mirror of https://github.com/ShareX/ShareX.git
92 lines
2.7 KiB
C#
92 lines
2.7 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2024 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using System;
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using System.Runtime.InteropServices;
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namespace ShareX.HelpersLib
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{
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public class TimerResolutionManager : IDisposable
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{
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private static readonly object thisLock = new object();
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private static bool enabled;
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private static uint lastPeriod;
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public TimerResolutionManager(uint period = 1)
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{
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Enable(period);
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}
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public void Dispose()
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{
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Disable();
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}
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public static bool Enable(uint period = 1)
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{
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lock (thisLock)
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{
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if (!enabled)
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{
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TimeCaps timeCaps = new TimeCaps();
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uint result = NativeMethods.TimeGetDevCaps(ref timeCaps, (uint)Marshal.SizeOf(typeof(TimeCaps)));
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if (result == 0)
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{
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period = Math.Max(period, timeCaps.wPeriodMin);
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result = NativeMethods.TimeBeginPeriod(period);
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if (result == 0)
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{
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lastPeriod = period;
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enabled = true;
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}
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}
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}
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return enabled;
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}
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}
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public static bool Disable()
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{
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lock (thisLock)
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{
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if (enabled)
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{
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uint result = NativeMethods.TimeEndPeriod(lastPeriod);
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if (result == 0)
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{
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enabled = false;
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}
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}
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return !enabled;
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}
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}
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}
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} |