如何检查鼠标是否在C＃中的图像上

Question

这是我用C＃编写的小程序的接口。 我希望无论何时在图像上单击鼠标，我都应该能够获得光标的x和y值。

MessageBox.show没有显示鼠标指针的值

namespace ChromaKeyerControl
{
  public partial class Form1 : Form
   {
    public Form1()
    {
        InitializeComponent();
        this.MouseDown += new MouseEventHandler(this.MyMouseDown);

    }


    private void pictureBox1_Click(object sender, EventArgs e)
    {


    }


    private void MyMouseDown(object sender, MouseEventArgs e)
    {

        bool entered = pictureBox1.ClientRectangle.Contains(pictureBox1.PointToScreen(Cursor.Position));

      //  if( pictureBox1.ClientRectangle.Contains(pictureBox1.PointToClient(Cursor.Position)))

        if (entered)
        {

            MessageBox.Show(Cursor.Position.ToString());
        }

    }
}

}

Answer 1

您需要将鼠标点击与PictureBox绑定，而不是Form自己绑定

this.pictureBox1.MouseClick += pictureBox1_MouseClick;

绑定MouseClick，在事件方法中你可以得到X和Y，然后调用你想要的方法......

    public Form1()
    {
        InitializeComponent();
        pictureBox1.MouseClick += pictureBox1_MouseClick;
    }

    private void pictureBox1_MouseClick(object sender, MouseEventArgs e)
    {
        MessageBox.Show(e.X + " - " + e.Y);
        CallAnotherMethod(e.X, e.Y);
    }