emoacht

using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media;

public static class WindowHelper
{
    public static Point PointToScreen(Visual visual, Point point)
    {

emoacht

using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;

public static class WindowHelper
{
    /// <summary>
    /// Moves a specified Window to the center of a monitor where the cursor locates.
    /// </summary>

emoacht

public static class EnumerableExtension
{
    public static IEnumerable<IGrouping<TSource, TSource>> GroupBy<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> keyFinder)
    {
        if (source is null)
            throw new ArgumentNullException(nameof(source));
        if (keyFinder is null)
            throw new ArgumentNullException(nameof(keyFinder));

        TSource key = default;

emoacht

public static class TaskHelper
{
    public static async Task<IEnumerable<TResult>> EnumerateTaskResults<TResult>(IEnumerable<Func<TResult>> source, TimeSpan timeout, CancellationToken cancellationToken)
    {
        var enumerateTasks = source
            .Select(x => Task.Run(() => x.Invoke()))
            .ToArray();

        var timeoutTask = Task.Delay(timeout, cancellationToken);

emoacht

// using System.Windows;
public class TupleTest
{
    public void TupleClipboardTest1()
    {
        (int, string) original = (11, "Eleven");

        Clipboard.SetData(DataFormats.Serializable, original);

        object retrieved = Clipboard.GetData(DataFormats.Serializable);

emoacht

public static class WindowHelper
{
    public static bool GetIsDragEnabled(DependencyObject obj)
    {
        return (bool)obj.GetValue(IsDragEnabledProperty);
    }
    public static void SetIsDragEnabled(DependencyObject obj, bool value)
    {
        obj.SetValue(IsDragEnabledProperty, value);
    }

emoacht

public static class WindowHelper
{
    public static byte[] GetImageData(FrameworkElement element)
    {
        var dpi = VisualTreeHelper.GetDpi(element);

        var rtb = new RenderTargetBitmap(
            (int)(element.ActualWidth * dpi.DpiScaleX),
            (int)(element.ActualHeight * dpi.DpiScaleY),
            dpi.PixelsPerInchX,

emoacht

Add-Type @"
using System;
using System.Runtime.InteropServices;

public static class MonitorHelper
{
  [DllImport("User32.dll")]
  public static extern IntPtr MonitorFromWindow(
    IntPtr hwnd,
    int dwFlags);

emoacht

public static async Task<string[]> ExecuteCommandAsync(string command)
{
    using var p = new Process();
    p.StartInfo = new ProcessStartInfo("cmd.exe")
    {
        CreateNoWindow = true,
        UseShellExecute = false,
        RedirectStandardInput = true,
        RedirectStandardOutput = true
    };

emoacht

<TextBlock>
    <TextBlock.Text>
        <!-- View is bound to View Model which has Version Version property. -->
        <MultiBinding StringFormat="v{0}.{1}">
            <Binding Path="Version.Major"/>
            <Binding Path="Version.Minor"/>
        </MultiBinding>
    </TextBlock.Text>
</TextBlock>