鼠標單擊循環使用按鈕（C＃）

Question

我是C＃的新手，請耐心等待！

我正在寫一個程序，通過RS232發送代碼到自制望遠鏡安裝。

我目前最大的問題是希望很簡單（但相當困難的我！）

舉個例子說，我有一個按鈕，我想執行一個循環時，鼠標左鍵按住，（這將是一個232個數據的連續流），然後當鼠標左鍵被釋放時，我需要循環停止並執行另一行代碼。

我真誠地希望我給的信息是足夠的，有人是一種足以幫助我一起（我在網上搜索答案相信我！）

非常感謝。

Answer 1

掛鉤到按鈕上的MouseDown和MouseUp事件。 MouseDown事件應該產生一個線程，或者向線程發出信號以開始執行循環。 MouseUp事件應該通知線程停止執行循環。

事情是這樣的：

public class InterruptibleLoop 
{ 
    private volatile bool stopLoop; 
    private Thread loopThread; 

    public void Start() { 
     // If the thread is already running, do nothing. 
     if (loopThread != null) { 
      return; 
     } 

     // Reset the "stop loop" signal. 
     stopLoop = false; 

     // Create and start the new thread. 
     loopThread = new Thread(LoopBody); 
     loopThread.Start(); 
    } 

    public void Stop() { 
     // If the thread is not running, do nothing. 
     if (loopThread == null) { 
      return; 
     } 

     // Signal to the thread that it should stop looping. 
     stopLoop = true; 

     // Wait for the thread to terminate. 
     loopThread.Join(); 

     loopThread = null; 
    } 

    private void LoopBody() { 
     while (!stopLoop) { 
      // Do your work here 
     } 
    } 
} 

Answer 2

方法1： 首先創建一個設置爲你想要發送的數據的頻率間隔計時器。並在tick事件中發送數據。爲按鈕的鼠標向下事件和按鈕的鼠標向上事件創建一個事件。在鼠標停止事件中，啓動計時器。在鼠標向上事件中，停止計時器。

方法2： 而不是在鼠標停止事件啓動一個計時器，開始一個新的線程，你做一個連續的數據發送循環。停止鼠標向上事件的線程。

Answer 3

namespace Scope_Project_Ver_2 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent();    
      // *** Output data timer *** 
      otimer.Interval = 50; 
      // otimer.Interval = isendFreq; 
      otimer.Tick += new EventHandler(otimer_Tick); 
      // *** Input data timer *** 
      // itimer.Interval = 601;      <- to be unchecked 
      // itimer.Tick += new EventHandler(itimer_Tick); <- to be unchecked 
     } 

     public int b1,b2,b3,b4,b5; 
     public string sb1, sb2, sb3, sb4, sb5; 
     public int ivorSpeed; 
     public string svorSpeed; 
     public int ihorSpeed; 
     public string shorSpeed; 
     public int isendFreq; 


     private void sendDataB_Click(object sender, MouseEventArgs e) 
     { 
      if (sendDataCB.Checked) 
      { 
       sendDataCB.Checked = false; 
       if (otimer.Enabled) 
        otimer.Stop(); 
      } 
      else 
      { 
       sendDataCB.Checked = true; 
       if (!otimer.Enabled) 
        otimer.Start(); 
      } 
     } 


     void otimer_Tick(object sender, EventArgs e) 
     { 
      SerialPort port = new SerialPort(
      "COM1", 9600, Parity.None, 8, StopBits.One); 
      port.Open(); 
      port.Write("Q"); //       Q 
      port.Write(sb1); //       1 
      port.Write(sb2); //       2 
      // Binary stuff // Ver Speed Binary  3   
      byte[] bverbinary = new byte[1]; 
      byte verbinary = 0; 
      verbinary = Byte.Parse(svorSpeed); 
      bverbinary[0] = verbinary; 
      port.Write(bverbinary, 0, bverbinary.Length); 
      // End of Binary stuff for Ver Speed 
      // Binary stuff // Hor Speed Binary   4 
      byte[] bhorbinary = new byte[1]; 
      byte horbinary = 0; 
      horbinary = Byte.Parse(shorSpeed); 
      bhorbinary[0] = horbinary; 
      port.Write(bhorbinary, 0, bhorbinary.Length); 
      port.Write(sb5); // Movement    5 
      port.Close(); 
     } 


     private void vorSpeed_ValueChanged(object sender, EventArgs e) 
     { 
      // MessageBox.Show((this.vorSpeed.Value).ToString()); 
      this.Text = "You changed the Vertical Speed to " + vorSpeed.Value; 
      ivorSpeed = (int)vorSpeed.Value; 
      svorSpeed = ivorSpeed.ToString(); 
     } 

     private void horSpeed_ValueChanged(object sender, EventArgs e) 
     { 
      // MessageBox.Show((this.horSpeed.Value).ToString()); 
      this.Text = "You changed the Horizontal Speed to " + horSpeed.Value; 
      ihorSpeed = (int)horSpeed.Value; 
      shorSpeed = ihorSpeed.ToString(); 
     } 

     private void scopeUp_MouseDown(object sender, MouseEventArgs e) // Scope Up On 
     { 
      b1 = 2; 
      b2 = 0; 
      b5 = 1; 
      sb1 = b1.ToString(); 
      sb2 = b2.ToString(); 
      sb3 = b3.ToString(); 
      sb4 = b4.ToString(); 
      sb5 = b5.ToString(); 
     } 

     private void scopeUp_MouseUp(object sender, MouseEventArgs e) // Scope Up Off 
     { 

     } 

     private void scopeRight_MouseDown(object sender, MouseEventArgs e) 
     { 
      b1 = 1; 
      b2 = 2; 
      b5 = 1; 
      sb1 = b1.ToString(); 
      sb2 = b2.ToString(); 
      sb3 = b3.ToString(); 
      sb4 = b4.ToString(); 
      sb5 = b5.ToString(); 
     } 

     private void scopeRight_MouseUp(object sender, MouseEventArgs e) 
     { 

     } 

     private void scopeDown_MouseDown(object sender, MouseEventArgs e) 
     { 
      b1 = 2; 
      b2 = 1; 
      b5 = 1; 
      sb1 = b1.ToString(); 
      sb2 = b2.ToString(); 
      sb3 = b3.ToString(); 
      sb4 = b4.ToString(); 
      sb5 = b5.ToString(); 
     } 

     private void scopeDown_MouseUp(object sender, MouseEventArgs e) 
     { 

     } 

     private void scopeLeft_MouseDown(object sender, MouseEventArgs e) 
     { 
      b1 = 0; 
      b2 = 2; 
      b5 = 1; 
      sb1 = b1.ToString(); 
      sb2 = b2.ToString(); 
      sb3 = b3.ToString(); 
      sb4 = b4.ToString(); 
      sb5 = b5.ToString(); 
     } 

     private void scopeLeft_MouseUp(object sender, MouseEventArgs e) 
     { 

     } 

     private void scopeStop_Click(object sender, EventArgs e) 
     { 
      b1 = 0; 
      b2 = 0; 
      b5 = 0; 
      sb1 = b1.ToString(); 
      sb2 = b2.ToString(); 
      sb3 = b3.ToString(); 
      sb4 = b4.ToString(); 
      sb5 = b5.ToString(); 
     } 

     private void sendFreq_ValueChanged(object sender, EventArgs e) 
     { 
      this.Text = "You changed the send Freq to " + sendFreq.Value + " m/s"; 
      isendFreq = (int)sendFreq.Value; 
     } 
    } 
}