Lazarus Debugger debugging prevention in library units

Question

When starting the Lazarus Object Pascal program in debug mode, the debugger opens ten libraries of LCL libraries in the IDE editor and passes them to all these blocks after completing any of my event handlers with the F4 key. How can I prevent this, and instead restrict the debugger to just my source code?

Answer 1

Thanks to everyone who tried to answer. But I think the problem is resolved. For more details see: http://forum.lazarus.freepascal.org/index.php/topic,30321.0.html