Returns the time in milliseconds between calls to RefreshFromApplication()
[C++]
long GetRefreshPeriod();
The function returns the time in milliseconds between calls to RefreshFromApplication().
            See CXllPushApp::SetRefreshPeriod()
            for more details.
This function may only be called from the main thread.
Header: xlppush.h
CXllPushApp Class 
					  | CXllPushApp Methods			 
					  | CXllPushApp::SetRefreshPeriod()			 
					  | CXllPushApp::SetTickPeriod()			 
					  | CXllPushApp::GetTickPeriod()