QRCodeScanner Class¶
Inherits: FrameFilter
Description¶
QRCodeScanner is used for QRCode recognition.
You need to call attachStreamer to attach a FrameStreamer to QRCodeScanner first, then the images from the FrameStreamer are used for the recognition. You can call start/stop to enable/disable the scan process. start and stop are very lightweight calls.
You can get a Frame by FrameStreamer.peek which contains current camera image and recognized code string.
Constructor¶
- C: void easyar_QRCodeScanner__ctor(easyar_QRCodeScanner * * Return)¶
- C++11: QRCodeScanner()¶
- Traditional C++: QRCodeScanner()¶
- Java: public QRCodeScanner()¶
- Objective-C: + (easyar_QRCodeScanner *) create¶
- Swift (since EasyAR SDK 2.1.0): public convenience init()¶
attachStreamer¶
Attach FrameStreamer to the QRCodeScanner. QRCodeScanner will not scan until a FrameStreamer is attached.
Attach null object will detach previous attached FrameStreamer from QRCodeScanner.
- C: bool easyar_QRCodeScanner_attachStreamer(easyar_QRCodeScanner * This, easyar_FrameStreamer * obj)¶
- Traditional C++: bool attachStreamer(FrameStreamer * obj)¶
- Java: public native boolean attachStreamer(FrameStreamer obj)¶
- Objective-C: - (bool)attachStreamer:(easyar_FrameStreamer *)obj¶
- Swift (since EasyAR SDK 2.1.0): public override func attachStreamer(_ obj: FrameStreamer?) -> Bool¶
start¶
Starts the scan. The scan will not actually start until a FrameStreamer is attached.
- C: bool easyar_QRCodeScanner_start(easyar_QRCodeScanner * This)¶
- C++11: bool start()¶
- Traditional C++: bool start()¶
- Java: public native boolean start()¶
- Objective-C: - (bool)start¶
- Swift (since EasyAR SDK 2.1.0): public override func start() -> Bool¶
stop¶
Stops the scan. Call start to start the scan again.
- C: bool easyar_QRCodeScanner_stop(easyar_QRCodeScanner * This)¶
- C++11: bool stop()¶
- Traditional C++: bool stop()¶
- Java: public native boolean stop()¶
- Objective-C: - (bool)stop¶
- Swift (since EasyAR SDK 2.1.0): public override func stop() -> Bool¶