C# 클래스 AForge.Video.ScreenCaptureStream

Screen capture video source.

The video source constantly captures the desktop screen.

Sample usage:

 // get entire desktop area size Rectangle screenArea = Rectangle.Empty; foreach ( System.Windows.Forms.Screen screen in  System.Windows.Forms.Screen.AllScreens ) { screenArea = Rectangle.Union( screenArea, screen.Bounds ); } // create screen capture video source ScreenCaptureStream stream = new ScreenCaptureStream( screenArea ); // set NewFrame event handler stream.NewFrame += new NewFrameEventHandler( video_NewFrame ); // start the video source stream.Start( ); // ... // signal to stop stream.SignalToStop( ); // ... private void video_NewFrame( object sender, NewFrameEventArgs eventArgs ) { // get new frame Bitmap bitmap = eventArgs.Frame; // process the frame }

상속: IVideoSource

파일 보기 프로젝트 열기: holisticware-admin/MonoVersal.AForgeNET 1 사용 예제들

공개 메소드들

메소드	설명
ScreenCaptureStream ( System region ) : System	Initializes a new instance of the ScreenCaptureStream class.
ScreenCaptureStream ( System region, int frameInterval ) : System	Initializes a new instance of the ScreenCaptureStream class.
SignalToStop ( ) : void	Signal video source to stop its work. Signals video source to stop its background thread, stop to provide new frames and free resources.
Start ( ) : void	Start video source. Starts video source and return execution to caller. Video source object creates background thread and notifies about new frames with the help of NewFrame event.
Stop ( ) : void	Stop video source. Stops video source aborting its thread. Since the method aborts background thread, its usage is highly not preferred and should be done only if there are no other options. The correct way of stopping camera is signaling it stop and then waiting for background thread's completion.
WaitForStop ( ) : void	Wait for video source has stopped. Waits for source stopping after it was signalled to stop using SignalToStop method.

비공개 메소드들

메소드	설명
Free ( ) : void	Free resource.
WorkerThread ( ) : void

메소드 상세

ScreenCaptureStream() 공개 메소드

Initializes a new instance of the ScreenCaptureStream class.

public ScreenCaptureStream ( System region ) : System
region	System	Screen's rectangle to capture (the rectangle may cover multiple displays).
리턴	System

ScreenCaptureStream() 공개 메소드

Initializes a new instance of the ScreenCaptureStream class.

public ScreenCaptureStream ( System region, int frameInterval ) : System
region	System	Screen's rectangle to capture (the rectangle may cover multiple displays).
frameInterval	int	Time interval between making screen shots, ms.
리턴	System

SignalToStop() 공개 메소드

Signal video source to stop its work.

Signals video source to stop its background thread, stop to provide new frames and free resources.

public SignalToStop ( ) : void
리턴	void

Start() 공개 메소드

Start video source.

Starts video source and return execution to caller. Video source object creates background thread and notifies about new frames with the help of NewFrame event.

Video source is not specified.

public Start ( ) : void
리턴	void

Stop() 공개 메소드

Stop video source.

Stops video source aborting its thread.

Since the method aborts background thread, its usage is highly not preferred and should be done only if there are no other options. The correct way of stopping camera is signaling it stop and then waiting for background thread's completion.

public Stop ( ) : void
리턴	void

WaitForStop() 공개 메소드

Wait for video source has stopped.

Waits for source stopping after it was signalled to stop using SignalToStop method.

public WaitForStop ( ) : void
리턴	void