Winify – Rev 8
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Win32;
namespace Winify.Utilities
{
public static class Miscellaneous
{
#region Public Methods
public static TimeSpan GetIdleTime()
{
var lastInPut = new Natives.LASTINPUTINFO();
lastInPut.cbSize = (uint) Marshal.SizeOf(lastInPut);
Natives.GetLastInputInfo(ref lastInPut);
return TimeSpan.FromMilliseconds((uint) Environment.TickCount - lastInPut.dwTime);
}
public static bool LaunchOnBootSet(bool enable)
{
using (var key = Registry.CurrentUser.OpenSubKey
("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true))
{
if (key == null)
{
return false;
}
switch (enable)
{
case true:
key.SetValue(Constants.AssemblyName, Assembly.GetEntryAssembly().Location);
break;
default:
key.DeleteValue(Constants.AssemblyName, false);
break;
}
}
return true;
}
public static bool LaunchOnBootGet()
{
using (var key = Registry.CurrentUser.OpenSubKey
("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true))
{
return key?.GetValue(Constants.AssemblyName) != null;
}
}
/// <summary>
/// Enable double buffering for an arbitrary control.
/// </summary>
/// <param name="control">the control to enable double buffering for</param>
/// <returns>true on success</returns>
/// <remarks>Do not enable double buffering on RDP: https://devblogs.microsoft.com/oldnewthing/20060103-12/?p=32793</remarks>
public static bool SetDoubleBuffered(this Control control)
{
if (SystemInformation.TerminalServerSession)
{
return false;
}
var dgvType = control.GetType();
var pi = dgvType.GetProperty("DoubleBuffered",
BindingFlags.Instance | BindingFlags.NonPublic);
if (pi == null)
{
return false;
}
pi.SetValue(control, true, null);
return true;
}
public static async Task<Icon> CreateIconFromResource(string resource)
{
var iconBytes = await LoadResource(resource);
using (var iconMemoryStream = new MemoryStream(iconBytes))
{
var bitmap = (Bitmap) Image.FromStream(iconMemoryStream);
var bitmapIntPtr = bitmap.GetHicon();
var icon = Icon.FromHandle(bitmapIntPtr);
return icon;
}
}
public static async Task<byte[]> LoadResource(string resource)
{
var assembly = Assembly.GetExecutingAssembly();
using (var manifestResourceStream = assembly.GetManifestResourceStream(resource))
{
if (manifestResourceStream == null)
{
return null;
}
var memoryStream = new MemoryStream();
await manifestResourceStream.CopyToAsync(memoryStream);
memoryStream.Position = 0L;
return memoryStream.ToArray();
}
}
public static void InvokeIfRequired<T>(this T control, Action<T> action) where T : Control
{
if (control.InvokeRequired)
{
control.BeginInvoke((MethodInvoker) delegate { action(control); });
return;
}
action(control);
}
public static T MapValueToRange<T>(this T value, T xMin, T xMax, T yMin, T yMax)
where T : struct, IComparable<T>, IConvertible
{
return (dynamic) yMin +
((dynamic) yMax - (dynamic) yMin) * ((dynamic) value - (dynamic) xMin) /
((dynamic) xMax - (dynamic) xMin);
}
public static IEnumerable<TU> SequenceSubtract<TU, TV>(this IEnumerable<TU> a,
IEnumerable<TV> b,
Func<TU, TV, bool> cmp)
{
var eb = new List<TV>(b);
using (var ea = a.GetEnumerator())
{
while (ea.MoveNext())
{
if (ea.Current == null)
{
continue;
}
foreach (var ib in eb)
{
if (cmp.Invoke(ea.Current, ib))
{
continue;
}
yield return ea.Current;
break;
}
}
}
}
#endregion
}
}
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