private void ChangeDateUp(int numDays)
{
DateTime t = DateTime.Now.AddDays(1);
DateTime h = DateTime.Now.AddHours(0);
SYSTEMTIME st = new SYSTEMTIME();
st.FromDateTime(t);
st.FromDateTime(h);
SetSystemTime(ref st);
}
/// <summary>
/// 静态方法 转换为SYSTEMTIME
/// </summary>
/// <param name="time"></param>
/// <returns></returns>
public static SYSTEMTIME NewFromDateTime(DateTime time)
{
SYSTEMTIME stime = new SYSTEMTIME();
stime.FromDateTime(time);
return(stime);
}
// read SQL Time and set time on device
public static int SyncWithSqlTime(System.Data.SqlClient.SqlConnection con)
{
SYSTEMTIME systemTime = new SYSTEMTIME();
DateTime sqlTime = NODATE;
string sql = "SELECT GETDATE() AS [CurrentDateTime]";
using (System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(sql, con)) {
try {
cmd.Connection.Open();
System.Data.SqlClient.SqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
if (!r.IsDBNull(0))
{
sqlTime = (DateTime)r[0];
}
}
} catch (Exception) {
return(-1);
}
}
if (sqlTime != NODATE)
{
systemTime.FromDateTime(sqlTime); // Convert to SYSTEMTIME
if (SetLocalTime(ref systemTime)) //Call Win32 API to set time
{
return(1);
}
}
return(0);
}
private void ChangeDateDown(int numDays)
{
DateTime t = DateTime.Now.AddDays(-1);
SYSTEMTIME st = new SYSTEMTIME();
st.FromDateTime(t);
SetSystemTime(ref st);
}
public void SetDiscoveryTime(DateTime dt)
{
if (LastSeen != DateTime.MinValue)
{
throw new InvalidOperationException("LastSeen is already set.");
}
_info.stLastSeen = SYSTEMTIME.FromDateTime(dt);
}
/// <summary>
/// 设置系统时间
/// </summary>
/// <param name="datetime"></param>
/// <returns></returns>
public static bool SetSysTime(DateTime datetime)
{
//转换System.DateTime到SYSTEMTIME
SYSTEMTIME st = new SYSTEMTIME();
st.FromDateTime(datetime);
//调用Win32 API设置系统时间
return(Win32API.SetLocalTime(ref st));
}
public CTimeChanger(int msOffset)
{
DateTime t = DateTime.Now.AddMilliseconds(msOffset);
//Convert to SYSTEMTIME
SYSTEMTIME st = new SYSTEMTIME();
st.FromDateTime(t);
//Call Win32 API to set time
SetLocalTime(ref st);
}
private void OnSetTimeClicked(object sender, EventArgs e)
{
SYSTEMTIME lpLocalTime = new SYSTEMTIME();
lpLocalTime.FromDateTime(DateTime.Now);
lpLocalTime.Hour = Convert.ToInt16(this._tbHour.Text);
lpLocalTime.Minute = Convert.ToInt16(this._tbMin.Text);
lpLocalTime.Second = Convert.ToInt16(this._tbSec.Text);
SetLocalTime(ref lpLocalTime);
base.Close();
}
private static void SetSystemTime(DateTime time)
{
var timeStringArray = time.ToString("HH:mm:ss").Split(':');
SYSTEMTIME lpLocalTime = new SYSTEMTIME();
lpLocalTime.FromDateTime(DateTime.Now);
lpLocalTime.Hour = Convert.ToInt16(timeStringArray[0]);
lpLocalTime.Minute = Convert.ToInt16(timeStringArray[1]);
lpLocalTime.Second = Convert.ToInt16(timeStringArray[2]);
SetLocalTime(ref lpLocalTime);
}
private bool setTime(DateTime datetime)
{
SYSTEMTIME st = new SYSTEMTIME();
st.FromDateTime(datetime);
if (SetLocalTime(ref st))
{
mTimeSpan = DateTime.Now - DateTime.Now;
return(true);
}
return(false);
}
/// <summary>
/// 设置系统时间
/// win7需要管理员权限
/// </summary>
/// <param name="dateTime"></param>
/// <param name="exceptionHandler"></param>
/// <returns></returns>
public static bool SetSystemTime(DateTime dateTime, Action <Exception> exceptionHandler = null)
{
try
{
SYSTEMTIME systemtime = SYSTEMTIME.FromDateTime(dateTime);
return(Win32API.SetLocalTime(ref systemtime));
}
catch (Exception e)
{
exceptionHandler?.Invoke(e);
return(false);
}
}
/// <summary>
/// Edit an existing user notification.
/// </summary>
/// <param name="handle">Handle to the notification to overwrite.</param>
/// <param name="application">String that specifies the name of the application that owns this notification.</param>
/// <param name="time">The time when the notification should occur.</param>
/// <param name="notify">Notification object that describes the events that are to occur when the notification time is reached.</param>
/// <returns>The handle to the notification indicates success.</returns>
public static int SetUserNotification(int handle, string application, System.DateTime time, UserNotification notify)
{
SYSTEMTIME st = SYSTEMTIME.FromDateTime(time);
//call api function
int outhandle = NativeMethods.CeSetUserNotification(handle, application, ref st, notify);
//if invalid handle throw exception
if (outhandle == 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Error setting UserNotification");
}
return(outhandle);
}
public void SetTimeFunc(double TimeUnix)
{
//取得当前系统时间
DateTime t = ConvertIntDateTime(TimeUnix);
//对比时间点更新
SelectPaste_From.ctDateTime = t;
//转换System.DateTime到SYSTEMTIME
SYSTEMTIME st = new SYSTEMTIME();
st.FromDateTime(t);
//调用Win32 API设置系统时间
Win32API.SetLocalTime(ref st);
}
/// <summary>
/// This function prompts the system to start running a specified application at a specified time.
/// </summary>
/// <param name="appName">Name of the application to be started.</param>
/// <param name="time">DateTime at which to run application.</param>
/// <remarks>To cancel an existing RunAppATime request pass the application name and DateTime.MinValue</remarks>
public static void RunAppAtTime(string appName, System.DateTime time)
{
SYSTEMTIME st = new SYSTEMTIME();
if (time != System.DateTime.MinValue)
{
//get native system time struct
st = new SYSTEMTIME();
st = SYSTEMTIME.FromDateTime(time);
if (!NativeMethods.CeRunAppAtTime(appName, ref st))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Cannot Set Notification Handler");
}
}
else
{
if (!NativeMethods.CeRunAppAtTimeCancel(appName, null))
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Cannot Cancel Notification Handler");
}
}
}