TTimer component which ships with Delphi / C++Builder uses the Windows Message Queue to generate the OnTimer event. Due to this approach it's impossible to get accurate timer intervals smaller than 50 milliseconds.
ZylTimer is a thread based timer and due to this architecture provides a real precision of 1 millisecond which is inevitable in time critical applications. The OnTimer event is always fired in time which is not available for the standard TTimer, when there are too many messages processed.
The standard TTimer component uses the SetTimer API function, so the interval is limited to 2147483647 milliseconds (about 25 days). ZylTimer is a thread based timer and the interval could be set even to hundred years if necessary.
Product License: SW
Source: On purchase/registration
File Status: Fully functional
Compatible with: C2k10 C2k6 C2k7 C2k9 CB5 CB6 CBXE CBXE2 CBXE3 CBXE4 D2005 D2006 D2007 D2009 D2010 D4 D5 D6 D7 DXE DXE2 DXE3 DXE4 DXE5 DXE64