/// <summary>
/// Task that calls method saving window position
/// on disk.
/// When it called - do:
/// 1) Set flag _isInPosMonitoring
/// (to make only one call of task).
/// 2)Wait till user finish changing positions
/// (we assume that user doesn't change during 500 msec)
/// 3) Call saving method
/// 4) Reset flag _isInPosMonitoring
///
/// Called from
/// 1. BaseTerminalWindow.OnUpdateWindowPosAndSize()
/// 2. BaseTerminalWindow.BaseTerminalWindow_Closed
/// </summary>
private void TaskSaveWindowData()
{
const int _minChangeSaveIntervalMSec = 500;
_isInPosMonitoring = true;
while ((DateTime.Now - _dtLastPosChanged).TotalMilliseconds <
_minChangeSaveIntervalMSec)
{
Thread.Sleep(100);
}
KernelTerminal.SaveWindowPosition(_geomWindow);
_isInPosMonitoring = false;
}