寸動 (Jog) 鈕：寸動運動

寸動運動使用兩個寸動鈕：向前寸動及向後寸動，鈕的行為可客製化，此範例使用方式如下：

• 寸動：按住滑鼠左鍵。
• 停止寸動：放開滑鼠左鍵。

因為不使用點擊行為，因此代碼未寫在 OnBnClicked 函式中，而是使用 PreTranslateMessage 來接收滑鼠事件，當按住滑鼠左鍵時，JogAxis 會用來將軸向前或向後寸動；當放開滑鼠鍵時，HaltAxis 則會用來停止寸動，而已轉換為雙精準浮點數字的指令速度會從 m_CMD_VEL 接收。

BOOL CMFC_GUIDlg::PreTranslateMessage(MSG* pMsg)
{
   if (pMsg->message == WM_LBUTTONDOWN)
   {
      if (pMsg->hwnd == GetDlgItem(IDC_BTN_JOG_F)->m_hWnd)
      {
         int Mindex = m_MotorList.GetCurSel();

         //Commands a never-ending controlled motion at a specified velocity.
         ::JogAxis(Mindex, double(m_CMD_VEL), 36000, 36000, 3600000, mcPositiveDirection);
      }
      if (pMsg->hwnd == GetDlgItem(IDC_BTN_JOG_B)->m_hWnd)
      {
         int Mindex = m_MotorList.GetCurSel();

         //Commands a never-ending controlled motion at a specified velocity.
         ::JogAxis(Mindex, double(m_CMD_VEL), 36000, 36000, 3600000, mcNegativeDirection);
      }
   }
   if (pMsg->message == WM_LBUTTONUP)
   {
      if (pMsg->hwnd == GetDlgItem(IDC_BTN_JOG_F)->m_hWnd)
      {
         int Mindex = m_MotorList.GetCurSel();

         //Commands a controlled motion stop.
         ::HaltAxis(Mindex, 3600, 360000, mcAborting);
      }
      if (pMsg->hwnd == GetDlgItem(IDC_BTN_JOG_B)->m_hWnd)
      {
         int Mindex = m_MotorList.GetCurSel();

         //Commands a controlled motion stop.
         ::HaltAxis(Mindex, 3600, 360000, mcAborting);
      }
   }
   return CDialog::PreTranslateMessage(pMsg);
}