我做了一个矩形，如何检查鼠标是否单击了它?

问题描述

如何检查鼠标是否单击了矩形?

How do I check if a mouse clicked a rectangle?

Graphics gfx;
Rectangle hitbox;
hitbox = new hitbox(50,50,10,10);
//TIMER AT THE BOTTOM
gfx.Draw(System.Drawing.Pens.Black,hitbox);

推荐答案

如果您的"gfx"是表单中的"e.Graphics ..."，则只是一个简单而又肮脏的示例:

Just a sample quick and dirty, if your "gfx" is a "e.Graphics..." from a Form:

  public partial class Form1 : Form
  {
    private readonly Rectangle hitbox = new Rectangle(50, 50, 10, 10);
    private readonly Pen pen = new Pen(Brushes.Black);

    public Form1()
    {
      InitializeComponent();
    }

    private void Form1_Paint(object sender, PaintEventArgs e)
    {
      e.Graphics.DrawRectangle(pen, hitbox);
    }

    private void Form1_MouseDown(object sender, MouseEventArgs e)
    {
      if ((e.X > hitbox.X) && (e.X < hitbox.X + hitbox.Width) &&
          (e.Y > hitbox.Y) && (e.Y < hitbox.Y + hitbox.Height))
      {
        Text = "HIT";
      }
      else
      {
        Text = "NO";
      }
    }
  }

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