public InputWatcher(double interval)
{
// 必须将结构体的cbSize设置为结构体的大小(sizeof(LastInputInfo))
// https://docs.microsoft.com/en-us/windows/desktop/api/winuser/ns-winuser-taglastinputinfo
LastInputInfo = new DLLInvoke.LastInputInfo();
LastInputInfo.cbSize = Marshal.SizeOf(LastInputInfo);
Timer = new Timer
{
Interval = interval,
AutoReset = true
};
}
/// <summary>
/// 获取最后一次输入距现在的毫秒值
/// </summary>
/// <param name="lastInputInfo"></param>
/// <returns></returns>
public static uint GetLastInputTimeInterval(ref DLLInvoke.LastInputInfo lastInputInfo)
{
uint inputInterval = 0;
if (DLLInvoke.GetLastInputInfo(ref lastInputInfo) != 0)
{
inputInterval = DLLInvoke.GetTickCount() - lastInputInfo.dwTime;
if (inputInterval < 0)
{
inputInterval = 0;
}
}
return(inputInterval);
}