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. |
Camera Controls
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. |
Capture Settings
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. |
Runtime Settings
The following methods are related to customizing runtime settings.
| Method | Description |
|---|---|
| updateRuntimeSettings() | Modify and update the current runtime settings. |
Inherited Methods
The following methods are inherited from the BarcodeReader class.
Yes
No