public bool CaptureOneFrameAsync()
{
int fieldNumber = -1;
var errorCode = OfficalApi.GetSnappingNumber(_cardHandle, ref fieldNumber);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡采集图像失败");
}
if (fieldNumber < 0)
{
return(false);
}
int frameNumber = fieldNumber / 2 - 1;
if (frameNumber == -1)
{
frameNumber = AsyncFramesCount - 1;
}
//Trace.WriteLine(DateTime.Now.ToString("yyyy年MM月dd日 HH:mm:ss:fff") + " " + frameNumber);
errorCode = OfficalApi.StaticMemLock(frameNumber * FrameBufferSize,
FrameBufferSize,
ref _staticMemoryHandle,
ref _staticMemoryPointer);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡锁定图像失败");
}
//传输到缓冲区
var sourcePtr = (byte *)_staticMemoryPointer.ToPointer();
var targetPtr = (byte *)CaptureFrameBuffer.ToPointer();
for (int i = 0; i < FrameBufferSize; i++)
{
*targetPtr++ = *sourcePtr++;
}
errorCode = OfficalApi.StaticMemUnlock(_staticMemoryHandle);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡解锁图像失败");
}
return(true);
}
/// <summary>
/// 采集一帧
/// </summary>
public bool CaptureOneFrameSync()
{
//采集图像
ErrorCode errorCode = OfficalApi.CaptureSync(_cardHandle, 0, 0, true, 1);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡采集图像失败");
}
errorCode = OfficalApi.StaticMemLock(0,
FrameBufferSize,
ref _staticMemoryHandle,
ref _staticMemoryPointer);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡锁定图像失败");
}
//传输到缓冲区
var sourcePtr = (byte *)_staticMemoryPointer.ToPointer();
var targetPtr = (byte *)CaptureFrameBuffer.ToPointer();
for (int i = 0; i < FrameBufferSize; i++)
{
*targetPtr++ = *sourcePtr++;
}
errorCode = OfficalApi.StaticMemUnlock(_staticMemoryHandle);
if (errorCode != ErrorCode.CG_OK)
{
return(false);
//throw gcnew InvalidOperationException("采集卡解锁图像失败");
}
return(true);
}