windows api实现计算机空闲关机

最新推荐文章于 2020-11-27 10:15:18 发布

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最新推荐文章于 2020-11-27 10:15:18 发布 · 2k 阅读

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CC 4.0 BY-SA版权

文章标签：

#windows #c语言 #线程 #性能 #cpu

这篇博客介绍了如何通过Windows API监听鼠标和键盘活动，若2分钟无操作则触发计算机关机。同时，文章还涵盖了获取计算机性能信息，如C盘使用率、CPU和内存利用率的方法，并涉及多线程技术。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1.实现监听全局的鼠标和键盘事件，2分钟不动则关机

2.实现计算机基本信息和性能信息的获取，比如C盘利用率，CPU利用率，内存利用率等等

3.开辟新的线程

完整代码如下：

#include <windows.h>
#include <time.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <tchar.h>

#define GB(x) (((x).HighPart << 2) + ((DWORD)(x).LowPart) / 1024.0 / 1024.0 / 1024.0)
typedef long long int64_t;
typedef unsigned long long uint64_t; 
HWND hgWnd;
HHOOK myhook;
HHOOK myhookForKeyboard;
long time0=0,time1=0;
//MSG Msg;
/*int get_io_bytes(uint64_t* read_bytes, uint64_t* write_bytes)  
{  
    IO_COUNTERS io_counter;  
    if(GetProcessIoCounters(GetCurrentProcess(), &io_counter))  
    {  
        if(read_bytes) *read_bytes = io_counter.ReadTransferCount;  
        if(write_bytes) *write_bytes = io_counter.WriteTransferCount;  
        return 0;  
    }  
    return -1;  
}  */

/*char* GetUserName(void)
{
         const int nBufSize = 30;
         char chBuf[nBufSize];
         ZeroMemory(chBuf,nBufSize);
 
        //获取当前登录用户的名称
        DWORD dwRet = nBufSize;
        if (::GetUserName(chBuf,&dwRet))
         {
               //
               OutputDebugString(chBuf);                
         }
         else
         {
               OutputDebugString(_T("获取登录用户名称出错!"));              
         } 
         OutputDebugString(_T("/r/n")); 
         return chBuf;
  }*/
/*void TcharToChar (const TCHAR * tchar, char * _char)  
{  
    int iLength ;  
	//获取字节长度   
	iLength = WideCharToMultiByte(CP_ACP, 0, tchar, -1, NULL, 0, NULL, NULL);  
	//将tchar值赋给_char    
	WideCharToMultiByte(CP_ACP, 0, tchar, -1, _char, iLength, NULL, NULL);   
}  
  char* GetPCName()
  {
        const int nBufSize = MAX_COMPUTERNAME_LENGTH + 1;
        TCHAR chBuf[nBufSize];
        ZeroMemory(chBuf,nBufSize); 
         //获取当前计算机的名称
        DWORD dwRet = nBufSize;
        GetComputerName(chBuf,&dwRet);
        char charBuf[nBufSize];
        TcharToChar(chBuf,charBuf);
        return charBuf;
  }*/
  
/*//获取实时网速  
int WIN_GetIfTable(WIN_IfTable& lstIf)
{
 // GetAdaptersAddresses
 // 网口信息, 准备1个足够大的buf
 struct
 {
  DWORD dwNumEntries;
  MIB_IFROW table[8];
 }myIfTable;
 memset(&myIfTable, 0, sizeof(myIfTable));
 //  DWORD nNumOfIf = 0;
 //  DWORD ret = GetNumberOfInterfaces(&nNumOfIf);
 ULONG nBufSize = sizeof(myIfTable);
 DWORD ret = GetIfTable((MIB_IFTABLE*)&myIfTable, &nBufSize, TRUE);
 if( ret == 0)
 {
  for(int i=0; i<myIfTable.dwNumEntries; i++)
  {
   WIN_IfEntry entry;
   MIB_IFROW* pRow = &myIfTable.table[i];
   strcpy(entry.strName, "");
   strcpy(entry.strDescr, (char*)pRow->bDescr);
   entry.nIndex = pRow->dwIndex;
   entry.nType = pRow->dwType;
   entry.nInOctets = pRow->dwInOctets; //pRow->dwInUcastPkts + pRow->dwInNUcastPkts;
   entry.nOutOctes = pRow->dwOutOctets; //pRow->dwOutUcastPkts + pRow->dwOutNUcastPkts;
   entry.nAdminStatus = pRow->dwAdminStatus;
   entry.nSpeed = pRow->dwSpeed;
   if(pRow->dwType == 6)
    lstIf.push_back(entry);
  }
 }
 return 0;
}  */
/// 获得CPU的核数  
int get_processor_number(/*int& dwNumberOfProcessors，*/)  
{  
    SYSTEM_INFO info;  
    GetSystemInfo(&info);  
    //info.dwProcessorType; CPU类型
	//
	//info.wProcessorLevel
	//info.wProcessorRevision
	//info.dwPageSize 
    return (int)info.dwNumberOfProcessors;  
}  

//CPU利用率  
__int64 CompareFileTime2(FILETIME time1, FILETIME time2)  
{  
//memcpy(<__int64>, &FILETIME, 8);
    __int64 a = time1.dwHighDateTime << 32 | time1.dwLowDateTime;  
    __int64 b = time2.dwHighDateTime << 32 | time2.dw