forked from ShareX/ShareX
-
Notifications
You must be signed in to change notification settings - Fork 0
/
TimerResolutionManager.cs
92 lines (74 loc) · 2.65 KB
/
TimerResolutionManager.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (c) 2007-2024 ShareX Team
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at <http://www.gnu.org/licenses/>.
*/
#endregion License Information (GPL v3)
using System;
using System.Runtime.InteropServices;
namespace ShareX.HelpersLib
{
public class TimerResolutionManager : IDisposable
{
private static readonly object thisLock = new object();
private static bool enabled;
private static uint lastPeriod;
public TimerResolutionManager(uint period = 1)
{
Enable(period);
}
public void Dispose()
{
Disable();
}
public static bool Enable(uint period = 1)
{
lock (thisLock)
{
if (!enabled)
{
TimeCaps timeCaps = new TimeCaps();
uint result = NativeMethods.TimeGetDevCaps(ref timeCaps, (uint)Marshal.SizeOf(typeof(TimeCaps)));
if (result == 0)
{
period = Math.Max(period, timeCaps.wPeriodMin);
result = NativeMethods.TimeBeginPeriod(period);
if (result == 0)
{
lastPeriod = period;
enabled = true;
}
}
}
return enabled;
}
}
public static bool Disable()
{
lock (thisLock)
{
if (enabled)
{
uint result = NativeMethods.TimeEndPeriod(lastPeriod);
if (result == 0)
{
enabled = false;
}
}
return !enabled;
}
}
}
}