一种委托

public class IOControl
{
#region 全局变量

public delegate void GetDiInfoEvent(int diNum);
//捕捉DI上升沿信号
public GetDiInfoEvent ReturnDiUpNum;
//捕捉DI下降沿信号
public GetDiInfoEvent ReturnDiDownNum;

/// <summary>
/// IO卡实时监控反馈
/// </summary>
/// <param name="isOpen"></param>
public delegate void showIOStautsDelegate(bool isOpen);
public showIOStautsDelegate _showIOStauts;

/// <summary>
/// 展示信息
/// </summary>
/// <param name="ptr"></param>
public delegate void showMessageDelegate(string message, string color = ColorCode.DefaultMessageColor);
public showMessageDelegate _showMessage;

private void ShowDODIStatusOnlyOne(byte[] rst)
{
byte distatus = rst[8];
for (int i = 0; i < _dodiCount; i++)
{
if ((distatus & (1 << i)) == 0x00)
{
if (_diList[i] == OnOffEnum.On)
{
lock (_diLock)
{
_diList[i] = OnOffEnum.Off;
ReturnDiDownNum?.BeginInvoke(i, null, null);
}
}
}
else
{
if (_diList[i] == OnOffEnum.Off)
{
lock (_diLock)
{
_diList[i] = OnOffEnum.On;
ReturnDiUpNum?.BeginInvoke(i, null, null);
}
}
}
}

}





public partial class WAChartOne : Form

{

public void SetDIO(IOControl dio)
{
if (dio == null)
{
return;
}
if (_dio != null)
{
_dio.ReturnDiUpNum -= new IOControl.GetDiInfoEvent(GetDiUp);
_dio.ReturnDiDownNum -= new IOControl.GetDiInfoEvent(GetDiDown);
_dio._showIOStauts -= new IOControl.showIOStautsDelegate(ShowIOStatus);
}
_dio = dio;
_dio.ReturnDiUpNum += new IOControl.GetDiInfoEvent(GetDiUp);
_dio.ReturnDiDownNum += new IOControl.GetDiInfoEvent(GetDiDown);
_dio._showIOStauts += new IOControl.showIOStautsDelegate(ShowIOStatus);
_dio.ReturnDiStatus();
}

private void ShowIOStatus(bool isOpen)
{
if (IOStatusLB.InvokeRequired)
{
IOStatusLB.Invoke(new Action(() =>
{
IOStatusLB.Text = isOpen ? "已连接" : "未连接";
IOStatusLB.BackColor = isOpen ? Color.Green : Color.Red;
if (isOpen)
{
ResetBT.Enabled = true;
StartBT.Enabled = true;
}
else
{
ResetBT.Enabled = false;
StartBT.Enabled = false;
}
}));
}
else
{
IOStatusLB.Text = isOpen ? "已连接" : "未连接";
IOStatusLB.ForeColor = isOpen ? Color.Green : Color.Red;
if (isOpen)
{
ResetBT.Enabled = true;
StartBT.Enabled = true;
}
else
{
ResetBT.Enabled = false;
StartBT.Enabled = false;
}
}
}
//上升沿
private void GetDiUp(int index)
{
switch (index)
{
case 0:
//使能
_canRun = true;
ResetBT.Enabled = true;
StartBT.Enabled = true;
break;
case 1:
//复位
snap.Enabled = true;
grab.Enabled = true;
freeze.Enabled = true;
ResetBT.Enabled = true;
StartBT.Enabled = true;
_dio.OnOffDoDi(2, false, _iOConfig);
_showMessage?.Invoke("复位完成");
break;
case 2:
//到位
snap.Enabled = true;
grab.Enabled = true;
freeze.Enabled = true;
ResetBT.Enabled = true;
StartBT.Enabled = true;
_dio.OnOffDoDi(0, false, _iOConfig);
_camera.Freeze();
_showMessage?.Invoke("运动并拍照完成");
break;
case 3:
break;
case 4:
break;
case 5:
break;
case 6:
break;
case 7:
break;
default:
break;
}
}

//下降沿
private void GetDiDown(int index)
{
switch (index)
{
case 0:
_canRun = false;
ResetBT.Enabled = false;
StartBT.Enabled = false;
break;
case 1:
break;
case 2:
break;
case 3:
break;
case 4:
break;
case 5:
break;
case 6:
break;
case 7:
break;
default:
break;
}
}

}