Files
shadowsocks-windows/shadowsocks-csharp/Util/ViewUtils.cs
T
2016-12-23 21:41:11 +08:00

36 lines
1.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Windows.Forms;
namespace Shadowsocks.Util
{
public static class ViewUtils
{
public static IEnumerable<TControl> GetChildControls<TControl>(this Control control) where TControl : Control
{
if (control.Controls.Count == 0)
{
return Enumerable.Empty<TControl>();
}
var children = control.Controls.OfType<TControl>().ToList();
return children.SelectMany(GetChildControls<TControl>).Concat(children);
}
// Workaround NotifyIcon's 63 chars limit
// https://stackoverflow.com/questions/579665/how-can-i-show-a-systray-tooltip-longer-than-63-chars
public static void SetNotifyIconText(NotifyIcon ni, string text)
{
if (text.Length >= 128)
throw new ArgumentOutOfRangeException("Text limited to 127 characters");
Type t = typeof(NotifyIcon);
BindingFlags hidden = BindingFlags.NonPublic | BindingFlags.Instance;
t.GetField("text", hidden).SetValue(ni, text);
if ((bool)t.GetField("added", hidden).GetValue(ni))
t.GetMethod("UpdateIcon", hidden).Invoke(ni, new object[] { true });
}
}
}