全局热键

private void Form1_Load(object sender, EventArgs e)
        {
            HotKey.RegisterHotKey(Handle, 100,HotKey.KeyModifiers.Shift, Keys.S);//注册Shift+S
        }

 protected override void WndProc(ref Message m)
        {
            switch (m.WParam.ToInt32())
            {
                case 100:
                    //这里写你的操作
                    if (this.Visible||this.WindowState != FormWindowState.Minimized)
                    {
                        this.WindowState = FormWindowState.Minimized;
                        this.Hide();
                        //this.Activate();
                    }
                    else
                    {
                        //this.Activate();
                        this.Show();
                    }
                    break;
            }
            base.WndProc(ref m);
        }

private void Form1_Resize(object sender, EventArgs e) { if (this.WindowState == FormWindowState.Minimized) { this.WindowState = FormWindowState.Minimized; notifyIcon1.Visible = true; this.Hide(); //this.ShowInTaskbar = false; } }