抗锯齿标签和透明背景（c＃visual studio）

Question

如果我制作了一个包含多个标签的表单（某些动态标签），我该如何为标签添加抗锯齿功能并删除/使表单背景透明。

另外，如何使表单背景不可见，只留下标签？

• （我尝试了一些在代码中注释掉的东西，这有点有效）*

• 使用visual studio

目前情况如何：

我希望如何：

C＃

using System;
using System.Drawing;
using System.Drawing.Text;
using System.Windows.Forms;
using System.Threading;

namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        Thread thread1;

        public Form1()
        {
            InitializeComponent();

            /*// Problem code:
            this.Paint += new System.Windows.Forms.PaintEventHandler(this.SmoothingFonts_Paint); 
            //end*/

            thread1 = new Thread(new ThreadStart(Thread_test));
            thread1.IsBackground = true;
            thread1.Start();
        }

        public void Thread_test()
        {
            int i = 0;
            while (true)
            {
                i++;
                label2.Text = Convert.ToString(i);
                Thread.Sleep(1000);
            }
        }

        /*//Problem code:
        private void SmoothingFonts_Paint(object sender, System.Windows.Forms.PaintEventArgs e) 
        {                                                                                       
            Font TextFont = new Font("Segoe UI", 48, FontStyle.Bold);
            Color myColor = Color.FromArgb(30, 35, 42);
            SolidBrush myBrush = new SolidBrush(myColor);
            e.Graphics.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
            e.Graphics.DrawString("TestTEXT 2", TextFont, myBrush, 20, 20);
        }
        //end*/
    }
}

Download Visual Studio Project Here

Answer 1

以下是我最终解决的最终解决方案：

而不是Windows窗体我只是做了WPF，然后AA和透明度开箱即用（超级简单）。

WPF代码：

using System;
using System.Windows;
using System.Windows.Threading;

namespace WpfApplication1
{
    public partial class MainWindow : Window
    {
        DispatcherTimer timer = new DispatcherTimer();


        public MainWindow()
        {
            InitializeComponent();
            timer.Tick += new EventHandler(timer_tick);
            timer.Interval = new TimeSpan(0, 0, 1);

        }

        int dynCount = 0;

        private void timer_tick(object sender, EventArgs e)
        {
            dynCount++;
            dynNum.Content = dynCount.ToString();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            timer.Start();

        }


    }
}

<强> Download "WPF" visual studio project here

以下是Windows窗体中的一些其他测试：

使用AA标记文本，但使用透明背景 NOT ：

<强> CODE：

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

namespace WindowsFormsApplication3
{

    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
        }

        Label[] _Labels = new Label[2];
        String[] _LabelsText = new string[2];
        Graphics g;
        Bitmap btm;
        Color myColor;
        SolidBrush myBrush;


        private void Form1_Load(object sender, EventArgs e)
        {
            _Labels[0] = label1;
            _Labels[1] = label2;

            _LabelsText[0] = "CPU";
            _LabelsText[1] = "0";

            label1.Text = "";
            label2.Text = "";
            draw();
            this.BackgroundImage = btm;

        }

        public void draw()
        {
            btm = new Bitmap(this.Width, this.Height);
            g = Graphics.FromImage(btm);
            for (int i = 0; i < _Labels.Length; i++)
            {
                myColor = _Labels[i].ForeColor;
                myBrush = new SolidBrush(myColor);

                g.TextRenderingHint = TextRenderingHint.AntiAlias;
                g.DrawString(_LabelsText[i], _Labels[i].Font, myBrush, _Labels[i].Location);
            }
        }


        int dynNumCount = 0;
        private void dynamicNumber_Tick(object sender, EventArgs e)
        {
            dynNumCount++;
            _LabelsText[1] = Convert.ToString(dynNumCount);
            draw();
            this.BackgroundImage = btm;

        }
    }
}

<强> Download "AA only" visual studio project here

使用AA和透明背景标记文本，使用直接绘制到桌面：

（我在重绘之前清除了问题所以你需要解决这个问题。）

<强> CODE：

    using System;
    using System.Runtime.InteropServices;
    using System.Drawing;
    using System.Drawing.Text;
    using System.Windows.Forms;


    namespace WindowsFormsApplication3
    {

        public partial class Form1 : Form
        {

            [DllImport("User32.dll")]
            static extern IntPtr GetDC(IntPtr hwnd);

            public Form1()
            {
                InitializeComponent();
                this.Opacity = 0;
            }

            Label[] _Labels = new Label[2];
            String[] _LabelsText = new string[2];
            Graphics g;
            Color myColor;
            SolidBrush myBrush;


            private void Form1_Load(object sender, EventArgs e)
            {

                _Labels[0] = label1;
                _Labels[1] = label2;

                _LabelsText[0] = "CPU";
                _LabelsText[1] = "0";

                label1.Text = "";
                label2.Text = "";
                draw();
            }


            private void draw()
            {
                using (Graphics g = Graphics.FromHdc(GetDC(IntPtr.Zero)))
                {
                    g.TextRenderingHint = TextRenderingHint.AntiAlias;
                    Font theFont = new Font(FontFamily.GenericSansSerif, 100.0F, FontStyle.Bold);


                    for (int i = 0; i < _Labels.Length; i++)
                    {
                        myColor = _Labels[i].ForeColor;
                        myBrush = new SolidBrush(myColor);
                        g.TextRenderingHint = TextRenderingHint.AntiAlias;
                        g.DrawString(_LabelsText[i], _Labels[i].Font, myBrush, _Labels[i].Location);
                    }

                }
            }


            int dynNumCount = 0;
            private void dynamicNumber_Tick(object sender, EventArgs e)
            {
                dynNumCount++;
                _LabelsText[1] = Convert.ToString(dynNumCount);
                draw();
            }
        }
    }

<强> Download "Draw to desktop" visual studio project here

Answer 2

你试过这个吗？

    this.BackColor = System.Drawing.Color.Black;
    this.TransparencyKey= System.Drawing.Color.Black;


    label1.BackColor = System.Drawing.Color.Transparent;
    label1.ForeColor = Color.White;

前两行使表单透明

并且第二条线使标签透明，所以它就像玻璃一样，标签背面没有任何东西

希望对你有所帮助