Xbox Gamebar SDK - Shutdown Windows

Question

Hello, I am making a Widget for Xbox Gamebar to shut down my computer without having to get up from my bed. I have loaded up the SDK and am able to build and deploy the sample widgets. However, when I attempt to use the code:

system("c:\\windows\\system32\\shutdown /s /t 0");

When the button is clicked, the terminal appears and then disappears, not completing my request. Am I using the wrong syntax? Do I need to #include any system libraries? Here is the full code, thanks.

#include "pch.h"
#include "Widget1.h"
#include "Widget1.g.cpp"

using namespace winrt;
using namespace winrt::Windows::UI::Xaml;

namespace winrt::WidgetSample::implementation
{
    Widget1::Widget1()
    {
        InitializeComponent();
    }

    int32_t Widget1::MyProperty()
    {
        throw hresult_not_implemented();
    }

    void Widget1::MyProperty(int32_t /* value */)
    {
        throw hresult_not_implemented();
    }

    void Widget1::MyButton_Click(IInspectable const&, RoutedEventArgs const&)
    {
        myButton().Content(box_value(L"Shutting down!"));
        system("c:\\windows\\system32\\shutdown /s /t 0");
        return;
    }
}

Answer 1

Hi @Austin Hanna ,

Welcome to Microsoft Q&A!

UWP cannot use system to execute the command. UWP contain BeginShutdown method, but it only applicable to IOT device. And it will not work for Win 11, if you do want to shut down device, we suggest you use desktop bridge to make desktop extension for UWP app and shut down computer with command shutdown /s /t 0.

Thank you.

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