判断空闲时间是否超过阀值

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如何使用的示例代码

void CRealLoginDlg::OnTimer(UINT_PTR nIDEvent){DWORD lastTickTock = IdleTrackerGetLastTickCount();DWORD nowTickTock = GetTickCount();DWORD differSeconds= (nowTickTock - lastTickTock)/1000;//if idle time is 5s，send login message!if (differSeconds>=5 && m_isStartLogin==false && m_ctlRememberPWD.GetCheck()==BST_CHECKED){PostMessageW(WM_AUTO_LOGIN);}CDialogEx::OnTimer(nIDEvent);}

依赖项

头文件清单

#pragma onceBOOL IdleTrackerInit();void IdleTrackerTerm();DWORD IdleTrackerGetLastTickCount();

源文件清单

#include "StdAfx.h"#include "IdleTracker.h"HHOOK g_hHkKeyboard = NULL;// handle to the keyboard hookHHOOK g_hHkMouse = NULL;// handle to the mouse hookDWORDg_dwLastTick = 0;// tick time of last input eventLONGg_mouseLocX = -1;// x-location of mouse positionLONGg_mouseLocY = -1;// y-location of mouse position/** * Get tick count of last keyboard or mouse event **/DWORD IdleTrackerGetLastTickCount(){return g_dwLastTick;}/** * Keyboard hook: record tick count **/LRESULT CALLBACK KeyboardTracker(int code, WPARAM wParam, LPARAM lParam){if (code==HC_ACTION) {g_dwLastTick = GetTickCount();}return ::CallNextHookEx(g_hHkKeyboard, code, wParam, lParam);}/** * Mouse hook: record tick count **/LRESULT CALLBACK MouseTracker(int code, WPARAM wParam, LPARAM lParam){if (code==HC_ACTION) {MOUSEHOOKSTRUCT* pStruct = (MOUSEHOOKSTRUCT*)lParam;//we will assume that any mouse msg with the same locations as spuriousif (pStruct->pt.x != g_mouseLocX || pStruct->pt.y != g_mouseLocY){g_mouseLocX = pStruct->pt.x;g_mouseLocY = pStruct->pt.y;g_dwLastTick = GetTickCount();}}return ::CallNextHookEx(g_hHkMouse, code, wParam, lParam);}/** * Initialize DLL: install kbd/mouse hooks. **/BOOL IdleTrackerInit(){if (g_hHkKeyboard == NULL) {g_hHkKeyboard = SetWindowsHookEx(WH_KEYBOARD, KeyboardTracker, NULL,  GetCurrentThreadId() );}if (g_hHkMouse == NULL) {g_hHkMouse = SetWindowsHookEx(WH_MOUSE, MouseTracker, NULL,  GetCurrentThreadId() );}_ASSERT(g_hHkKeyboard);_ASSERT(g_hHkMouse);g_dwLastTick = GetTickCount(); // init countif (!g_hHkKeyboard || !g_hHkMouse)return FALSE;elsereturn TRUE;}/** * Terminate DLL: remove hooks. **/void IdleTrackerTerm(){BOOL bResult;if (g_hHkKeyboard){bResult = UnhookWindowsHookEx(g_hHkKeyboard);_ASSERT(bResult);g_hHkKeyboard = NULL;}if (g_hHkMouse){bResult = UnhookWindowsHookEx(g_hHkMouse);_ASSERT(bResult);g_hHkMouse = NULL;}}

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