/// <summary>
/// This method returns the first available Barcode Scanner. To enumerate and find a particular device use the device enumeration code.
/// </summary>
/// <returns>a boolean value based on whether it found a compatible scanner connected</returns>
private async Task <bool> CreateDefaultScannerObjectAsync(BarcodeScannerInstance instance)
{
BarcodeScanner scanner = null;
scanner = await BarcodeScanner.GetDefaultAsync();
if (scanner == null)
{
UpdateOutput("Scanner not found. Please connect a Barcode Scanner.");
return(false);
}
switch (instance)
{
case BarcodeScannerInstance.Instance1:
scannerInstance1 = scanner;
UpdateOutput("Instance1 Default Barcode Scanner created.");
break;
case BarcodeScannerInstance.Instance2:
scannerInstance2 = scanner;
UpdateOutput("Instance2 Default Barcode Scanner created.");
break;
default:
return(false);
}
return(true);
}
/// <summary>
/// This method returns the first available Barcode Scanner. To enumerate and find a particular device use the device enumeration code.
/// </summary>
/// <returns>a boolean value based on whether it found a compatible scanner connected</returns>
private async Task <bool> CreateDefaultScannerObjectAsync(BarcodeScannerInstance instance)
{
BarcodeScanner scanner = null;
scanner = await DeviceHelpers.GetFirstBarcodeScannerAsync();
if (scanner == null)
{
rootPage.NotifyUser("Barcode scanner not found. Please connect a barcode scanner.", NotifyType.ErrorMessage);
return(false);
}
switch (instance)
{
case BarcodeScannerInstance.Instance1:
barcodeScannerInstance1 = scanner;
break;
case BarcodeScannerInstance.Instance2:
barcodeScannerInstance2 = scanner;
break;
default:
return(false);
}
return(true);
}
/// <summary>
/// This method claims the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to claim the scanner.</returns>
private async Task <bool> ClaimBarcodeScannerAsync(BarcodeScannerInstance instance)
{
bool bClaimAsyncStatus = false;
//select the instance to claim
switch (instance)
{
case BarcodeScannerInstance.Instance1:
claimedBarcodeScannerInstance1 = await scannerInstance1.ClaimScannerAsync();
if (claimedBarcodeScannerInstance1 != null)
{
UpdateOutput("Instance1 Claim Barcode Scanner succeeded.");
bClaimAsyncStatus = true;
}
else
{
UpdateOutput("Instance1 Claim Barcode Scanner failed.");
}
break;
case BarcodeScannerInstance.Instance2:
claimedBarcodeScannerInstance2 = await scannerInstance2.ClaimScannerAsync();
if (claimedBarcodeScannerInstance2 != null)
{
UpdateOutput("Instance2 Claim Barcode Scanner succeeded.");
bClaimAsyncStatus = true;
}
else
{
UpdateOutput("Instance2 Claim Barcode Scanner failed.");
}
break;
default:
return(bClaimAsyncStatus);
}
return(bClaimAsyncStatus);
}
/// <summary>
/// This method enables the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to enable the scanner.</returns>
private async Task <bool> EnableBarcodeScannerAsync(BarcodeScannerInstance instance)
{
switch (instance)
{
case BarcodeScannerInstance.Instance1:
await claimedBarcodeScannerInstance1.EnableAsync();
rootPage.NotifyUser("Instance 1 ready to scan. Device ID: " + claimedBarcodeScannerInstance1.DeviceId, NotifyType.StatusMessage);
break;
case BarcodeScannerInstance.Instance2:
await claimedBarcodeScannerInstance2.EnableAsync();
rootPage.NotifyUser("Instance 2 ready to scan. Device ID: " + claimedBarcodeScannerInstance2.DeviceId, NotifyType.StatusMessage);
break;
default:
return(false);
}
return(true);
}
/// <summary>
/// This method enables the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to enable the scanner.</returns>
private async Task <bool> EnableBarcodeScannerAsync(BarcodeScannerInstance instance)
{
switch (instance)
{
case BarcodeScannerInstance.Instance1:
await claimedBarcodeScannerInstance1.EnableAsync();
UpdateOutput("Instance1 Enable Barcode Scanner succeeded.");
break;
case BarcodeScannerInstance.Instance2:
await claimedBarcodeScannerInstance2.EnableAsync();
UpdateOutput("Instance2 Enable Barcode Scanner succeeded.");
break;
default:
return(false);
}
return(true);
}
/// <summary>
/// This method claims the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to claim the scanner.</returns>
private async Task <bool> ClaimBarcodeScannerAsync(BarcodeScannerInstance instance)
{
bool bClaimAsyncStatus = false;
//select the instance to claim
switch (instance)
{
case BarcodeScannerInstance.Instance1:
claimedBarcodeScannerInstance1 = await barcodeScannerInstance1.ClaimScannerAsync();
if (claimedBarcodeScannerInstance1 == null)
{
rootPage.NotifyUser("Instance 1 claim barcode scanner failed.", NotifyType.ErrorMessage);
}
else
{
bClaimAsyncStatus = true;
}
break;
case BarcodeScannerInstance.Instance2:
claimedBarcodeScannerInstance2 = await barcodeScannerInstance2.ClaimScannerAsync();
if (claimedBarcodeScannerInstance2 == null)
{
rootPage.NotifyUser("Instance 2 claim barcode scanner failed.", NotifyType.ErrorMessage);
}
else
{
bClaimAsyncStatus = true;
}
break;
default:
return(bClaimAsyncStatus);
}
return(bClaimAsyncStatus);
}
/// <summary>
/// Sets the UI elements to a state corresponding to the current active Instance.
/// </summary>
/// <param name="instance">Corresponds to the current active instance</param>
private async void SetUI(BarcodeScannerInstance instance)
{
Instance1Border.BorderBrush = new SolidColorBrush(Colors.Gray);
Instance2Border.BorderBrush = new SolidColorBrush(Colors.Gray);
switch (instance)
{
case BarcodeScannerInstance.Instance1:
await rootPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
ScenarioStartScanningInstance1.IsEnabled = false;
ScenarioStartScanningInstance2.IsEnabled = true;
ScenarioEndScanningInstance1.IsEnabled = true;
ScenarioEndScanningInstance2.IsEnabled = false;
Instance1Border.BorderBrush = new SolidColorBrush(Colors.DarkBlue);
}
);
break;
case BarcodeScannerInstance.Instance2:
await rootPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
ScenarioStartScanningInstance1.IsEnabled = true;
ScenarioStartScanningInstance2.IsEnabled = false;
ScenarioEndScanningInstance1.IsEnabled = false;
ScenarioEndScanningInstance2.IsEnabled = true;
Instance2Border.BorderBrush = new SolidColorBrush(Colors.DarkBlue);
}
);
break;
default:
break;
}
}
/// <summary>
/// Sets the UI elements to a state corresponding to the current active Instance.
/// </summary>
/// <param name="instance">Corresponds to the current active instance</param>
private void SetUI(BarcodeScannerInstance instance)
{
Instance1Border.BorderBrush = new SolidColorBrush(Colors.Gray);
Instance2Border.BorderBrush = new SolidColorBrush(Colors.Gray);
switch (instance)
{
case BarcodeScannerInstance.Instance1:
ScenarioStartScanningInstance1.IsEnabled = false;
ScenarioStartScanningInstance2.IsEnabled = true;
ScenarioEndScanningInstance1.IsEnabled = true;
ScenarioEndScanningInstance2.IsEnabled = false;
Instance1Border.BorderBrush = new SolidColorBrush(Colors.DarkBlue);
break;
case BarcodeScannerInstance.Instance2:
ScenarioStartScanningInstance1.IsEnabled = true;
ScenarioStartScanningInstance2.IsEnabled = false;
ScenarioEndScanningInstance1.IsEnabled = false;
ScenarioEndScanningInstance2.IsEnabled = true;
Instance2Border.BorderBrush = new SolidColorBrush(Colors.DarkBlue);
break;
}
}
/// <summary>
/// Sets the UI elements to a state corresponding to the current active Instance.
/// </summary>
/// <param name="instance">Corresponds to the current active instance</param>
private async void SetUI(BarcodeScannerInstance instance)
{
Instance1Border.BorderBrush = new SolidColorBrush(Colors.Gray);
Instance2Border.BorderBrush = new SolidColorBrush(Colors.Gray);
switch (instance)
{
case BarcodeScannerInstance.Instance1:
await rootPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
ScenarioStartScanningInstance1.IsEnabled = false;
ScenarioStartScanningInstance2.IsEnabled = true;
ScenarioEndScanningInstance1.IsEnabled = true;
ScenarioEndScanningInstance2.IsEnabled = false;
Instance1Border.BorderBrush = new SolidColorBrush(Colors.DarkBlue);
}
);
break;
case BarcodeScannerInstance.Instance2:
await rootPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
ScenarioStartScanningInstance1.IsEnabled = true;
ScenarioStartScanningInstance2.IsEnabled = false;
ScenarioEndScanningInstance1.IsEnabled = false;
ScenarioEndScanningInstance2.IsEnabled = true;
Instance2Border.BorderBrush = new SolidColorBrush(Colors.DarkBlue);
}
);
break;
default:
break;
}
}
/// <summary>
/// This method enables the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to enable the scanner.</returns>
private async Task<bool> EnableBarcodeScannerAsync(BarcodeScannerInstance instance)
{
switch (instance)
{
case BarcodeScannerInstance.Instance1:
await claimedBarcodeScannerInstance1.EnableAsync();
rootPage.NotifyUser("Instance 1 ready to scan. Device ID: " + claimedBarcodeScannerInstance1.DeviceId, NotifyType.StatusMessage);
break;
case BarcodeScannerInstance.Instance2:
await claimedBarcodeScannerInstance2.EnableAsync();
rootPage.NotifyUser("Instance 2 ready to scan. Device ID: " + claimedBarcodeScannerInstance2.DeviceId, NotifyType.StatusMessage);
break;
default:
return false;
}
return true;
}
/// <summary>
/// This method claims the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to claim the scanner.</returns>
private async Task<bool> ClaimBarcodeScannerAsync(BarcodeScannerInstance instance)
{
bool bClaimAsyncStatus = false;
//select the instance to claim
switch (instance)
{
case BarcodeScannerInstance.Instance1:
claimedBarcodeScannerInstance1 = await scannerInstance1.ClaimScannerAsync();
if (claimedBarcodeScannerInstance1 == null)
rootPage.NotifyUser("Instance 1 claim barcode scanner failed.", NotifyType.ErrorMessage);
else
bClaimAsyncStatus = true;
break;
case BarcodeScannerInstance.Instance2:
claimedBarcodeScannerInstance2 = await scannerInstance2.ClaimScannerAsync();
if (claimedBarcodeScannerInstance2 == null)
rootPage.NotifyUser("Instance 2 claim barcode scanner failed.", NotifyType.ErrorMessage);
else
bClaimAsyncStatus = true;
break;
default:
return bClaimAsyncStatus;
}
return bClaimAsyncStatus;
}
/// <summary>
/// This method returns the first available Barcode Scanner. To enumerate and find a particular device use the device enumeration code.
/// </summary>
/// <returns>a boolean value based on whether it found a compatible scanner connected</returns>
private async Task<bool> CreateDefaultScannerObjectAsync(BarcodeScannerInstance instance)
{
BarcodeScanner scanner = null;
scanner = await BarcodeScanner.GetDefaultAsync();
if (scanner == null)
{
rootPage.NotifyUser("Barcode scanner not found. Please connect a barcode scanner.", NotifyType.ErrorMessage);
return false;
}
switch (instance)
{
case BarcodeScannerInstance.Instance1:
scannerInstance1 = scanner;
break;
case BarcodeScannerInstance.Instance2:
scannerInstance2 = scanner;
break;
default:
return false;
}
return true;
}
/// <summary>
/// This method enables the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to enable the scanner.</returns>
private async Task<bool> EnableBarcodeScannerAsync(BarcodeScannerInstance instance)
{
switch (instance)
{
case BarcodeScannerInstance.Instance1:
await claimedBarcodeScannerInstance1.EnableAsync();
UpdateOutput("Instance1 Enable Barcode Scanner succeeded.");
break;
case BarcodeScannerInstance.Instance2:
await claimedBarcodeScannerInstance2.EnableAsync();
UpdateOutput("Instance2 Enable Barcode Scanner succeeded.");
break;
default:
return false;
}
return true;
}
/// <summary>
/// This method claims the connected scanner.
/// </summary>
/// <returns>a boolean based on whether it was able to claim the scanner.</returns>
private async Task<bool> ClaimBarcodeScannerAsync(BarcodeScannerInstance instance)
{
bool bClaimAsyncStatus = false;
//select the instance to claim
switch (instance)
{
case BarcodeScannerInstance.Instance1:
claimedBarcodeScannerInstance1 = await scannerInstance1.ClaimScannerAsync();
if (claimedBarcodeScannerInstance1 != null)
{
UpdateOutput("Instance1 Claim Barcode Scanner succeeded.");
bClaimAsyncStatus = true;
}
else
{
UpdateOutput("Instance1 Claim Barcode Scanner failed.");
}
break;
case BarcodeScannerInstance.Instance2:
claimedBarcodeScannerInstance2 = await scannerInstance2.ClaimScannerAsync();
if (claimedBarcodeScannerInstance2 != null)
{
UpdateOutput("Instance2 Claim Barcode Scanner succeeded.");
bClaimAsyncStatus = true;
}
else
{
UpdateOutput("Instance2 Claim Barcode Scanner failed.");
}
break;
default:
return bClaimAsyncStatus;
}
return bClaimAsyncStatus;
}
/// <summary>
/// This method returns the first available Barcode Scanner. To enumerate and find a particular device use the device enumeration code.
/// </summary>
/// <returns>a boolean value based on whether it found a compatible scanner connected</returns>
private async Task<bool> CreateDefaultScannerObjectAsync(BarcodeScannerInstance instance)
{
BarcodeScanner scanner = null;
scanner = await BarcodeScanner.GetDefaultAsync();
if (scanner == null)
{
UpdateOutput("Scanner not found. Please connect a Barcode Scanner.");
return false;
}
switch (instance)
{
case BarcodeScannerInstance.Instance1:
scannerInstance1 = scanner;
UpdateOutput("Instance1 Default Barcode Scanner created.");
break;
case BarcodeScannerInstance.Instance2:
scannerInstance2 = scanner;
UpdateOutput("Instance2 Default Barcode Scanner created.");
break;
default:
return false;
}
return true;
}
