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公告

最近使用golang开发windows服务,需要获取idle time,由于资料比较少,在此记录,代码如下:

package osapi

import (
    "syscall"
    "unsafe"

    "github.com/lxn/win"
)

// last input info
var lastInputInfo struct {
    cbSize uint32
    dwTime uint32
}

// get idle time
func GetIdleTime() int64 {
    lastInputInfo.cbSize = uint32(unsafe.Sizeof(lastInputInfo))

    // load user32.dll , Kernel32.dll only once
    user32 := win.MustLoadLibrary("user32.dll")
    kernal32 := win.MustLoadLibrary("Kernel32.dll")

    getLastInputInfo := win.MustGetProcAddress(user32, "GetLastInputInfo")
    getTickCount := win.MustGetProcAddress(kernal32, "GetTickCount")

    tickCount, _, _ := syscall.Syscall(getTickCount, 0, 0, 0, 0)
    res, _, _ := syscall.Syscall(getLastInputInfo, 1, uintptr(unsafe.Pointer(&lastInputInfo)), 0, 0)
    if res == 0 {
        panic("get idle time error")
    }
    result := int64((int64(tickCount) - int64(lastInputInfo.dwTime)) / 1000)
    var idleTime int64 = 0
    if result > 0 {
        idleTime = result
    }
    return idleTime
}
posted on 2016-02-27 21:18 一头野兽 阅读(...) 评论(...) 编辑 收藏