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我只需要在屏幕上画一些东西1 帧。
诸如一行文本之类的东西。

我试图通过移动窗口来实现这一点，但我失败了。通过显示/隐藏或移入移出位置，我无法让它们仅显示 1 帧（8-16 毫秒）。

有没有办法做到这一点？

（呃，出于好奇，我是为别人做这件事，所以对需要这样做的原因进行合理化是没有用的。）

编辑：我尝试的最后一件事： 

public partial class Form2 : Form
{
    static Random rand = new Random();


    public void ShowString(string s)
    {
        this.label1.Text = s; // Has .AutoSize = true
        this.Size = this.label1.Size;

        var bnds = Screen.PrimaryScreen.WorkingArea;
        bnds.Size -= this.Size;

        this.Location = new Point(rand.Next(bnds.X, bnds.Right), rand.Next(bnds.Y, bnds.Bottom));
    }


    public Form2()
    {
        InitializeComponent();
    }

    private void Form2_Load(object sender, EventArgs e)
    {
        timer1.Enabled = true;
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        if (Location.X != -10000 && Location.Y != -10000)
        {
            Location = new Point(-10000, -10000);

            timer1.Interval = Program.interval; // How long to wait before showing two things.
        }
        else
        {
            timer1.Interval = Program.delay; // For how long to show.

            ShowString("just something to test");
        }
    }
}

在此之前： 

public partial class Form2 : Form
{
    static Random rand = new Random();


    public void ShowString(string s)
    {
        this.label1.Text = s; // Has .AutoSize = true
        this.Size = this.label1.Size;

        var bnds = Screen.PrimaryScreen.WorkingArea;
        bnds.Size -= this.Size;

        this.Location = new Point(rand.Next(bnds.X, bnds.Right), rand.Next(bnds.Y, bnds.Bottom));
    }


    public Form2()
    {
        InitializeComponent();

        timer1.Interval = Program.interval;
    }

    private void Form2_Load(object sender, EventArgs e)
    {
        timer1.Enabled = true;
    }

    private void Form2_Move(object sender, EventArgs e)
    {
        if (Location.X != -10000 && Location.Y != -10000)
        {
            Thread.Sleep(Program.delay); // Dirty cheat, but I was just trying.
            this.Location = new Point(-10000, -10000);
        }
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        ShowString("just something to test");
    }
}
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