:'''aiBarSpacing''' - returns a value indicating the bar spacing of a chart (i.e. the value found in the ''Format Window'' -> ''X-Time scale screen'').
:'''aiCalcReason''' - specifies return of the calculation reason(one of the 4 options below). GetAppInfo will return the value, indicating the reason of calculation initialization.
:: '''CalcReason_Default''' - calculation is to be initialized when the new bar/tick appeared.