检查鼠标是否没有移动(静止不动)c#WinForms [英] Check if Mouse isn't moved (stands still) c# WinForms

问题描述

如果鼠标不移动3秒钟，我希望button5消失.如果鼠标移动，则应再次出现button1.我使用带有以下代码的计时器:

I want button5 to dissapear if the mouse isn't moved for 3 seconds. If the mouse moved, button1 should appear again. I used a timer with this code:

    private void timer2_Tick(object sender, EventArgs e)
    {
        if (button5.Visible == true)
        {

            timer2.Stop();
            button2.Visible = false;
            button3.Visible = false;
            aimen_IPTV2.Visible = false;
            button5.Visible = false;
            button6.Visible = false;
            aimen_IPTV1.Visible = false;

        }
    }


    private void transpCtrl1_MouseMove(object sender, MouseEventArgs e)
    {

            button5.Visible = true;
            button6.Visible = true;
            aimen_IPTV1.Visible = true;



        }`

没有用，有人可以帮我吗?

It didn't work can somebody help me out ?

推荐答案

您最好的选择是实现

Your best bet is to implement IMessageFilter so you can trap mouse movement across your whole application before it gets dispatched to each individual control (where it will be a mess to intercept):

public partial class Form1 : Form
{

    public Form1()
    {
        InitializeComponent();
    }

    private MyFilter mf;

    private void Form1_Load(object sender, EventArgs e)
    {
        button5.Visible = false;
        mf = new MyFilter();
        mf.MouseMoved += Mf_MouseMoved;
        mf.ThreeSecondWithoutMouseMove += Mf_ThreeSecondWithoutMouseMove;
        Application.AddMessageFilter(mf);
    }

    private void Mf_MouseMoved()
    {
        button5.Visible = true;
    }

    private void Mf_ThreeSecondWithoutMouseMove()
    {
        button5.Visible = false;
    }

    private void button5_Click(object sender, EventArgs e)
    {
        MessageBox.Show("You clicked me!");
    }
}

public class MyFilter : IMessageFilter
{

    public delegate void dlgMouseMoved();
    public delegate void dlgThreeSeconds();
    public event dlgMouseMoved MouseMoved;
    public event dlgThreeSeconds ThreeSecondWithoutMouseMove;

    private Point lastPoint;
    private const int WM_MOUSEMOVE = 0x200;
    private System.Windows.Forms.Timer tmr;

    public MyFilter()
    {
        tmr = new System.Windows.Forms.Timer();
        tmr.Enabled = false;
        tmr.Interval = (int)TimeSpan.FromSeconds(3).TotalMilliseconds;
        tmr.Tick += Tmr_Tick;
    }

    bool IMessageFilter.PreFilterMessage(ref Message m)
    {
        switch (m.Msg)
        {
            case WM_MOUSEMOVE: // you WILL get phantom WM_MOUSEMOVE messages, when the mouse has NOT moved!
                Point curPoint = Cursor.Position;
                if (!curPoint.Equals(lastPoint)) 
                {
                    lastPoint = curPoint;
                    if (MouseMoved != null)
                    {
                        MouseMoved();
                    }
                    tmr.Stop();
                    tmr.Start();
                }
                break;
        }
        return false; // handle messages normally
    }

    private void Tmr_Tick(object sender, EventArgs e)
    {
        tmr.Stop();
        if (ThreeSecondWithoutMouseMove != null)
        {
            ThreeSecondWithoutMouseMove();
        }
    }

}

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