public void ReleaseScanner()
{
if (_claimedBarcodeScanner != null)
{
_claimedBarcodeScanner.DataReceived -= _claimedBarcodeScanner_DataReceived;
_claimedBarcodeScanner.ReleaseDeviceRequested -= _claimedBarcodeScanner_ReleaseDeviceRequested;
_claimedBarcodeScanner.Dispose();
_claimedBarcodeScanner = null;
}
_barcodeScanner = null;
}
public void ReleaseScanner()
{
if (_claimedBarcodeScanner != null)
{
// Detach the event handlers
_claimedBarcodeScanner.DataReceived -= _claimedBarcodeScanner_DataReceived;
_claimedBarcodeScanner.ReleaseDeviceRequested -= _claimedBarcodeScanner_ReleaseDeviceRequested;
// Release the Barcode Scanner and set to null
_claimedBarcodeScanner.Dispose();
_claimedBarcodeScanner = null;
}
_barcodeScanner = null;
}
/// <summary>
/// Create a barcodescanner object
/// </summary>
/// <returns>true if system has a barcodescanner</returns>
public async Task <bool> CreateScanner()
{
_barcodeScanner = await Windows.Devices.PointOfService.BarcodeScanner.GetDefaultAsync();
if (_barcodeScanner == null)
{
DeviceInformationCollection col = await DeviceInformation.FindAllAsync(Windows.Devices.PointOfService.BarcodeScanner.GetDeviceSelector());
if (col.Count > 0)
{
_barcodeScanner = await Windows.Devices.PointOfService.BarcodeScanner.FromIdAsync(col[0].Id);
}
}
return(_barcodeScanner != null);
}
