public interface ICogAcqFifo : ICogChangedEvent

public interface ICogAcqFifo : ICogChangedEvent

Public Interface ICogAcqFifo 
	Inherits ICogChangedEvent

Public Interface ICogAcqFifo 
	Inherits ICogChangedEvent

public interface class ICogAcqFifo : ICogChangedEvent

public interface class ICogAcqFifo : ICogChangedEvent

The ICogAcqFifo type exposes the following members.

	Name	Description
	Acquire	Acquire a new image.
	AcquiredPixelFormat	The pixel format of the image as the camera acquires them.
	AcquireVisionData	Acquire an object that can hold one of the following types: an image, a point cloud or a vision data container.
	CompleteAcquire	Completes the acquisition specified by the given ticket and returns the acquired image. If the ticket is omitted, or set to -1, the uncompleted acquire that was least recently started will be completed.
	CompleteAcquireEx	Completes the acquisition specified by the requested ticket and returns the acquired image. This method is the same as CompleteAcquire(Int32, Int32 , Int32 ) but passes and returns its results in an ICogAcqInfo.
	CompleteAcquireVisionDataEx	Returns an ICogVisionData that can hold one of the following types: an image, a point cloud or a vision data container.
	Connect	Cognex Internal use only.
	CreateEventSink	Create an object in the event thread of this fifo. This allows single-threaded objects to sink acquisition events efficiently.
	Flush	Flush all outstanding queued acquisitions.
	GetFifoState	Returns the instantaneous state of the fifo.
	GetInternal	Cognex Internal use only.
	Prepare	Prepare the fifo so it is ready to start taking triggers immediately.
	ResumeAndRaiseChangedEvent	Re-enables raising of the Changed event after SuspendChangedEvent has been called, and raises the Changed event if the ChangedEventSuspended count is reduced to zero and any changes were made while events were suspended. Must be called once for each call to SuspendChangedEvent. (Inherited from ICogChangedEvent.)
	SetInternal	Cognex Internal use only.
	StartAcquire	Start a new acquisition. The returned value is a ticket that may be handed to CompleteAcquire.
	SuspendChangedEvent	Temporarily suspends the raising of the Changed event. May be called more than once, and a corresponding call to ResumeAndRaiseChangedEvent must be made for each call to SuspendChangedEvent. (Inherited from ICogChangedEvent.)

	Name	Description
	AutoPrepareEnabled	Whether a fifo is automatically prepared after a property is changed. Default is true.
	CameraPort	Camera port number which this fifo is attached to.
	ChangedEventSuspended	Indicates if the raising of the Changed event has been suspended. (Inherited from ICogChangedEvent.)
	CoordinateSpaceTree	Reads or sets a custom space tree that will be copied into all images acquired from this acquisition fifo. The tree provides advanced functions for managing coordinate spaces.
	FrameGrabber	Frame grabber associated with this acquisition fifo.
	NumCameraPorts	Number of physical camera ports available for this acquisition fifo.
	OutputPixelFormat	The desired pixel format for images acquired with this fifo. A conversion will be performed if different from AcquiredPixelFormat.
	Owned1394DCAMParams	Gets a ICogAcq1394DCAM interface for a FIFO if one exists.
	OwnedBrightnessMultiChannelParams	Gets a ICogAcqBrightnessMultiChannel interface for a FIFO if one exists.
	OwnedBrightnessParams	Gets a ICogAcqBrightness interface for a FIFO if one exists.
	OwnedCameraCalibrationParams	Gets a ICogAcqCameraCalibration interface for a FIFO if one exists.
	OwnedChargeTransferIntervalParams	Gets a ICogAcqChargeTransferInterval interface for a FIFO if one exists.
	OwnedContrastMultiChannelParams	Gets a ICogAcqContrastMultiChannel interface for a FIFO if one exists.
	OwnedContrastParams	Gets a ICogAcqContrast interface for a FIFO if one exists.
	OwnedCustomPropertiesParams	Gets a ICogAcqCustomProperties interface for a FIFO if one exists.
	OwnedDigitalCameraGainParams	Gets a ICogAcqDigitalCameraGain interface for a FIFO if one exists.
	OwnedExposureParams	Gets a ICogAcqExposure interface for a FIFO if one exists.
	OwnedFieldCalibrationParams	Gets a ICogAcqFieldCalibration interface for a FIFO if one exists.
	OwnedGenTLBuffersParams	Gets a ICogAcqGenTLBuffers interface for a FIFO if one exists.
	OwnedGigEVisionTransportParams	Gets a ICogAcqGigEVisionTransport interface for a FIFO if one exists.
	OwnedHardwareImagePoolParams	Gets a ICogAcqHardwareImagePool interface for a FIFO if one exists.
	OwnedHorizontalAdjustmentParams	Gets a ICogAcqHorizontalAdjustment interface for a FIFO if one exists.
	OwnedLightParams	Gets a ICogAcqLight interface for a FIFO if one exists.
	OwnedLineScanParams	Gets a ICogAcqLineScan interface for a FIFO if one exists.
	OwnedLookupTableParams	Gets a ICogAcqLookupTable interface for a FIFO if one exists.
	OwnedMasterClockFrequencyParams	Gets a ICogAcqMasterClockFrequency interface for a FIFO if one exists.
	OwnedOffsetClampParams	Gets a ICogAcqOffsetClamp interface for a FIFO if one exists.
	OwnedProfileCameraParams	Gets a ICogAcqProfileCamera interface for a FIFO if one exists.
	OwnedRangeImageParams	Gets a ICogAcqRangeImage interface for a FIFO if one exists.
	OwnedReadoutDirectionParams	Gets a ICogAcqReadoutDirection interface for a FIFO if one exists.
	OwnedROIParams	Gets a ICogAcqROI interface for a FIFO if one exists.
	OwnedSampleParams	Gets a ICogAcqSample interface for a FIFO if one exists.
	OwnedSettlingTimeParams	Gets a ICogAcqSettlingTime interface for a FIFO if one exists.
	OwnedSimultaneousParams	Gets a ICogAcqSimultaneous interface for a FIFO if one exists.
	OwnedStrobeDelayParams	Gets a ICogAcqStrobeDelay interface for a FIFO if one exists.
	OwnedStrobeParams	Gets a ICogAcqStrobe interface for a FIFO if one exists.
	OwnedStrobePulseDurationParams	Gets a ICogAcqStrobePulseDuration interface for a FIFO if one exists.
	OwnedSyncParams	Gets a ICogAcqSync interface for a FIFO if one exists.
	OwnedTriggerFilterParams	Gets a ICogAcqTriggerFilter interface for a FIFO if one exists.
	OwnedTriggerParams	Gets a ICogAcqTrigger interface for a FIFO if one exists.
	OwnedWhiteBalanceParams	Gets a ICogAcqWhiteBalance interface for a FIFO if one exists.
	SelectedSpaceName	Read or set the selected space name that is applied to each image returned from Acquire or CompleteAcquire.
	StateFlags	Returns the complete set of state flags supported on this object. The flags may be indexed by name as shown in the following C# code snippet: if (changedObject.StateFlags["Color"] & eventArgs.StateFlags) { ... } (Inherited from ICogChangedEvent.)
	Timeout	Read or set the timeout in milliseconds used when calling Acquire or CompleteAcquire (typically used for handling the case of triggers that didn't occur).
	TimeoutEnabled	Read or set whether the timeout value is used.
	UserData	Gets a CogDictionary object that can be used to store application-specific information for this acquisition fifo. Internal use only.
	VideoFormat	Video Format associated with this acquisition fifo.

	Name	Description
	Changed	This event is raised when one or more parts of the object's state may have changed. (Inherited from ICogChangedEvent.)
	Complete	Occurs after a FIFO has completed an acquisition, perhaps unsuccessfully. If the acquisition was unsuccessful, Acquire or CompleteAcquire will return an error. The acquisition may have been initiated by a call to Acquire, a call to StartAcquire, or by the acquisition system if you are using auto-trigger mode.
	Flushed	Occurs after an acquisition FIFO is flushed.
	MovePart	Occurs when an acquisition FIFO determines that the camera's field of view can be changed without affecting the acquired image.
	Overrun	Occurs after a FIFO has missed a trigger. This usually means that triggers are coming in too fast to be processed.

Interface for controlling an acquisition FIFO.

To learn how image acquisition works in VisionPro, see Acquisition in VisionPro.

Each acquisition FIFO has additional properties (such as ICogAcqBrightness, ICogAcqContrast, and ICogAcqExposure) implemented as interfaces. To access these interfaces, use the Owned... getters (OwnedBrightnessParams, OwnedContrastParams, OwnedExposureParams).

See How to Change CogAcqFifo Properties for examples of how to obtain an acquisition property interface from a FIFO and how to change it.