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c#windowstimezoneuwpiot
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Reputation: 421

Windows 10 Application - iot systemManagement capability

We have Windows 10 application and we are trying to change time zone on the system.

I have found documentation about having IOT extensions included into the project, what would give basic system administration capabilities.

https://msdn.microsoft.com/en-us/windows/uwp/packaging/app-capability-declarations

https://msdn.microsoft.com/en-us/library/windows/apps/windows.system.timezonesettings.changetimezonebydisplayname

So far, I failed to get permission to do anything (reboot system, change time zone etc), always get auth exception.

This is what I have tried:

manifest (important parts):

<Package
  xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
  xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
  xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
  xmlns:iot="http://schemas.microsoft.com/appx/manifest/iot/windows10"
  IgnorableNamespaces="uap mp iot">

<Dependencies>
    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.10586.0" MaxVersionTested="10.0.10586.0" />
    <TargetDeviceFamily Name="Windows.IoT" MinVersion="10.0.10586.0" MaxVersionTested="10.0.10586.0" />
  </Dependencies>

 <Capabilities>
    <iot:Capability Name="systemManagement" />  
  </Capabilities>
</Package>

code:

 Boolean canChange = Windows.System.TimeZoneSettings.CanChangeTimeZone;
 Windows.System.TimeZoneSettings.ChangeTimeZoneByDisplayName("(UTC+13:00) Samoa");

reference to IOT added to project

Upvotes: 1

Views: 1622

Answers (2)

Unknown Person
Unknown Person

Reputation: 13

Old threat but when i search for my solution to this IoT systemManagement manifest i stumble into this. I using VS2017. My fix is View code package manifest manually. Then add this line

<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" 
xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" 
xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4" 
xmlns:iot="http://schemas.microsoft.com/appx/manifest/iot/windows10" IgnorableNamespaces="uap mp uap4 iot">

<Capabilities>
    <iot:Capability Name="systemManagement"/> 
<Capabilities>

*Remember you can only declare 1 Capabilites so if you had declare just add new.

Then add capability in manifest with this code

And plus go to add reference->Extension select Windows IoT Extensions for the UWP version 10.0.10586.0 *even you have newer version must select this to work.

Upvotes: 1

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Reputation: 421

IOT: as Jackie said: "Not sure it'll work out. But the point is IoT extension are only meant for windows IoT devices"

However, I did find a workaround...

If anyone else encounters this problem.

I have run a local lightweight NancyFX web service that has an access to system settings. From an UWP application, I will make api calls and change system settings this way.

see http://nancyfx.org/ and self hosting example

Also, if calling localhost from edge, you will need to setup a loopback app exception, see https://loopback.codeplex.com/ and https://msdn.microsoft.com/en-us/library/windows/apps/hh780593.aspx

Pretty much everything works after that.

Upvotes: 1

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