/// <summary>
/// 取り込み完了後の後処理
/// </summary>
public void Release()
{
if (SampleGrabber == null)
{
throw new DSLab.CxDSException(HRESULT.E_FAIL);
}
if (GraphBuilder == null)
{
throw new DSLab.CxDSException(HRESULT.E_FAIL);
}
// 1) 周期処理の停止.
SampleGrabberCB.Enable = false;
// 2) 待機.
{
CxStopwatch watch = new CxStopwatch();
watch.Start();
while (SampleGrabberCB.IsBusy)
{
watch.Stop();
if (m_Timeout <= watch.Elapsed)
{
break;
}
System.Threading.Thread.Sleep(1);
}
}
// 3) 解放.
if (SampleGrabberCB.IsBusy == false)
{
SampleGrabberCB.Buffer.Clear();
}
}
/// <summary>
/// 1フレーム取り込み完了待機
/// </summary>
/// <param name="timeout">タイムアウト (msec) [範囲:-1=無限、0~=有限]</param>
/// <returns>
/// 1フレームの取り込みが完了するまで処理をブロックします。<br/>
/// 取り込みが完了した場合は取り込み完了後のフレーム指標を返します。<br/>
/// それ以外は例外を発行します。<br/>
/// </returns>
public TxFrameIndex WaitFrame(int timeout)
{
if (SampleGrabber == null)
{
throw new DSLab.CxDSException(HRESULT.E_FAIL);
}
if (GraphBuilder == null)
{
throw new DSLab.CxDSException(HRESULT.E_FAIL);
}
TxFrameIndex current = SampleGrabberCB.FrameIndex;
if (SampleGrabberCB.FrameIndex.Flag == 1)
{
// Continuous != true:
//
return(current); // reached
}
else
{
// Continuous == true:
//
CxStopwatch watch = new CxStopwatch();
watch.Start();
while (true)
{
if (SampleGrabberCB.FrameIndex.Frame != current.Frame)
{
return(current); // reached
}
// interrupt (stop or abort)
if (SampleGrabberCB.Enable == false)
{
throw new CxException(ExStatus.Interrupted);
}
watch.Stop();
if (0 <= timeout && timeout <= watch.Elapsed)
{
throw new CxException(ExStatus.Interrupted);
}
System.Threading.Thread.Sleep(1);
}
}
}
/// <summary>
/// 1フレーム取り込み完了待機
/// </summary>
/// <param name="timeout">タイムアウト (msec) [範囲:-1=無限、0~=有限]</param>
/// <returns>
/// 1フレームの取り込みが完了するまで処理をブロックします。<br/>
/// 取り込みが完了した場合は取り込み完了後のフレーム指標を返します。<br/>
/// それ以外は例外を発行します。<br/>
/// </returns>
public TxFrameIndex WaitFrame(int timeout)
{
if (SampleGrabber == null)
throw new DSLab.CxDSException(HRESULT.E_FAIL);
if (GraphBuilder == null)
throw new DSLab.CxDSException(HRESULT.E_FAIL);
TxFrameIndex current = SampleGrabberCB.FrameIndex;
if (SampleGrabberCB.FrameIndex.Flag == 1)
{
// Continuous != true:
//
return current; // reached
}
else
{
// Continuous == true:
//
CxStopwatch watch = new CxStopwatch();
watch.Start();
while (true)
{
if (SampleGrabberCB.FrameIndex.Frame != current.Frame)
{
return current; // reached
}
// interrupt (stop or abort)
if (SampleGrabberCB.Enable == false)
throw new CxException(ExStatus.Interrupted);
watch.Stop();
if (0 <= timeout && timeout <= watch.Elapsed)
throw new CxException(ExStatus.Interrupted);
System.Threading.Thread.Sleep(1);
}
}
}
/// <summary>
/// 取り込み完了後の後処理
/// </summary>
public void Release()
{
if (SampleGrabber == null)
throw new DSLab.CxDSException(HRESULT.E_FAIL);
if (GraphBuilder == null)
throw new DSLab.CxDSException(HRESULT.E_FAIL);
// 1) 周期処理の停止.
SampleGrabberCB.Enable = false;
// 2) 待機.
{
CxStopwatch watch = new CxStopwatch();
watch.Start();
while (SampleGrabberCB.IsBusy)
{
watch.Stop();
if (m_Timeout <= watch.Elapsed) break;
System.Threading.Thread.Sleep(1);
}
}
// 3) 解放.
if (SampleGrabberCB.IsBusy == false)
SampleGrabberCB.Buffer.Clear();
}