96 lines
1.7 KiB
C#
96 lines
1.7 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using System.ComponentModel;
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using System.Threading;
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namespace lib
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{
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public class Timer
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{
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[DllImport("Kernel32.dll")]
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private static extern bool QueryPerformanceCounter(
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out long lpPerformanceCount);
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[DllImport("Kernel32.dll")]
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private static extern bool QueryPerformanceFrequency(
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out long lpFrequency);
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private long startTime;
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private long stopTime;
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private long freq;
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private long freq_millis;
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// Constructor
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public Timer()
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{
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startTime = 0;
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stopTime = 0;
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if (QueryPerformanceFrequency(out freq) == false)
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{
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// high-performance counter not supported
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throw new Win32Exception();
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}
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freq_millis = freq / 1000;
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}
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// Start the timer
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public void Start()
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{
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// lets do the waiting threads there work
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//Thread.Sleep(0);
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QueryPerformanceCounter(out startTime);
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}
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// Stop the timer
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public void Stop()
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{
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QueryPerformanceCounter(out stopTime);
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}
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public double Seconds
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{
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get
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{
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long current;
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QueryPerformanceCounter( out current );
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return (double)( current - startTime ) / freq;
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}
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}
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public long Current
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{
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get
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{
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long current;
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QueryPerformanceCounter( out current );
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return ( current - startTime ) / freq_millis;
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}
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}
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public double Duration
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{
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get
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{
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return (double)( stopTime - startTime ) / (double)freq;
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}
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}
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public long DurationMS
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{
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get { return (stopTime - startTime) / freq_millis; }
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}
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}
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}
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