frameThickness = renderer->GetPartSize(g,
                    ThemeSizeType::True).Width;
            }

            // Get the size of the resizing gripper.
            if (SetRenderer(windowElements["statusGripper"]))
            {
                gripperSize = renderer->GetPartSize(g,
                    ThemeSizeType::True);
            }

        }

        // Use the part metrics to determine the current size
        // of the rectangles for all of the window parts.
    private:
        void CalculateRectangles()
        {
            int heightMinusFrame =
                ClientRectangle.Height - frameThickness;

            // Calculate the window frame rectangles and add them
            // to the Dictionary of rectangles.
            elementRectangles["windowCaption"] = Rectangle(0, 0,
                ClientRectangle.Width, captionHeight);
            elementRectangles["windowBottom"] = Rectangle(0,
                heightMinusFrame, ClientRectangle.Width, frameThickness);
            elementRectangles["windowLeft"] = Rectangle(0, captionHeight,
                frameThickness, heightMinusFrame - captionHeight);
            elementRectangles["windowRight"] = Rectangle(
                ClientRectangle.Width - frameThickness, captionHeight,
                frameThickness, heightMinusFrame - captionHeight);

            // Calculate the window button rectangle and add it
            // to the Dictionary of rectangles.
            elementRectangles["windowClose"] =
                Rectangle(ClientRectangle.Right +
                    closeButtonOffset.X, closeButtonOffset.Y,
                    closeButtonSize.Width, closeButtonSize.Height);

            // Calculate the status bar rectangles and add them
            // to the Dictionary of rectangles.
            elementRectangles["statusBar"] =
                Rectangle(frameThickness,
                    heightMinusFrame - statusHeight,
                    ClientRectangle.Width - (2 * frameThickness),
                    statusHeight);
            elementRectangles["statusGripper"] =
                Rectangle(ClientRectangle.Right -
                gripperSize.Width - frameThickness,
                heightMinusFrame - gripperSize.Height,
                gripperSize.Width, gripperSize.Height);
        }

    protected:
        virtual void OnPaint(PaintEventArgs^ e) override
        {
            __super::OnPaint(e);

            // Ensure that visual styles are supported.
            if (!Application::RenderWithVisualStyles)
            {
                this->Text = "Visual styles are not enabled.";
                TextRenderer::DrawText(e->Graphics, this->Text,
                    this->Font, this->Location, this->ForeColor);
                return;
            }

            // Set the clip region to define the curved corners
            // of the caption.
            SetClipRegion();

            // Draw each part of the window.
            for each(KeyValuePair<String^, VisualStyleElement^>^ entry
                in windowElements)
            {
                if (SetRenderer(entry->Value))
                {
                    renderer->DrawBackground(e->Graphics,
                        elementRectangles[entry->Key]);
                }
            }

            // Draw the caption text.
            TextRenderer::DrawText(e->Graphics, this->Text, this->Font,
                elementRectangles["windowCaption"], Color::White,
                TextFormatFlags::VerticalCenter |
                TextFormatFlags::HorizontalCenter);
        }
private:
        // Initiate dragging, resizing, or closing the imitation window.
        void ImitationWindow_MouseDown(Object^ sender, MouseEventArgs^ e)
        {
            // The user clicked the close button.
            if (elementRectangles["windowClose"].Contains(e->Location))
            {
                windowElements["windowClose"] =
                    VisualStyleElement::Window::CloseButton::Pressed;
                isClosing = true;
            }

            // The user clicked the status grip.
            else if (elementRectangles["statusGripper"].Contains(e->Location))
            {
                isResizing = true;
                this->Cursor = Cursors::SizeNWSE;
                resizeOffset.X = this->Right - this->Left - e->X;
                resizeOffset.Y = this->Bottom - this->Top - e->Y;
            }

            // The user clicked the window caption.
            else if (elementRectangles["windowCaption"].Contains(e->Location))
            {
                isMoving = true;
                originalClick.X = e->X;
                originalClick.Y = e->Y;
            }

            Invalidate();
        }

        // Stop any current resizing or moving actions.
        void ImitationWindow_MouseUp(Object^ sender, MouseEventArgs^ e)
        {
            // Stop moving the location of the window rectangles.
            if (isMoving)
            {
                isMoving = false;
            }

            // Change the cursor back to the default if the user
            // stops resizing.
            else if (isResizing)
            {
                isResizing = false;
            }

            // Close the application if the user clicks the
            // close button.
            else if (elementRectangles["windowClose"].Contains(e->Location) 
                && isClosing)
            {
                Application::Exit();
            }
        }

        // Handle resizing or moving actions.
        void ImitationWindow_MouseMove(Object^ sender,
            MouseEventArgs^ e)
        {
            // The left mouse button is down.
            if ((::MouseButtons::Left & e->Button) == ::MouseButtons::Left)
            {
                // Calculate the new control size if the user is
                // dragging the resizing grip.
                if (isResizing)
                {
                    this->Width = e->X + resizeOffset.X;
                    this->Height = e->Y + resizeOffset.Y;
                    CalculateRectangles();
                }

                // Calculate the new location of the control if the
                // user is dragging the window caption.
                else if (isMoving)
                {
                    int XChange = this->Location.X + (e->X - originalClick.X);
                    int YChange = this->Location.Y + (e->Y - originalClick.Y);
                    this->Location = Point(XChange, YChange);
                }

                // Cancel the closing action if the user clicked
                // and held down on the close button, and has dragged
                // the pointer outside the button.
                else if (!elementRectangles["windowClose"].Contains(
                    e->Location) && isClosing)
                {
                    isClosing = false;
                    windowElements["windowClose"] =
                        VisualStyleElement::Window::CloseButton::Normal;
                }
            }

            // The left mouse button is not down.
            else
            {
                // Paint the close button hot if the cursor is on it.
                Rectangle^ closeRectangle =
                    elementRectangles["windowClose"];
                if (closeRectangle->Contains(e->Location))
                {
                    windowElements["windowClose"] =
                        VisualStyleElement::Window::CloseButton::Hot;
                }
                else
                {
                    windowElements["windowClose"] =
                        VisualStyleElement::Window::CloseButton::Normal;
                }


                // Use a resizing cursor if the cursor is on the
                // status grip.
                Rectangle^ gripRectangle = elementRectangles["statusGripper"];
                if (gripRectangle->Contains(e->Location))
                {
                    this->Cursor = Cursors::SizeNWSE;
                }
                else
                {
                    this->Cursor = Cursors::Default;
                }
            }

            Invalidate();
        }

        // Calculate and set the clipping region for the control
        // so that the corners of the title bar are rounded.
    private:
        void SetClipRegion()
        {
            if (!Application::RenderWithVisualStyles)
            {
                return;
            }

            Graphics^ g = this->CreateGraphics();
            // Get the current region for the window caption.
            if (SetRenderer(windowElements["windowCaption"]))
            {
                System::Drawing::Region^ clipRegion =
                    renderer->GetBackgroundRegion(g,
                    elementRectangles["windowCaption"]);

                // Get the client rectangle, but exclude the region
                // of the window caption.
                int height = (int)clipRegion->GetBounds(g).Height;
                System::Drawing::Rectangle nonCaptionRect = Rectangle(
                    ClientRectangle.X, ClientRectangle.Y + height,
                    ClientRectangle.Width, ClientRectangle.Height - height);

                // Add the rectangle to the caption region, and
                // make this region the form's clipping region.
                clipRegion->Union(nonCaptionRect);
                this->Region = clipRegion;
            }

        }

        // Set the VisualStyleRenderer to a new element.
    private:
        bool SetRenderer(VisualStyleElement^ element)
        {
            if (!VisualStyleRenderer::IsElementDefined(element))
            {
                return false;
            }

            if (renderer == nullptr)
            {
                renderer = gcnew VisualStyleRenderer(element);
            }
            else
            {
                renderer->SetParameters(element);
            }

            return true;
        }
    };

    public ref class Form1 : public Form
    {
    public:
        Form1() : Form()
        {
            this->Size = System::Drawing::Size(800, 600);
            this->Location = Point(20, 20);
            this->BackColor = Color::DarkGray;
            WindowSimulation^ ws = gcnew WindowSimulation();
            Controls->Add(ws);
        }

    };
}

[STAThread]
int main()
{
    Application::EnableVisualStyles();
    Application::Run(gcnew VisualStyleRendererSample::Form1());
}
using System;
using System.Text;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;

namespace VisualStyleRendererSample
{
    class Form1 : Form
    {
        public Form1()
            : base()
        {
            this.Size = new Size(800, 600);
            this.Location = new Point(20, 20);
            this.BackColor = Color.DarkGray;
            WindowSimulation Window1 = new WindowSimulation();
            Controls.Add(Window1);
        }

        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new Form1());
        }
    }

    public class WindowSimulation : Control
    {
        private Dictionary<string, VisualStyleElement> windowElements =
            new Dictionary<string, VisualStyleElement>();
        private Dictionary<string, Rectangle> elementRectangles =
            new Dictionary<string, Rectangle>();
        private VisualStyleRenderer renderer = null;

        private Point closeButtonOffset;
        private Size gripperSize;
        private Size closeButtonSize;
        private bool isResizing = false;
        private bool isMoving = false;
        private bool isClosing = false;
        private int captionHeight;
        private int frameThickness;
        private int statusHeight = 22;
        private Point originalClick = new Point();
        private Point resizeOffset = new Point();

        public WindowSimulation()
            : base()
        {
            this.Location = new Point(50, 50);
            this.Size = new Size(350, 300);
            this.BackColor = Color.Azure;
            this.DoubleBuffered = true;
            this.MinimumSize = new Size(300, 200);
            this.Font = SystemFonts.CaptionFont;
            this.Text = "Simulated Window";

            // Insert the VisualStyleElement objects into the Dictionary.
            windowElements.Add("windowCaption",
                VisualStyleElement.Window.Caption.Active);
            windowElements.Add("windowBottom",
                VisualStyleElement.Window.FrameBottom.Active);
            windowElements.Add("windowLeft",
                VisualStyleElement.Window.FrameLeft.Active);
            windowElements.Add("windowRight",
                VisualStyleElement.Window.FrameRight.Active);
            windowElements.Add("windowClose",
                VisualStyleElement.Window.CloseButton.Normal);
            windowElements.Add("statusBar",
                VisualStyleElement.Status.Bar.Normal);
            windowElements.Add("statusGripper",
                VisualStyleElement.Status.Gripper.Normal);

            // Get the sizes and location offsets for the window parts  
            // as specified by the visual style, and then use this 
            // information to calcualate the rectangles for each part.
            GetPartDetails();
            CalculateRectangles();

            this.MouseDown +=
                new MouseEventHandler(ImitationWindow_MouseDown);
            this.MouseUp +=
                new MouseEventHandler(ImitationWindow_MouseUp);
            this.MouseMove +=
                new MouseEventHandler(ImitationWindow_MouseMove);
        }

        // Get the sizes and offsets for the window parts as specified  
        // by the visual style.
        private void GetPartDetails()
        {
            // Do nothing further if visual styles are not enabled.
            if (!Application.RenderWithVisualStyles)
            {
                return;
            }

            using (Graphics g = this.CreateGraphics())
            {
                // Get the size and offset of the close button.
                if (SetRenderer(windowElements["windowClose"]))
                {
                    closeButtonSize =
                        renderer.GetPartSize(g, ThemeSizeType.True);
                    closeButtonOffset =
                        renderer.GetPoint(PointProperty.Offset);
                }

                // Get the height of the window caption.
                if (SetRenderer(windowElements["windowCaption"]))
                {
                    captionHeight = renderer.GetPartSize(g,
                        ThemeSizeType.True).Height;
                }

                // Get the thickness of the left, bottom, 
                // and right window frame.
                if (SetRenderer(windowElements["windowLeft"]))
                {
                    frameThickness = renderer.GetPartSize(g,
                        ThemeSizeType.True).Width;
                }

                // Get the size of the resizing gripper.
                if (SetRenderer(windowElements["statusGripper"]))
                {
                    gripperSize = renderer.GetPartSize(g,
                        ThemeSizeType.True);
                }
            }
        }

        // Use the part metrics to determine the current size 
        // of the rectangles for all of the window parts.
        private void CalculateRectangles()
        {
            int heightMinusFrame =
                ClientRectangle.Height - frameThickness;

            // Calculate the window frame rectangles and add them
            // to the Dictionary of rectangles.
            elementRectangles["windowCaption"] =
                new Rectangle(0, 0,
                ClientRectangle.Width, captionHeight);
            elementRectangles["windowBottom"] =
                new Rectangle(0, heightMinusFrame,
                ClientRectangle.Width, frameThickness);
            elementRectangles["windowLeft"] =
                new Rectangle(0, captionHeight, frameThickness,
                heightMinusFrame - captionHeight);
            elementRectangles["windowRight"] =
                new Rectangle(ClientRectangle.Width - frameThickness,
                captionHeight, frameThickness,
                heightMinusFrame - captionHeight);

            // Calculate the window button rectangle and add it
            // to the Dictionary of rectangles.
            elementRectangles["windowClose"] =
                new Rectangle(ClientRectangle.Right +
                closeButtonOffset.X, closeButtonOffset.Y,
                closeButtonSize.Width, closeButtonSize.Height);

            // Calculate the status bar rectangles and add them
            // to the Dictionary of rectangles.
            elementRectangles["statusBar"] =
                new Rectangle(frameThickness,
                heightMinusFrame - statusHeight,
                ClientRectangle.Width - (2 * frameThickness),
                statusHeight);
            elementRectangles["statusGripper"] =
                new Rectangle(ClientRectangle.Right -
                gripperSize.Width - frameThickness,
                heightMinusFrame - gripperSize.Height,
                gripperSize.Width, gripperSize.Height);
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            // Ensure that visual styles are supported.
            if (!Application.RenderWithVisualStyles)
            {
                this.Text = "Visual styles are not enabled.";
                TextRenderer.DrawText(e.Graphics, this.Text,
                    this.Font, this.Location, this.ForeColor);
                return;
            }

            // Set the clip region to define the curved corners 
            // of the caption.
            SetClipRegion();

            // Draw each part of the window.
            foreach (KeyValuePair<string, VisualStyleElement> entry
                in windowElements)
            {
                if (SetRenderer(entry.Value))
                {
                    renderer.DrawBackground(e.Graphics,
                        elementRectangles[entry.Key]);
                }
            }

            // Draw the caption text.
            TextRenderer.DrawText(e.Graphics, this.Text, this.Font,
                elementRectangles["windowCaption"], Color.White,
                TextFormatFlags.VerticalCenter |
                TextFormatFlags.HorizontalCenter);
        }

        // Initiate dragging, resizing, or closing the imitation window.
        void ImitationWindow_MouseDown(object sender, MouseEventArgs e)
        {
            // The user clicked the close button.
            if (elementRectangles["windowClose"].Contains(e.Location))
            {
                windowElements["windowClose"] =
                    VisualStyleElement.Window.CloseButton.Pressed;
                isClosing = true;
            }

            // The user clicked the status grip.
            else if (elementRectangles["statusGripper"].
                Contains(e.Location))
            {
                isResizing = true;
                this.Cursor = Cursors.SizeNWSE;
                resizeOffset.X = this.Right - this.Left - e.X;
                resizeOffset.Y = this.Bottom - this.Top - e.Y;
            }

            // The user clicked the window caption.
            else if (elementRectangles["windowCaption"].
                Contains(e.Location))
            {
                isMoving = true;
                originalClick.X = e.X;
                originalClick.Y = e.Y;
            }

            Invalidate();
        }

        // Stop any current resizing or moving actions.
        void ImitationWindow_MouseUp(object sender, MouseEventArgs e)
        {
            // Stop moving the location of the window rectangles.
            if (isMoving)
            {
                isMoving = false;
            }

            // Change the cursor back to the default if the user 
            // stops resizing.
            else if (isResizing)
            {
                isResizing = false;
            }

            // Close the application if the user clicks the 
            // close button.
            else if (elementRectangles["windowClose"].
                Contains(e.Location) && isClosing)
            {
                Application.Exit();
            }
        }

        // Handle resizing or moving actions.
        void ImitationWindow_MouseMove(object sender,
            MouseEventArgs e)
        {
            // The left mouse button is down.
            if ((MouseButtons.Left & e.Button) == MouseButtons.Left)
            {
                // Calculate the new control size if the user is 
                // dragging the resizing grip.
                if (isResizing)
                {
                    this.Width = e.X + resizeOffset.X;
                    this.Height = e.Y + resizeOffset.Y;
                    CalculateRectangles();
                }

                // Calculate the new location of the control if the  
                // user is dragging the window caption.
                else if (isMoving)
                {
                    int XChange = this.Location.X +
                        (e.X - originalClick.X);
                    int YChange = this.Location.Y +
                        (e.Y - originalClick.Y);
                    this.Location = new Point(XChange, YChange);
                }

                // Cancel the closing action if the user clicked  
                // and held down on the close button, and has dragged   
                // the pointer outside the button.
                else if (!elementRectangles["windowClose"].
                    Contains(e.Location) && isClosing)
                {
                    isClosing = false;
                    windowElements["windowClose"] =
                        VisualStyleElement.Window.CloseButton.Normal;
                }
            }

            // The left mouse button is not down.
            else
            {
                // Paint the close button hot if the cursor is on it.
                Rectangle closeRectangle =
                    elementRectangles["windowClose"];
                windowElements["windowClose"] =
                    closeRectangle.Contains(e.Location) ?
                    VisualStyleElement.Window.CloseButton.Hot :
                    VisualStyleElement.Window.CloseButton.Normal;

                // Use a resizing cursor if the cursor is on the 
                // status grip.
                Rectangle gripRectangle =
                    elementRectangles["statusGripper"];
                this.Cursor = gripRectangle.Contains(e.Location) ?
                    Cursors.SizeNWSE : Cursors.Default;
            }

            Invalidate();
        }

        // Calculate and set the clipping region for the control  
        // so that the corners of the title bar are rounded.
        private void SetClipRegion()
        {
            if (!Application.RenderWithVisualStyles)
            {
                return;
            }

            using (Graphics g = this.CreateGraphics())
            {
                // Get the current region for the window caption.
                if (SetRenderer(windowElements["windowCaption"]))
                {
                    Region clipRegion = renderer.GetBackgroundRegion(
                        g, elementRectangles["windowCaption"]);

                    // Get the client rectangle, but exclude the region 
                    // of the window caption.
                    int height = (int)clipRegion.GetBounds(g).Height;
                    Rectangle nonCaptionRect = new Rectangle(
                        ClientRectangle.X,
                        ClientRectangle.Y + height,
                        ClientRectangle.Width,
                        ClientRectangle.Height - height);

                    // Add the rectangle to the caption region, and  
                    // make this region the form's clipping region.
                    clipRegion.Union(nonCaptionRect);
                    this.Region = clipRegion;
                }
            }
        }

        // Set the VisualStyleRenderer to a new element.
        private bool SetRenderer(VisualStyleElement element)
        {
            if (!VisualStyleRenderer.IsElementDefined(element))
            {
                return false;
            }

            if (renderer == null)
            {
                renderer = new VisualStyleRenderer(element);
            }
            else
            {
                renderer.SetParameters(element);
            }

            return true;
        }
    }
}
Imports System
Imports System.Text
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Collections.Generic
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles

Namespace VisualStyleRendererSample

    Class Form1
        Inherits Form

        Public Sub New()
            With Me
                .Size = New Size(800, 600)
                .Location = New Point(20, 20)
                .BackColor = Color.DarkGray
            End With
            Dim Window1 As New ImitationWindow()
            Controls.Add(Window1)
        End Sub

        <STAThread()> _
        Shared Sub Main()
            Application.EnableVisualStyles()
            Application.Run(New Form1())
        End Sub
    End Class

    Public Class ImitationWindow
        Inherits Control

        Private windowElements As _
            New Dictionary(Of String, VisualStyleElement)
        Private elementRectangles As _
            New Dictionary(Of String, Rectangle)
        Private renderer As VisualStyleRenderer = Nothing
        Private closeButtonOffset As Point
        Private gripperSize As Size
        Private closeButtonSize As Size
        Private isResizing As Boolean = False
        Private isMoving As Boolean = False
        Private isClosing As Boolean = False
        Private captionHeight As Integer
        Private frameThickness As Integer
        Private statusHeight As Integer = 22
        Private originalClick As New Point()
        Private resizeOffset As New Point()

        Public Sub New()
            With Me
                .Location = New Point(50, 50)
                .Size = New Size(350, 300)
                .BackColor = Color.Azure
                .DoubleBuffered = True
                .MinimumSize = New Size(300, 200)
                .Font = SystemFonts.CaptionFont
                .Text = "Imitation Window"
            End With

            ' Create a collection of VisualStyleElement objects.
            With windowElements
                .Add("windowCaption", _
                    VisualStyleElement.Window.Caption.Active)
                .Add("windowBottom", _
                    VisualStyleElement.Window.FrameBottom.Active)
                .Add("windowLeft", _
                    VisualStyleElement.Window.FrameLeft.Active)
                .Add("windowRight", _
                    VisualStyleElement.Window.FrameRight.Active)
                .Add("windowClose", _
                    VisualStyleElement.Window.CloseButton.Normal)
                .Add("statusBar", _
                    VisualStyleElement.Status.Bar.Normal)
                .Add("statusGripper", _
                    VisualStyleElement.Status.Gripper.Normal)
            End With

            ' Get the sizes and location offsets for the window parts  
            ' as specified by the visual style, and then use this   
            ' information to calcualate the rectangles for each part.
            GetPartDetails()
            CalculateRectangles()
        End Sub

        ' Get the sizes and offsets for the window parts as specified 
        ' by the visual style.
        Private Sub GetPartDetails()
            ' Do nothing further if visual styles are not enabled.
            If Not Application.RenderWithVisualStyles Then
                Return
            End If

            Using g As Graphics = Me.CreateGraphics()
                ' Get the size and offset of the close button.
                If SetRenderer(windowElements("windowClose")) Then
                    closeButtonSize = _
                        renderer.GetPartSize(g, ThemeSizeType.True)
                    closeButtonOffset = _
                        renderer.GetPoint(PointProperty.Offset)
                End If

                ' Get the height of the window caption.
                If SetRenderer(windowElements("windowCaption")) Then
                    captionHeight = renderer.GetPartSize(g, _
                        ThemeSizeType.True).Height
                End If

                ' Get the thickness of the left, bottom, and right 
                ' window frame.
                If SetRenderer(windowElements("windowLeft")) Then
                    frameThickness = renderer.GetPartSize(g, _
                        ThemeSizeType.True).Width
                End If

                ' Get the size of the resizing gripper.
                If SetRenderer(windowElements("statusGripper")) Then
                    gripperSize = renderer.GetPartSize(g, _
                        ThemeSizeType.True)
                End If
            End Using
        End Sub

        ' Use the part metrics to determine the current size of the 
        ' rectangles for all of the window parts.
        Private Sub CalculateRectangles()

            Dim heightMinusFrame As Integer = _
                ClientRectangle.Height - frameThickness

            ' Calculate the window frame rectangles and add them
            ' to the Dictionary of rectangles.
            elementRectangles("windowCaption") = _
                New Rectangle(0, 0, ClientRectangle.Width, _
                captionHeight)
            elementRectangles("windowBottom") = _
                New Rectangle(0, heightMinusFrame, _
                ClientRectangle.Width, frameThickness)
            elementRectangles("windowLeft") = _
                New Rectangle(0, captionHeight, frameThickness, _
                heightMinusFrame - captionHeight)
            elementRectangles("windowRight") = _
                New Rectangle(ClientRectangle.Width - frameThickness, _
                captionHeight, frameThickness, _
                heightMinusFrame - captionHeight)

            ' Calculate the window button rectangle and add it
            ' to the Dictionary of rectangles.
            elementRectangles("windowClose") = _
                New Rectangle(ClientRectangle.Right + _
                closeButtonOffset.X, closeButtonOffset.Y, _
                closeButtonSize.Width, closeButtonSize.Height)

            ' Calculate the status bar rectangles and add them
            ' to the Dictionary of rectangles.
            elementRectangles("statusBar") = _
                New Rectangle(frameThickness, _
                heightMinusFrame - statusHeight, _
                ClientRectangle.Width - 2 * frameThickness, _
                statusHeight)
            elementRectangles("statusGripper") = _
                New Rectangle(ClientRectangle.Right - _
                gripperSize.Width - frameThickness, _
                heightMinusFrame - gripperSize.Height, _
                gripperSize.Width, gripperSize.Height)
        End Sub

        Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
            MyBase.OnPaint(e)

            ' Ensure that visual styles are supported.
            If Not Application.RenderWithVisualStyles Then
                Me.Text = "Visual styles are not enabled."
                TextRenderer.DrawText(e.Graphics, Me.Text, Me.Font, _
                    Me.Location, Me.ForeColor)
                Return
            End If

            ' Set the clip region to define the curved corners of 
            ' the caption.
            SetClipRegion()

            ' Draw each part of the window.
            Dim entry As KeyValuePair(Of String, VisualStyleElement)
            For Each entry In windowElements
                If SetRenderer(entry.Value) Then
                    renderer.DrawBackground(e.Graphics, _
                        elementRectangles(entry.Key))
                End If
            Next entry

            ' Draw the caption text.
            TextRenderer.DrawText(e.Graphics, Me.Text, Me.Font, _
                elementRectangles("windowCaption"), Color.White, _
                TextFormatFlags.VerticalCenter Or _
                TextFormatFlags.HorizontalCenter)
        End Sub

        ' Initiate dragging, resizing, or closing the imitation window.
        Private Sub ImitationWindow_MouseDown(ByVal sender As Object, _
            ByVal e As MouseEventArgs) Handles Me.MouseDown

            ' The user clicked the close button.
            If elementRectangles("windowClose"). _
                Contains(e.Location) Then

                windowElements("windowClose") = _
                    VisualStyleElement.Window.CloseButton.Pressed
                isClosing = True

            ' The user clicked the status grip.
            ElseIf elementRectangles("statusGripper"). _
                Contains(e.Location) Then

                isResizing = True
                Me.Cursor = Cursors.SizeNWSE
                resizeOffset.X = Me.Right - Me.Left - e.X
                resizeOffset.Y = Me.Bottom - Me.Top - e.Y

            ' The user clicked the window caption.
            ElseIf elementRectangles("windowCaption"). _
                Contains(e.Location) Then

                isMoving = True
                originalClick.X = e.X
                originalClick.Y = e.Y
            End If
            Invalidate()
        End Sub

        ' Stop any current resizing or moving actions.
        Private Sub ImitationWindow_MouseUp(ByVal sender As Object, _
            ByVal e As MouseEventArgs) Handles Me.MouseUp

            ' Stop moving the location of the window rectangles.
            If isMoving Then
                isMoving = False

            ' Change the cursor back to the default if the 
            ' user stops resizing.
            ElseIf isResizing Then
                isResizing = False

            ' Close the application if the user clicks the 
            ' close button.
            ElseIf elementRectangles("windowClose"). _
                Contains(e.Location) And isClosing Then
                Application.Exit()
            End If
        End Sub

        ' Handle resizing or moving actions.
        Private Sub ImitationWindow_MouseMove(ByVal sender As Object, _
            ByVal e As MouseEventArgs) Handles Me.MouseMove

            ' The left mouse button is down.
            If (MouseButtons.Left And e.Button) = _
                MouseButtons.Left Then

                ' Calculate the new control size if the user is  
                ' dragging the resizing grip.
                If isResizing Then
                    Me.Width = e.X + resizeOffset.X
                    Me.Height = e.Y + resizeOffset.Y
                    CalculateRectangles()

                ' Calculate the new location of the control if   
                ' the user is dragging the window caption.
                ElseIf isMoving Then
                    Dim XChange As Integer = Me.Location.X + _
                        (e.X - originalClick.X)
                    Dim YChange As Integer = Me.Location.Y + _
                        (e.Y - originalClick.Y)
                    Me.Location = New Point(XChange, YChange)

                ' Cancel the closing action if the user clicked and  
                ' held down on the close button, and has dragged the   
                ' pointer outside the button.
                ElseIf Not elementRectangles("windowClose"). _
                    Contains(e.Location) And isClosing Then

                    isClosing = False
                    windowElements("windowClose") = _
                        VisualStyleElement.Window.CloseButton.Normal
                End If

            ' The left mouse button is not down.
            Else
                ' Paint the close button hot if the cursor is on it.
                If elementRectangles("windowClose"). _
                    Contains(e.Location) Then
                    windowElements("windowClose") = _
                        VisualStyleElement.Window.CloseButton.Hot
                Else
                    windowElements("windowClose") = _
                        VisualStyleElement.Window.CloseButton.Normal
                End If

                ' Use a resizing cursor if the cursor is on the 
                ' status grip.
                If elementRectangles("statusGripper"). _
                    Contains(e.Location) Then
                    Me.Cursor = Cursors.SizeNWSE
                Else
                    Me.Cursor = Cursors.Default
                End If
            End If
            Invalidate()
        End Sub

        ' Calculate and set the clipping region for the control  
        ' so that the corners of the title bar are rounded.
        Private Sub SetClipRegion()
            If Not Application.RenderWithVisualStyles Then
                Return
            End If

            Using g As Graphics = Me.CreateGraphics()
                ' Get the current region for the window caption.
                If SetRenderer(windowElements("windowCaption")) Then
                    Dim clipRegion As Region = _
                        renderer.GetBackgroundRegion(g, _
                        elementRectangles("windowCaption"))

                    ' Get the client rectangle, but exclude the   
                    ' region of the window caption.
                    Dim height As Integer = _
                        CInt(clipRegion.GetBounds(g).Height)
                    Dim nonCaptionRect As _
                        New Rectangle(ClientRectangle.X, _
                        ClientRectangle.Y + height, _
                        ClientRectangle.Width, _
                        ClientRectangle.Height - height)

                    ' Add the rectangle to the caption region, and  
                    ' make this region the form's clipping region.
                    clipRegion.Union(nonCaptionRect)
                    Me.Region = clipRegion
                End If
            End Using
        End Sub

        ' Set the VisualStyleRenderer to a new element.
        Private Function SetRenderer(ByVal element As _
            VisualStyleElement) As Boolean

            If Not VisualStyleRenderer.IsElementDefined(element) Then
                Return False
            End If

            If renderer Is Nothing Then
                renderer = New VisualStyleRenderer(element)
            Else
                renderer.SetParameters(element)
            End If

            Return True
        End Function

    End Class
End Namespace

Hinweise

Die System.Windows.Forms.VisualStyles Namespace weist VisualStyleElement Objekte, die alle die Steuerelemente und die Benutzer darstellen, Benutzeroberflächenelemente (UI), die von visuellen Stilen unterstützt werden.The System.Windows.Forms.VisualStyles namespace exposes VisualStyleElement objects that represent all of the controls and user interface (UI) elements that are supported by visual styles. Zum Zeichnen oder Abrufen von Informationen über ein bestimmtes Element, müssen Sie festlegen, eine VisualStyleRenderer auf das Element, das Sie interessiert sind.To draw or get information about a particular element, you must set a VisualStyleRenderer to the element you are interested in. Ein VisualStyleRenderer wird automatisch festgelegt, der einem angegebenen VisualStyleElement in die VisualStyleRenderer Konstruktor, aber Sie können auch festlegen, eine vorhandene VisualStyleRenderer auf ein anderes Element durch Aufrufen der SetParameters Methode.A VisualStyleRenderer is automatically set to a specified VisualStyleElement in the VisualStyleRenderer constructor, but you can also set an existing VisualStyleRenderer to a different element by calling the SetParameters method.

Um ein Element zu zeichnen, verwenden die DrawBackground Methode.To draw an element, use the DrawBackground method. Die VisualStyleRenderer Klasse enthält auch Methoden, wie z. B. GetColor und GetEnumValue, die Angaben dazu, wie ein Element vom aktuellen visuellen Stil definiert wird.The VisualStyleRenderer class also includes methods, such as GetColor and GetEnumValue, that provide information about how an element is defined by the current visual style.

Die VisualStyleRenderer Konstruktor und viele der VisualStyleRenderer Methoden werden Ausnahmen auslösen, wenn visuelle Stile im Betriebssystem aktiviert sind, und visuelle Stile werden auf den Clientbereich von Anwendungsfenstern angewendet.The VisualStyleRenderer constructor and many of the VisualStyleRenderer methods throw exceptions unless visual styles are enabled in the operating system and visual styles are applied to the client area of application windows. Um für diese Bedingungen zu überprüfen, verwenden die static IsSupported Eigenschaft.To check for these conditions, use the staticIsSupported property.

Die VisualStyleRenderer Klasse umschließt die Funktionalität der visuelle Stile (UxTheme) API aus dem Windows-Shell-Bereich der Windows-Plattform-SDK.The VisualStyleRenderer class wraps the functionality of the visual styles (UxTheme) API from the Windows Shell portion of the Windows Platform SDK.

Konstruktoren

VisualStyleRenderer(String, Int32, Int32) VisualStyleRenderer(String, Int32, Int32) VisualStyleRenderer(String, Int32, Int32) VisualStyleRenderer(String, Int32, Int32)

Initialisiert mit den angegebenen Klassen-, Teil- und Zustandswerten eine neue Instanz der VisualStyleRenderer-Klasse.Initializes a new instance of the VisualStyleRenderer class using the given class, part, and state values.

VisualStyleRenderer(VisualStyleElement) VisualStyleRenderer(VisualStyleElement) VisualStyleRenderer(VisualStyleElement) VisualStyleRenderer(VisualStyleElement)

Initialisiert eine neue Instanz der VisualStyleRenderer-Klasse mit dem angegebenen VisualStyleElement.Initializes a new instance of the VisualStyleRenderer class using the given VisualStyleElement.

Eigenschaften

Class Class Class Class

Ruft den Klassennamen des aktuellen visuellen Stilelements ab.Gets the class name of the current visual style element.

Handle Handle Handle Handle

Ruft einen eindeutigen Bezeichner für die aktuelle Klasse von visuellen Stilelementen ab.Gets a unique identifier for the current class of visual style elements.

IsSupported IsSupported IsSupported IsSupported

Ruft einen Wert ab, der angibt, ob das Betriebssystem visuelle Stile verwendet, um Steuerelemente zu zeichnen.Gets a value specifying whether the operating system is using visual styles to draw controls.

LastHResult LastHResult LastHResult LastHResult

Ruft den letzten Fehlercode ab, der von den API-Methoden für systemeigene visuelle Stile (UxTheme) zurückgegeben wird. Diese Methoden werden von der VisualStyleRenderer-Klasse gekapselt.Gets the last error code returned by the native visual styles (UxTheme) API methods encapsulated by the VisualStyleRenderer class.

Part Part Part Part

Ruft den Teil des aktuellen visuellen Stilelements ab.Gets the part of the current visual style element.

State State State State

Ruft den Zustand des aktuellen visuellen Stilelements ab.Gets the state of the current visual style element.

Methoden

DrawBackground(IDeviceContext, Rectangle) DrawBackground(IDeviceContext, Rectangle) DrawBackground(IDeviceContext, Rectangle) DrawBackground(IDeviceContext, Rectangle)

Zeichnet das Hintergrundbild des aktuellen visuellen Stilelements innerhalb des angegebenen umschließenden Rechtecks.Draws the background image of the current visual style element within the specified bounding rectangle.

DrawBackground(IDeviceContext, Rectangle, Rectangle) DrawBackground(IDeviceContext, Rectangle, Rectangle) DrawBackground(IDeviceContext, Rectangle, Rectangle) DrawBackground(IDeviceContext, Rectangle, Rectangle)

Zeichnet das Hintergrundbild des aktuellen visuellen Stilelements innerhalb des angegebenen umschließenden Rechtecks und eingegrenzt auf das Auswahlrechteck.Draws the background image of the current visual style element within the specified bounding rectangle and clipped to the specified clipping rectangle.

DrawEdge(IDeviceContext, Rectangle, Edges, EdgeStyle, EdgeEffects) DrawEdge(IDeviceContext, Rectangle, Edges, EdgeStyle, EdgeEffects) DrawEdge(IDeviceContext, Rectangle, Edges, EdgeStyle, EdgeEffects) DrawEdge(IDeviceContext, Rectangle, Edges, EdgeStyle, EdgeEffects)

Zeichnet einen oder mehrere Ränder des angegebenen umschließenden Rechtecks.Draws one or more edges of the specified bounding rectangle.

DrawImage(Graphics, Rectangle, Image) DrawImage(Graphics, Rectangle, Image) DrawImage(Graphics, Rectangle, Image) DrawImage(Graphics, Rectangle, Image)

Zeichnet das angegebene Bild innerhalb der angegebenen Begrenzungen.Draws the specified image within the specified bounds.

DrawImage(Graphics, Rectangle, ImageList, Int32) DrawImage(Graphics, Rectangle, ImageList, Int32) DrawImage(Graphics, Rectangle, ImageList, Int32) DrawImage(Graphics, Rectangle, ImageList, Int32)

Zeichnet das Bild aus der angegebenen ImageList innerhalb der angegebenen Begrenzungen.Draws the image from the specified ImageList within the specified bounds.

DrawParentBackground(IDeviceContext, Rectangle, Control) DrawParentBackground(IDeviceContext, Rectangle, Control) DrawParentBackground(IDeviceContext, Rectangle, Control) DrawParentBackground(IDeviceContext, Rectangle, Control)

Zeichnet den Hintergrund des übergeordneten Elements eines Steuerelements im angegebenen Bereich.Draws the background of a control's parent in the specified area.

DrawText(IDeviceContext, Rectangle, String) DrawText(IDeviceContext, Rectangle, String) DrawText(IDeviceContext, Rectangle, String) DrawText(IDeviceContext, Rectangle, String)

Zeichnet Text unter Verwendung der Standardformatierung in den angegebenen Grenzen.Draws text in the specified bounds using default formatting.

DrawText(IDeviceContext, Rectangle, String, Boolean) DrawText(IDeviceContext, Rectangle, String, Boolean) DrawText(IDeviceContext, Rectangle, String, Boolean) DrawText(IDeviceContext, Rectangle, String, Boolean)

Zeichnet Text innerhalb der angegebenen Begrenzungen mit der Option, deaktivierten Text anzuzeigen.Draws text in the specified bounds with the option of displaying disabled text.

DrawText(IDeviceContext, Rectangle, String, Boolean, TextFormatFlags) DrawText(IDeviceContext, Rectangle, String, Boolean, TextFormatFlags) DrawText(IDeviceContext, Rectangle, String, Boolean, TextFormatFlags) DrawText(IDeviceContext, Rectangle, String, Boolean, TextFormatFlags)

Zeichnet Text im angegebenen umschließenden Rechteck mit der Option, deaktivierten Text anzuzeigen und eine andere Textformatierung anzuwenden.Draws text in the specified bounding rectangle with the option of displaying disabled text and applying other text formatting.

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

Bestimmt, ob das angegebene Objekt mit dem aktuellen Objekt identisch ist.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBackgroundContentRectangle(IDeviceContext, Rectangle) GetBackgroundContentRectangle(IDeviceContext, Rectangle) GetBackgroundContentRectangle(IDeviceContext, Rectangle) GetBackgroundContentRectangle(IDeviceContext, Rectangle)

Gibt den Inhaltsbereich für den Hintergrund des aktuellen visuellen Stilelements zurück.Returns the content area for the background of the current visual style element.

GetBackgroundExtent(IDeviceContext, Rectangle) GetBackgroundExtent(IDeviceContext, Rectangle) GetBackgroundExtent(IDeviceContext, Rectangle) GetBackgroundExtent(IDeviceContext, Rectangle)

Gibt den gesamten Hintergrundbereich für das aktuelle visuelle Stilelement zurück.Returns the entire background area for the current visual style element.

GetBackgroundRegion(IDeviceContext, Rectangle) GetBackgroundRegion(IDeviceContext, Rectangle) GetBackgroundRegion(IDeviceContext, Rectangle) GetBackgroundRegion(IDeviceContext, Rectangle)

Gibt den Bereich für den Hintergrund des aktuellen visuellen Stilelements zurück.Returns the region for the background of the current visual style element.

GetBoolean(BooleanProperty) GetBoolean(BooleanProperty) GetBoolean(BooleanProperty) GetBoolean(BooleanProperty)

Gibt den Wert der angegebenen booleschen Eigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified Boolean property for the current visual style element.

GetColor(ColorProperty) GetColor(ColorProperty) GetColor(ColorProperty) GetColor(ColorProperty)

Gibt den Wert der angegebenen Farbeigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified color property for the current visual style element.

GetEnumValue(EnumProperty) GetEnumValue(EnumProperty) GetEnumValue(EnumProperty) GetEnumValue(EnumProperty)

Gibt den Wert der angegebenen Enumerationstyp-Eigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified enumerated type property for the current visual style element.

GetFilename(FilenameProperty) GetFilename(FilenameProperty) GetFilename(FilenameProperty) GetFilename(FilenameProperty)

Gibt den Wert der angegebenen Dateinameneigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified file name property for the current visual style element.

GetFont(IDeviceContext, FontProperty) GetFont(IDeviceContext, FontProperty) GetFont(IDeviceContext, FontProperty) GetFont(IDeviceContext, FontProperty)

Gibt den Wert der angegebenen Schriftarteigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified font property for the current visual style element.

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

Fungiert als Standardhashfunktion.Serves as the default hash function.

(Inherited from Object)
GetInteger(IntegerProperty) GetInteger(IntegerProperty) GetInteger(IntegerProperty) GetInteger(IntegerProperty)

Gibt den Wert der angegebenen Ganzzahleigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified integer property for the current visual style element.

GetMargins(IDeviceContext, MarginProperty) GetMargins(IDeviceContext, MarginProperty) GetMargins(IDeviceContext, MarginProperty) GetMargins(IDeviceContext, MarginProperty)

Gibt den Wert der angegebenen Rändereigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified margins property for the current visual style element.

GetPartSize(IDeviceContext, Rectangle, ThemeSizeType) GetPartSize(IDeviceContext, Rectangle, ThemeSizeType) GetPartSize(IDeviceContext, Rectangle, ThemeSizeType) GetPartSize(IDeviceContext, Rectangle, ThemeSizeType)

Gibt den Wert der angegebenen Größeneigenschaft des aktuellen visuellen Stilteils unter Verwendung der angegebenen Begrenzungen für das Zeichnen zurück.Returns the value of the specified size property of the current visual style part using the specified drawing bounds.

GetPartSize(IDeviceContext, ThemeSizeType) GetPartSize(IDeviceContext, ThemeSizeType) GetPartSize(IDeviceContext, ThemeSizeType) GetPartSize(IDeviceContext, ThemeSizeType)

Gibt den Wert der angegebenen Größeneigenschaft des aktuellen visuellen Stilteils zurück.Returns the value of the specified size property of the current visual style part.

GetPoint(PointProperty) GetPoint(PointProperty) GetPoint(PointProperty) GetPoint(PointProperty)

Gibt den Wert der angegebenen Punkteigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified point property for the current visual style element.

GetString(StringProperty) GetString(StringProperty) GetString(StringProperty) GetString(StringProperty)

Gibt den Wert der angegebenen Zeichenfolgeneigenschaft für das aktuelle visuelle Stilelement zurück.Returns the value of the specified string property for the current visual style element.

GetTextExtent(IDeviceContext, Rectangle, String, TextFormatFlags) GetTextExtent(IDeviceContext, Rectangle, String, TextFormatFlags) GetTextExtent(IDeviceContext, Rectangle, String, TextFormatFlags) GetTextExtent(IDeviceContext, Rectangle, String, TextFormatFlags)

Gibt die Größe und Position der angegebenen Zeichenfolge beim Zeichnen mit der Schriftart des aktuellen visuellen Stilelements in dem angegebenen anfänglichen umschließenden Rechteck zurück.Returns the size and location of the specified string when drawn with the font of the current visual style element within the specified initial bounding rectangle.

GetTextExtent(IDeviceContext, String, TextFormatFlags) GetTextExtent(IDeviceContext, String, TextFormatFlags) GetTextExtent(IDeviceContext, String, TextFormatFlags) GetTextExtent(IDeviceContext, String, TextFormatFlags)

Gibt die Größe und Position der angegebenen Zeichenfolge beim Zeichnen mit der Schriftart des aktuellen visuellen Stilelements zurück.Returns the size and location of the specified string when drawn with the font of the current visual style element.

GetTextMetrics(IDeviceContext) GetTextMetrics(IDeviceContext) GetTextMetrics(IDeviceContext) GetTextMetrics(IDeviceContext)

Ruft Informationen zu der vom aktuellen visuellen Stilelement angegebenen Schriftart ab.Retrieves information about the font specified by the current visual style element.

GetType() GetType() GetType() GetType()

Ruft den Type der aktuellen Instanz ab.Gets the Type of the current instance.

(Inherited from Object)
HitTestBackground(Graphics, Rectangle, Region, Point, HitTestOptions) HitTestBackground(Graphics, Rectangle, Region, Point, HitTestOptions) HitTestBackground(Graphics, Rectangle, Region, Point, HitTestOptions) HitTestBackground(Graphics, Rectangle, Region, Point, HitTestOptions)

Gibt einen Trefferüberprüfungscode zurück, der angibt, ob der Punkt im Hintergrund des aktuellen visuellen Stilelements sowie innerhalb der angegebenen Begrenzungen enthalten ist.Returns a hit test code indicating whether the point is contained in the background of the current visual style element and within the specified bounds.

HitTestBackground(IDeviceContext, Rectangle, IntPtr, Point, HitTestOptions) HitTestBackground(IDeviceContext, Rectangle, IntPtr, Point, HitTestOptions) HitTestBackground(IDeviceContext, Rectangle, IntPtr, Point, HitTestOptions) HitTestBackground(IDeviceContext, Rectangle, IntPtr, Point, HitTestOptions)

Gibt einen Trefferüberprüfungscode zurück, der angibt, ob der Punkt im Hintergrund des aktuellen visuellen Stilelements sowie innerhalb des angegebenen Bereichs enthalten ist.Returns a hit test code indicating whether the point is contained in the background of the current visual style element and within the specified region.

HitTestBackground(IDeviceContext, Rectangle, Point, HitTestOptions) HitTestBackground(IDeviceContext, Rectangle, Point, HitTestOptions) HitTestBackground(IDeviceContext, Rectangle, Point, HitTestOptions) HitTestBackground(IDeviceContext, Rectangle, Point, HitTestOptions)

Gibt einen Trefferüberprüfungscode zurück, der angibt, ob ein Punkt im Hintergrund des aktuellen visuellen Stilelements enthalten ist.Returns a hit test code indicating whether a point is contained in the background of the current visual style element.

IsBackgroundPartiallyTransparent() IsBackgroundPartiallyTransparent() IsBackgroundPartiallyTransparent() IsBackgroundPartiallyTransparent()

Gibt an, ob der Hintergrund des aktuellen visuellen Stilelements halbtransparente Bereiche oder Bereiche mit Alphablending aufweist.Indicates whether the background of the current visual style element has any semitransparent or alpha-blended pieces.

IsElementDefined(VisualStyleElement) IsElementDefined(VisualStyleElement) IsElementDefined(VisualStyleElement) IsElementDefined(VisualStyleElement)

Bestimmt, ob das angegebene visuelle Stilelement vom aktuellen visuellen Stil definiert wird.Determines whether the specified visual style element is defined by the current visual style.

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

Erstellt eine flache Kopie des aktuellen Object.Creates a shallow copy of the current Object.

(Inherited from Object)
SetParameters(String, Int32, Int32) SetParameters(String, Int32, Int32) SetParameters(String, Int32, Int32) SetParameters(String, Int32, Int32)

Legt diesen VisualStyleRenderer auf das visuelle Stilelement fest, das durch die angegebenen Werte für die Klasse, den Teil und den Zustand dargestellt wird.Sets this VisualStyleRenderer to the visual style element represented by the specified class, part, and state values.

SetParameters(VisualStyleElement) SetParameters(VisualStyleElement) SetParameters(VisualStyleElement) SetParameters(VisualStyleElement)

Legt diesen VisualStyleRenderer auf das durch das angegebene VisualStyleElement dargestellte visuelle Stilelement fest.Sets this VisualStyleRenderer to the visual style element represented by the specified VisualStyleElement.

ToString() ToString() ToString() ToString()

Gibt eine Zeichenfolge zurück, die das aktuelle Objekt darstellt.Returns a string that represents the current object.

(Inherited from Object)

Gilt für:

Siehe auch