IndexedStream Class Reference

A stream with a finite number of images, which can also be accessed via an ImageIndex. More...

Inherits Stream.

Protected Member Functions
override void	ObservableAcquisitionLoop ()
	Special implementation taking LoopObservers into account.
Protected Member Functions inherited from Stream
virtual void	Dispose (bool disposing)
	IDispose helper function.
StreamImage	MakeStreamImage (IntPtr handle)
	Factory function for creating the returned image from the acquisition engine.
StreamImage	MakeSnapshotImage (IntPtr handle)
	Factory function for creating the returned image from the acquisition engine.
void	SendCompleteToObservers ()
	Calls IObserver<T>.OnCompleted on all subscribed observers.
void	SendErrorToObservers (Exception error)
	Calls IObserver<T>.OnError(Exception) on all subscribed observers.
void	SendImageToObservers (StreamImage image)
	Calls IObserver<T>.OnNext(T) with the given image .

Properties
override bool	IsIndexed [get]
	Gets whether this is a IndexedStream.
int	ImageCount [get]
	Gets the number of images contained in this stream.
int	ImageIndex [get, set]
	Gets or sets the index of the current active image.
bool	LoopObservers [get, set]
	Gets or sets whether the Stream.Subscribe(IObserver<StreamImage>)d observers are notified after all images have been delivered once.
Properties inherited from Stream
AcquisitionInterface	AcquisitionInterface [get, set]
	Gets or sets the acquisition interface to use on this stream.
Device	Parent [get]
	Gets the parent Device.
virtual bool	IsIndexed [get]
	Gets whether this stream is an IndexedStream.
StreamStatistics	Statistics [get]
	Gets the available device statistics.
bool	IsRunning [get]
	Gets whether the acquisition is currently active.
IRingBuffer	RingBuffer [get]
	Gets the IRingBuffer interface object if present.

Additional Inherited Members
Public Member Functions inherited from Stream
void	Dispose ()
	IDisposable implementation.
virtual StreamImage	GetSnapshot ()
	Acquires a single image and returns it.
virtual StreamImage	GetTimedSnapshot (UsTimeSpan timeSpan)
	Acquires a single image and returns it.
virtual StreamImage	GetTimedSnapshot (UsTimeSpan timeSpan, out WaitStatus status)
	As GetTimedSnapshot(UsTimeSpan), but does not throw on timeout.
void	Start ()
	Starts the acquisition.
virtual StreamImage	Wait ()
	Waits indefinitely for the next acquired image and returns it.
virtual StreamImage	Wait (out WaitStatus status)
	Waits indefinitely for the next acquired image and returns it.
virtual StreamImage	WaitFor (UsTimeSpan timeSpan)
	Waits for the given timeSpan for the next acquired image.
virtual StreamImage	WaitFor (UsTimeSpan timeSpan, out WaitStatus status)
	As WaitFor(UsTimeSpan), but does not throw on timeout.
void	Stop ()
	Stops the acquisition.
virtual bool	TryStop ()
	Tries to stop the acquisition of images.
void	Abort ()
	Stops the acquisition of images immediately.
virtual bool	TryAbort ()
	Tries to stop the acquisition of images immediately.
virtual IDisposable	Subscribe (IObserver< StreamImage > observer)
	Notifies this stream that the given observer is to receive new image notifications.
Static Public Attributes inherited from Stream
static readonly UsTimeSpan	MaxTimeoutValue = UsTimeSpan.FromMilliseconds(int.MaxValue)
	Gets the maximal timeout a device normally supports.

Detailed Description

A stream with a finite number of images, which can also be accessed via an ImageIndex.

Property Documentation

ImageIndex

int ImageIndex

getsetabstract

Gets or sets the index of the current active image.

The range of possible values is from 0 up to, not including, ImageCount.

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IsIndexed

override bool IsIndexed

getsealed

Gets whether this is a IndexedStream.

Always true.

Implements IStream.

LoopObservers

bool LoopObservers

getset

Gets or sets whether the Stream.Subscribe(IObserver<StreamImage>)d observers are notified after all images have been delivered once.

If true this stream behaves like a non-indexed stream and repeats playback. If false IObserver<T>.OnCompleted called after the first iteration and acquisition is stopped.

Default is false.