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Windows 11 Version 21H2 - June 2023 Samples Update
 * BluetoothLE: Protect against bad device thumbnails #905 * BarcodeScanner: Add software trigger support to scenario 1 #681 * New: NetworkConnectivity * Archived: BarcodeScanner VB and C++/CX
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‎README.md‎

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@@ -509,21 +509,24 @@ For additional Windows samples, see [Windows on GitHub](http://microsoft.github.
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<tr>
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<td><a href="Samples/Json">JSON</a></td>
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<td><a href="Samples/MobileBroadband">Mobile broadband</a></td>
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<td><a href="Samples/RadioManager">Radios</a></td>
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<td><a href="Samples/NetworkConnectivity">Network connectivity</a></td>
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</tr>
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<tr>
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<td><a href="Samples/RadioManager">Radios</a></td>
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<td><a href="Samples/SocketActivityStreamSocket">Socket activity trigger stream socket</a></td>
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<td><a href="Samples/StreamSocket">StreamSocket</a></td>
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<td><a href="Samples/Syndication">Syndication</a></td>
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</tr>
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<tr>
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<td><a href="Samples/Syndication">Syndication</a></td>
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<td><a href="Samples/UssdProtcol">USSD protocol</a></td>
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<td><a href="Samples/WebSocket">WebSocket</a></td>
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<td><a href="Samples/WiFiDirect">Wi-Fi Direct</a></td>
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</tr>
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<tr>
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<td><a href="Samples/WiFiDirect">Wi-Fi Direct</a></td>
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<td><a href="Samples/WiFiDirectServices">Wi-Fi Direct services</a></td>
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<td><a href="Samples/HotspotAuthentication">Wi-Fi hotspot authentication</a></td>
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</tr>
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<tr>
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<td><a href="Samples/WiFiScan">Wi-Fi scanning</a></td>
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</tr>
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</table>

‎Samples/BarcodeScanner/README.md‎

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@@ -3,8 +3,6 @@ page_type: sample
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languages:
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- csharp
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- cpp
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- cppcx
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- vb
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- cppwinrt
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products:
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- windows
@@ -95,7 +93,7 @@ To obtain information about Microsoft Visual Studio and the tools for developing
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### Related samples
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* [BarcodeScanner sample](/archived/BarcodeScanner/) for JavaScript (archived)
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* [BarcodeScanner sample](/archived/BarcodeScanner/) for JavaScript, Visual Basic, and C++/CX (archived)
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## System requirements
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‎Samples/BarcodeScanner/cppwinrt/Scenario1_BasicFunctionality.cpp‎

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@@ -66,6 +66,7 @@ namespace winrt::SDKTemplate::implementation
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// reset the button state
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ScenarioEndScanButton().IsEnabled(false);
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ScenarioStartScanButton().IsEnabled(true);
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ScenarioSoftwareTriggerPanel().Visibility(Visibility::Collapsed);
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}
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}
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@@ -102,6 +103,14 @@ namespace winrt::SDKTemplate::implementation
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m_rootPage.NotifyUser(L"Ready to scan. Device ID: " + m_scanner.DeviceId(), NotifyType::StatusMessage);
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ScenarioEndScanButton().IsEnabled(true);
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// If the scanner is a software scanner, show the software trigger buttons.
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if (!m_scanner.VideoDeviceId().empty())
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{
110+
ScenarioSoftwareTriggerPanel().Visibility(Visibility::Visible);
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ScenarioStartTriggerButton().IsEnabled(true);
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ScenarioStopTriggerButton().IsEnabled(false);
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}
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}
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else
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{
@@ -149,4 +158,18 @@ namespace winrt::SDKTemplate::implementation
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{
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ResetTheScenarioState();
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}
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fire_and_forget Scenario1_BasicFunctionality::ScenarioStartTriggerButton_Click(IInspectable const&, RoutedEventArgs const&)
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{
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ScenarioStartTriggerButton().IsEnabled(false);
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co_await m_claimedScanner.StartSoftwareTriggerAsync();
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ScenarioStopTriggerButton().IsEnabled(true);
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}
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fire_and_forget Scenario1_BasicFunctionality::ScenarioStopTriggerButton_Click(IInspectable const&, RoutedEventArgs const&)
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{
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ScenarioStopTriggerButton().IsEnabled(false);
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co_await m_claimedScanner.StopSoftwareTriggerAsync();
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ScenarioStartTriggerButton().IsEnabled(true);
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}
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}

‎Samples/BarcodeScanner/cppwinrt/Scenario1_BasicFunctionality.h‎

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@@ -21,6 +21,8 @@ namespace winrt::SDKTemplate::implementation
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fire_and_forget ScenarioStartScanButton_Click(Windows::Foundation::IInspectable const& sender, Windows::UI::Xaml::RoutedEventArgs const& e);
2323
void ScenarioEndScanButton_Click(Windows::Foundation::IInspectable const& sender, Windows::UI::Xaml::RoutedEventArgs const& e);
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fire_and_forget ScenarioStartTriggerButton_Click(Windows::Foundation::IInspectable const& sender, Windows::UI::Xaml::RoutedEventArgs const& e);
25+
fire_and_forget ScenarioStopTriggerButton_Click(Windows::Foundation::IInspectable const& sender, Windows::UI::Xaml::RoutedEventArgs const& e);
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2527
void OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs const& e);
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void OnNavigatedFrom(Windows::UI::Xaml::Navigation::NavigationEventArgs const& e);

‎Samples/BarcodeScanner/cs/Scenario1_BasicFunctionality.xaml.cs‎

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Original file line numberDiff line numberDiff line change
@@ -95,6 +95,14 @@ private async void ScenarioStartScanButton_Click(object sender, RoutedEventArgs
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rootPage.NotifyUser("Ready to scan. Device ID: " + claimedScanner.DeviceId, NotifyType.StatusMessage);
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ScenarioEndScanButton.IsEnabled = true;
98+
99+
// If the scanner is a software scanner, show the software trigger buttons.
100+
if (!string.IsNullOrEmpty(scanner.VideoDeviceId))
101+
{
102+
ScenarioSoftwareTriggerPanel.Visibility = Visibility.Visible;
103+
ScenarioStartTriggerButton.IsEnabled = true;
104+
ScenarioStopTriggerButton.IsEnabled = false;
105+
}
98106
}
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else
100108
{
@@ -172,6 +180,7 @@ private void ResetTheScenarioState()
172180
// reset the button state
173181
ScenarioEndScanButton.IsEnabled = false;
174182
ScenarioStartScanButton.IsEnabled = true;
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ScenarioSoftwareTriggerPanel.Visibility = Visibility.Collapsed;
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}
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}
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@@ -187,5 +196,26 @@ private void ScenarioEndScanButton_Click(object sender, RoutedEventArgs e)
187196
this.ResetTheScenarioState();
188197
}
189198

199+
/// <summary>
200+
/// Event handler for Start Software Trigger button click.
201+
/// Presses the software trigger button.
202+
/// </summary>
203+
private async void ScenarioStartTriggerButton_Click(object sender, RoutedEventArgs e)
204+
{
205+
ScenarioStartTriggerButton.IsEnabled = false;
206+
await claimedScanner.StartSoftwareTriggerAsync();
207+
ScenarioStopTriggerButton.IsEnabled = true;
208+
}
209+
210+
/// <summary>
211+
/// Event handler for Stop Software Trigger button click.
212+
/// Releases the software trigger button.
213+
/// </summary>
214+
private async void ScenarioStopTriggerButton_Click(object sender, RoutedEventArgs e)
215+
{
216+
ScenarioStopTriggerButton.IsEnabled = false;
217+
await claimedScanner.StopSoftwareTriggerAsync();
218+
ScenarioStartTriggerButton.IsEnabled = true;
219+
}
190220
}
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}

‎Samples/BarcodeScanner/shared/Scenario1_BasicFunctionality.xaml‎

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@@ -22,6 +22,7 @@
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<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
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<Grid x:Name="RootGrid" Margin="12,20,12,12">
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<Grid.RowDefinitions>
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<RowDefinition Height="*"/>
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<RowDefinition Height="*"/>
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<RowDefinition Height="Auto"/>
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</Grid.RowDefinitions>
@@ -40,7 +41,13 @@
4041
<Button x:Name="ScenarioEndScanButton" Content="End Scanning" Margin="0,0,10,0" Click="ScenarioEndScanButton_Click"/>
4142
</StackPanel>
4243

43-
<Grid Grid.Row="2" Margin="0,0,0,20">
44+
<StackPanel x:Name="ScenarioSoftwareTriggerPanel" Orientation="Horizontal" Margin="5,5,5,20" Visibility="Collapsed" Grid.Row="2">
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<Button x:Name="ScenarioStartTriggerButton" Content="Start Software Trigger" Margin="0,0,10,0" Click="ScenarioStartTriggerButton_Click"/>
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<Button x:Name="ScenarioStopTriggerButton" Content="Stop Software Trigger" Margin="0,0,10,0" Click="ScenarioStopTriggerButton_Click"/>
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</StackPanel>
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<Grid Grid.Row="3" Margin="0,0,0,20">
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<Grid.ColumnDefinitions>
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<ColumnDefinition Width="Auto"/>
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<ColumnDefinition Width="200"/>
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</Grid>
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</StackPanel>
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</ScrollViewer>
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<!-- Status Block for providing messages to the user. Use the
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NotifyUser() method to populate the message -->
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<Border x:Name="ErrorBorder" Background="Red" Grid.Row="1"/>
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<TextBlock x:Name="StatusBlock" Grid.Row="1" Margin="12, 10, 12, 10" Visibility="Collapsed"/>
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</Grid>
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</Grid>
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</Page>

‎Samples/BluetoothLE/cppwinrt/BluetoothLEDeviceDisplay.cpp‎

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#include "pch.h"
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#include "pch.h"
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#include "BluetoothLEDeviceDisplay.h"
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#include "BluetoothLEDeviceDisplay.g.cpp"
44

@@ -55,9 +55,16 @@ namespace winrt::SDKTemplate::implementation
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fire_and_forget BluetoothLEDeviceDisplay::UpdateGlyphBitmapImage()
5656
{
5757
auto lifetime = get_strong();
58-
DeviceThumbnail deviceThumbnail = co_await m_deviceInformation.GetGlyphThumbnailAsync();
5958
BitmapImage glyphBitmapImage;
60-
co_await glyphBitmapImage.SetSourceAsync(deviceThumbnail);
59+
try
60+
{
61+
DeviceThumbnail deviceThumbnail = co_await m_deviceInformation.GetGlyphThumbnailAsync();
62+
co_await glyphBitmapImage.SetSourceAsync(deviceThumbnail);
63+
}
64+
catch (...)
65+
{
66+
// Something went wrong getting or decoding the device glyph.
67+
}
6168
m_glyphBitmapImage = glyphBitmapImage;
6269
OnPropertyChanged(L"GlyphBitmapImage");
6370
}

‎Samples/BluetoothLE/cs/DisplayHelpers.cs‎

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using System;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using Windows.Devices.Bluetooth.GenericAttributeProfile;
@@ -115,9 +115,16 @@ public void Update(DeviceInformationUpdate deviceInfoUpdate)
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116116
private async void UpdateGlyphBitmapImage()
117117
{
118-
DeviceThumbnail deviceThumbnail = await DeviceInformation.GetGlyphThumbnailAsync();
119118
var glyphBitmapImage = new BitmapImage();
120-
await glyphBitmapImage.SetSourceAsync(deviceThumbnail);
119+
try
120+
{
121+
DeviceThumbnail deviceThumbnail = await DeviceInformation.GetGlyphThumbnailAsync();
122+
await glyphBitmapImage.SetSourceAsync(deviceThumbnail);
123+
}
124+
catch (Exception)
125+
{
126+
// Something went wrong getting or decoding the device glyph.
127+
}
121128
GlyphBitmapImage = glyphBitmapImage;
122129
OnPropertyChanged("GlyphBitmapImage");
123130
}
@@ -317,4 +324,4 @@ public static byte[] ReadBufferToBytes(IBuffer buffer)
317324
return data;
318325
}
319326
}
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}
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}

‎Samples/NetworkConnectivity/README.md‎

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---
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page_type: sample
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languages:
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- csharp
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- cpp
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- cppwinrt
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products:
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- windows
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- windows-uwp
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urlFragment: NetworkingConnectivity
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extendedZipContent:
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- path: SharedContent
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target: SharedContent
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- path: LICENSE
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target: LICENSE
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description: "Shows how to query network connectivity and respond to network connectivity changes."
17+
---
18+
19+
# NetworkingConnectivity sample
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21+
Demonstrates how to use the NetworkInformation and related classes
22+
to determine the network connectivity status,
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and shows how to use this information to determine
24+
when to attempt to connect to the Internet.
25+
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Apps can use the NetworkInformation and related Windows Runtime classes
27+
to check the network connectivity status before attempting to connect to the Internet.
28+
These class simplify the complex task of determining connectivity for various network configurations.
29+
These checks are not strictly required because higher-level APIs (such as HttpClient)
30+
report insufficient network connectivity through failures/results at the point of connection.
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This sample also demonstrates how to register for network connectivity change events.
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Apps can subscribe to the events instead of building their
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own logic to track network connectivity changes.
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> **Note:** This sample is part of a large collection of UWP feature samples.
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> You can download this sample as a standalone ZIP file
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> [from docs.microsoft.com](https://docs.microsoft.com/samples/microsoft/windows-universal-samples/networkingconnectivity/),
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> or you can download the entire collection as a single
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> [ZIP file](https://github.com/Microsoft/Windows-universal-samples/archive/main.zip), but be
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> sure to unzip everything to access shared dependencies. For more info on working with the ZIP file,
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> the samples collection, and GitHub, see [Get the UWP samples from GitHub](https://aka.ms/ovu2uq).
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> For more samples, see the [Samples portal](https://aka.ms/winsamples) on the Windows Dev Center.
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### Declaring the internetClient capability
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This sample requires that internetClient capability be set in the *Package.appxmanifest* file to allow the app to access the Internet connection at runtime.
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The capability can be set in the app manifest using Microsoft Visual Studio.
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## System requirements
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* Windows 10
54+
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## Build the sample
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57+
1. If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.
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2. Start Microsoft Visual Studio and select **File** \> **Open** \> **Project/Solution**.
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3. Starting in the folder where you unzipped the samples, go to the Samples subfolder, then the subfolder for this specific sample, then the subfolder for your preferred language (C++, C#, or JavaScript). Double-click the Visual Studio Solution (.sln) file.
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4. Press Ctrl+Shift+B or select **Build** \> **Build Solution**.
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## Run the sample
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64+
The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.
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### Deploying the sample
67+
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- Select Build > Deploy Solution.
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### Debugging and running the sample
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- To debug the sample and then run it, press F5 or select Debug > Start Debugging. To run the sample without debugging, press Ctrl+F5 or select Debug > Start Without Debugging.

‎Samples/NetworkConnectivity/cppwinrt/NetworkConnectivity.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.5.33516.290
5+
MinimumVisualStudioVersion = 10.0.40219.1
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "NetworkConnectivity", "NetworkConnectivity.vcxproj", "{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}"
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EndProject
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Global
9+
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|ARM64 = Debug|ARM64
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Debug|x64 = Debug|x64
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Debug|x86 = Debug|x86
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Release|ARM64 = Release|ARM64
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Release|x64 = Release|x64
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Release|x86 = Release|x86
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|ARM64.ActiveCfg = Debug|ARM64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|ARM64.Build.0 = Debug|ARM64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|ARM64.Deploy.0 = Debug|ARM64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|x64.ActiveCfg = Debug|x64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|x64.Build.0 = Debug|x64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|x64.Deploy.0 = Debug|x64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|x86.ActiveCfg = Debug|Win32
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|x86.Build.0 = Debug|Win32
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Debug|x86.Deploy.0 = Debug|Win32
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|ARM64.ActiveCfg = Release|ARM64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|ARM64.Build.0 = Release|ARM64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|ARM64.Deploy.0 = Release|ARM64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|x64.ActiveCfg = Release|x64
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|x64.Build.0 = Release|x64
32+
{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|x64.Deploy.0 = Release|x64
33+
{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|x86.ActiveCfg = Release|Win32
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|x86.Build.0 = Release|Win32
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{21C18BA0-582C-4264-B0DD-7F2867D8E3D6}.Release|x86.Deploy.0 = Release|Win32
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EndGlobalSection
37+
GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {77D722D2-6DBF-402D-9B3B-6473BA169D27}
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EndGlobalSection
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EndGlobal

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