Sys

This page is about the Sys class available in PeyrSharp.Env. You can find here all of its methods and properties.

INFO

This class is static.

Compatibility

The Sys class is part of the PeyrSharp.Env module, and is compatible with all of these frameworks and platforms:

Package/Platform	Windows	macOS	Linux + others
Env	✅	⚠️	⚠️
Framework	.NET 6	.NET 7	.NET 8
Env	✅	✅	✅

WARNING

Some methods, classes or features of PeyrSharp.Env might not be available in all platforms.

Methods

ExecuteAsAdmin(process)

Definition

Executes a program in administrator mode.

WARNING

This method only works on Windows.

Arguments

Type	Name	Meaning
Process	process	The process to launch as admin.

Usage

using PeyrSharp.Env;

// Define a process
Process p = new();
p.StartInfo.FileName = "notepad.exe";

Sys.ExecuteAsAdmin(p);

ExecuteAsAdmin(fileName)

Definition

Executes a program in administrator mode.

WARNING

This method only works on Windows.

Arguments

Type	Name	Meaning
string	fileName	The path to the program to launch in admin mode.

Usage

using PeyrSharp.Env;

Sys.ExecuteAsAdmin("notepad.exe");

LaunchUWPApp(packageFamilyName, applicationID)

Definition

This method allows you to launch an UWP app from its PackageFamilyName and its Application Id. You can find this information by running in Windows Powershell (admin) the following command:

Get-AppxPackage | Select PackageFamilyName, InstallLocation

You can find the Application Id in the AppxManifest.xml file in

InstallLocation\AppxManifest.xml

WARNING

This method only works on Windows.

Arguments

Type	Name	Meaning
string	packageFamilyName	The PackageFamilyName property.
string	applicationID	The Application Id property in the UWP AppxManifest.xml file.

Usage

using PeyrSharp.Env;

Sys.LaunchUWPApp("Microsoft.MinecraftUWP_8wekyb3d8bbwe", "App"); // Launch Minecraft UWP

LaunchUWPApp(uwpApp)

Definition

Launches a UWP application using information from a UwpApp object.

WARNING

This method only works on Windows.

Arguments

Type	Name	Meaning
UwpApp	uwpApp	The UWP application to launch.

Usage

using PeyrSharp.Env;
Sys.LaunchUWPApp(myApp);

IsProcessRunning(processName)

Definition

Gets if a specified process name is currently running. Returns a bool value indicating whether the process is running (true) or not running (false).

Arguments

Type	Name	Meaning
string	processName	The process name to find.

Usage

using PeyrSharp.Env;

bool isNotepadRunning = Sys.IsProcessRunning("notepad");

TerminateProcess(processId)

Definition

Terminates a process with the specified process ID. Returns True if the process was successfully terminated, or False if no such process was found or if an error occurred while trying to terminate the process.

Arguments

Type	Name	Meaning
int	processId	The ID of the process to terminate.

Usage

using PeyrSharp.Env;

int processId = 12345;

bool result = Sys.TerminateProcess(processId);

GetUwpAppsAsync()

Definition

Retrieves a list of UWP (Universal Windows Platform) apps asynchronously. Returns a task that represents the asynchronous operation. The task result contains a list of UwpApp objects representing the UWP apps.

WARNING

This method only works on Windows 10 and higher.

This method retrieves a list of UWP apps on the system using PowerShell. It saves the app information in a JSON file and then reads the file to deserialize it into a list of UwpApp objects. The list is then sorted alphabetically based on the app names before being returned.

This is the PowerShell command that is called:

Get-StartApps | ConvertTo-Json > $env:appdata\UwpApps.json

Usage

using PeyrSharp.Env;

internal static async void Main()
{
    List<UwpApp> appsList = await Sys.GetUwpAppsAsync();
}

Properties

CurrentOperatingSystem

Definition

public static OperatingSystems CurrentOperatingSystem { get; }

Gets the current Operating system. Returns a OperatingSystems value. You can only get this property.

Usage

using PeyrSharp.Env;

if (Sys.CurrentOperatingSystem == OperatingSystems.Windows)
{
    Console.WriteLine("You are on Windows");
}

CurrentWindowsVersion

Definition

public static WindowsVersion CurrentWindowsVersion { get; }

Gets the current Windows version. Returns a WindowsVersion value. You can only get this property.

WARNING

This property only works on Windows.

DANGER

This property only works if you specify in the Application Manifest, in the compatibility section, that Windows 8, 8.1 and 10/11 are compatible with the software. Otherwise, it will return Windows8.

<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
    <application>
      <!-- Windows Vista -->
      <!--<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />-->

      <!-- Windows 7 -->
      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />

      <!-- Windows 8 -->
      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />

      <!-- Windows 8.1 -->
      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />

      <!-- Windows 10 -->
      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
    </application>
</compatibility>

Usage

using PeyrSharp.Env;

if (Sys.CurrentWindowsVersion == WindowsVersion.Windows11)
{
    Console.WriteLine("You are on Windows 11");
}

IsDarkThemeSupported

Definition

public static bool IsDarkThemeSupported { get; }

Gets if the current Windows version supports dark theme. Returns a bool value. You can only get this property.

WARNING

This property only works on Windows.

Usage

using PeyrSharp.Env;

if (Sys.IsDarkThemeSupported)
{
    Console.WriteLine("You are running Windows 10 or higher.");
}

CurrentTheme

Definition

[SupportedOSPlatform("windows")]
public static SystemThemes CurrentTheme { get; }

Gets the current theme. Returns a SystemThemes value. You can only get this property.

WARNING

This property only works on Windows 10/11.

Usage

using Microsoft.Win32;
using PeyrSharp.Env;

if (Sys.CurrentTheme == SystemThemes.Light)
{
    Console.WriteLine("The current theme is light.");
}
else if (Sys.CurrentTheme == SystemThemes.Dark)
{
    Console.WriteLine("The current theme is dark.");
}
else
{
    Console.WriteLine("The current theme is unknown."); // Might happen on other versions than Windows 10/11
}

RunningProcesses

Definition

public static Process[] RunningProcesses { get; }

Gets the processes that are currently running. Returns a Process[] array. You can only get this property.

Usage

using PeyrSharp.Env;

Process[] procs = Sys.RunningProcesses;

for (int i = 0; i < procs.Length; i++)
{
    Console.WriteLine(procs[i].ProcessName); // Print the name of all running processes
}

RunningProcessesNames

Definition

public static string[] RunningProcessesNames { get; }

Gets the names of the processes that are currently running. Returns a string[] array. You can only get this property.

Usage

using PeyrSharp.Env;

string[] procs = Sys.RunningProcessesNames;

for (int i = 0; i < procs.Length; i++)
{
    Console.WriteLine(procs[i]); // Print the name of all running processes
}

UnixTime

Definition

public static int Unix { get; }

Gets the current UnixTime. Returns an int. You can only get this property.

Usage

using PeyrSharp.Env;

int unixTime = Sys.UnixTime;