58 lines
1.1 KiB
C++
58 lines
1.1 KiB
C++
#include "PerformanceTimer.h"
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#include "mmsystem.h"
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#pragma comment(lib,"winmm.lib")
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#ifdef __MINGW32__
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#define TIME_KILL_SYNCHRONOUS 0x0100
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#endif
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//高级定时器，但是结果表明没啥卵用
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void CALLBACK PeriodCycle(uint timerId,uint,DWORD_PTR user,DWORD_PTR,DWORD_PTR)
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{
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PerformanceTimer *t=reinterpret_cast<PerformanceTimer *>(user);
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emit t->timeout();
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}
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PerformanceTimer::PerformanceTimer(QObject *parent) : QObject(parent)
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{
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m_id=0;
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}
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PerformanceTimer::~PerformanceTimer()
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{
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stop();
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}
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void PerformanceTimer::start(int timeInterval)
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{
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m_interval = timeInterval;
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m_id=timeSetEvent(m_interval,1,PeriodCycle,(DWORD_PTR)this,
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TIME_CALLBACK_FUNCTION|TIME_PERIODIC|TIME_KILL_SYNCHRONOUS);
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}
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void PerformanceTimer::start()
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{
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m_id=timeSetEvent(m_interval,1,PeriodCycle,(DWORD_PTR)this,
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TIME_CALLBACK_FUNCTION|TIME_PERIODIC|TIME_KILL_SYNCHRONOUS);
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}
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void PerformanceTimer::stop()
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{
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if(m_id)
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{
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timeKillEvent(m_id);
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m_id=0;
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}
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}
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void PerformanceTimer::setInterval(int interval)
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{
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m_interval = interval;
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}
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