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Dynamsoft Barcode Reader SDK - Javascript BarcodeScanner Methods

The BarcodeScanner class is used for video decoding.

Initialize and Destroy

The following methods are related to initializing and destroying the BarcodeScanner object.

Method	Description
`createInstance`	Create a `BarcodeScanner` object.
`destroy`	Destroy the `BarcodeScanner` object.
`getUIElement`	Get HTML element containing the `BarcodeScanner` object.
`setUIElement`	Set html element containing the `BarcodeScanner` object.

The following methods are related to controlling the camera and its settings.

Method	Description
`getAllCameras`	Get information of all available cameras on the device.
`getCurrentCamera`	Get information about the currently used camera.
`setCurrentCamera`	Set camera by its information or device ID.
`hide`	Stop the camera and hide the camera UI element.
`show`	Show the camera UI element, open the camera, and start decoding.
`close`	Close and release the camera.
`isOpen`	Check if the camera is open.
`open`	Open the camera.
`pause`	Pause the video stream.
`play`	Continue the video stream.
`stop`	Stop the video and release the camera.
`pauseScan`	Pause the video decoding process.
`resumeScan`	Resume the video decoding process.

The following methods are related to the camera’s capture settings.

Method	Description
`getCapabilities`	Get the camera capabilities.
`getResolution`	Get current video resolution.
`setResolution`	Set current video resolution.
`getScanSettings`	Get current scan settings.
`updateScanSettings`	Modify and update scan settings.
`getVideoSettings`	Get current video settings.
`updateVideoSettings`	Modify and update video settings.
`setColorTemperature`	Adjust the video colour temperature.
`setExposureCompensation`	Adjust the video exposure level.
`setFrameRate`	Adjust the video frame rate.
`setZoom`	Adjust the video zoom ratio.
`turnOffTorch`	Turn off the torch/flashlight.
`turnOnTorch`	Turn on the torch/flashlight.

The following methods are related to customizing runtime settings.

Method	Description
`updateRuntimeSettings`	Modify and update the current runtime settings.

The following methods are inherited from the BarcodeReader class.