Class
Barcode
Description
Uses the device's camera to read any bar code types supported by the device.
Methods
Name |
Parameters |
Returns |
Shared |
|---|---|---|---|
image As Picture |
✓ |
||
value As String, Size As Double, type As Barcode.Types = Barcode.Types.QR |
✓ |
||
Events
Name |
Parameters |
Returns |
|---|---|---|
value As String |
||
Enumerations
Barcode.Types
Types
The types of barcodes that can be read.
Name |
|---|
QR |
Bar128 |
Method descriptions
Barcode.FromImage
FromImage(image As Picture) As String()
Returns an array of the unique identifiers from all detected barcodes in the image provided.
This method is shared.
Important
This method is not currently supported for Android.
Barcode.Image
Image(value As String, Size As Double, type As Barcode.Types = Barcode.Types.QR) As Picture
Returns an image with the value encoded as the specified type of barcode.
This method is shared.
Important
This method is not currently supported for Android.
Barcode.StartScan
StartScan
Opens the scanning user interface provided by the device to scan a barcode. The device will auto-detect the type of barcode.
Barcode.StopScan
StopScan
Stops the process of scanning barcodes and closes the scanning user interface on the device.
Important
This method is not currently supported for Android.
Event descriptions
Barcode.ScanCancelled
ScanCancelled
The user canceled the scan.
Barcode.ScanCompleted
ScanCompleted(value As String)
A barcode was successfully scanned. The value is the unique identifier scanned.
Barcode.ScanFailed
ScanFailed
The scan was not able to complete.
Notes
For Android Play Store installs, the Play Store will download and install the barcode library if it was not already installed on the device. For non Play Store-installs, the OS will download the library after it is first used (if it is not already installed). Attempting to scan before the library is installed (which could take several minutes depending on how the OS prioritizes it) will result in the ScanFailed event will be called until it completes.
Compatibility
Desktop, iOS and Android projects types on macOS, Windows, iOS and Android operating systems.
See also
Object parent class