SharpDX, DirectWrite and Windows Forms

本文关键字：Windows Forms and DirectWrite SharpDX | 更新日期: 2023-09-27 18:29:03

是否可以在WinForm应用程序中使用DirectWrite将文本渲染到PictureBox？

我正在使用SharpDX，并且已经浏览了DirectWrite示例，试图构建我所能构建的最简单的工作案例。

我创建了一个Form，只添加了一个pictureBox。显示表单，但使用PictureBox看不到任何内容。

任何指导都将不胜感激。

谢谢！

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
//using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using SharpDX.Direct2D1;
using SharpDX.DXGI;
using SharpDX;
using SharpDX.DirectWrite;
using AlphaMode = SharpDX.Direct2D1.AlphaMode;
using Factory = SharpDX.Direct2D1.Factory;
namespace d2dwTextEdit
{
public partial class Form1 : Form
{
    public Factory Factory2D { get; private set; }
    public SharpDX.DirectWrite.Factory FactoryDWrite { get; private set; }
    public WindowRenderTarget RenderTarget2D { get; private set; }
    public SolidColorBrush SceneColorBrush { get; private set; }
    public TextFormat TextFormat { get; private set; }
    public SharpDX.RectangleF ClientRectangle { get; private set; }

    public Form1()
    {
        InitializeComponent();
        Initialize();
        Render();
    }
    protected void Initialize()
    {
        Factory2D = new SharpDX.Direct2D1.Factory();
        FactoryDWrite = new SharpDX.DirectWrite.Factory();
        HwndRenderTargetProperties properties = new HwndRenderTargetProperties();
        properties.Hwnd = pictureBox1.Handle;
        properties.PixelSize = new System.Drawing.Size(pictureBox1.Width, pictureBox1.Height);
        properties.PresentOptions = PresentOptions.None;
        TextFormat = new TextFormat(FactoryDWrite, "Calibri", 30) { TextAlignment = TextAlignment.Center, ParagraphAlignment = ParagraphAlignment.Center };
        RenderTarget2D = new WindowRenderTarget(Factory2D, new RenderTargetProperties(new PixelFormat(Format.Unknown, AlphaMode.Premultiplied)), properties);
        RenderTarget2D.AntialiasMode = AntialiasMode.PerPrimitive;
        RenderTarget2D.TextAntialiasMode = TextAntialiasMode.Cleartype;
        ClientRectangle = new RectangleF(0, 0, pictureBox1.Width, pictureBox1.Height);
        SceneColorBrush = new SolidColorBrush(RenderTarget2D, Colors.White);
        SceneColorBrush.Color = Colors.Black;               

    }
    private void Render()
    {
        RenderTarget2D.Clear(Colors.White);
        RenderTarget2D.DrawText("Hello Marshall", TextFormat, ClientRectangle, SceneColorBrush);
    }
}
}

SharpDX, DirectWrite and Windows Forms

嗨，我有点遵循了你的问题示例，但我最终设法解决了问题，因为我想独立开始编写游戏，所有的绘制方法都必须在RenderTarget类的beginDraw和endDraw方法中。您还需要实现RenderLoop类，这将为您提供回调循环委托。对我的代码过于粗糙表示歉意。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using SharpDX.Direct3D;
using SharpDX.Direct2D1;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using SharpDX.DXGI;
using SharpDX;
using SharpDX.Windows;
using System.Globalization;

using SharpDX.DirectWrite;
namespace dx11
{

    public partial class Form1 : Form
    {
        private SharpDX.Direct3D10.Device _mDevice = null;
        WindowRenderTarget wndRender = null;
        SharpDX.Direct2D1.Factory fact = new SharpDX.Direct2D1.Factory(SharpDX.Direct2D1.FactoryType.SingleThreaded);
        SolidColorBrush scenebrush;
        RenderTargetProperties rndTargProperties;
        HwndRenderTargetProperties hwndProperties;
        SharpDX.Windows.RenderForm form = new RenderForm();
        RenderLoop.RenderCallback callback;
        public Form1()
        {
            InitializeComponent();
            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);
            form.Width = 600;
            form.Height = 600;
            test();
            callback = new RenderLoop.RenderCallback(Render);
            RenderLoop.Run(form, callback);                            
        }
        private void test()
        {
                rndTargProperties = new RenderTargetProperties(new PixelFormat(Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied));
                hwndProperties = new HwndRenderTargetProperties();
                hwndProperties.Hwnd = form.Handle;
                hwndProperties.PixelSize = new SharpDX.DrawingSize(form.ClientSize.Width, form.ClientSize.Height);
                hwndProperties.PresentOptions = PresentOptions.None;
                wndRender = new WindowRenderTarget(fact, rndTargProperties, hwndProperties);
                scenebrush = new SolidColorBrush(wndRender, Colors.Red);
               // scenebrush.Color = Colors.Cornsilk;
                form.Show();
        }
        public void Render()
        {    
            wndRender.BeginDraw();
            wndRender.Clear(Colors.DarkBlue);
            wndRender.DrawRectangle(new SharpDX.RectangleF(10, 10, 50, 50), scenebrush, 2.00F);
            wndRender.Flush();
               wndRender.EndDraw();
        }
    }
}

这将创建一个蓝色表单，左上角有一个红色正方形。

您实际上并不想使用HwndRenderTarget渲染"到PictureBox中"。实际上，您想要渲染到PictureBox有渲染任务的位图中。您可以通过创建一个"共享位图"（我不太熟悉SharpDX，但基本方法是ID2D1RenderTarget:：CreateSharedBitmap（）），渲染到该位图中，然后在调用EndDraw（）后使PictureBox无效。

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