limits on the number of events, windows and threads?

Hi,

I vaguely remember reading about a quite low limit on the number of
event objects that a thread can hold because each one is said
to take up one bit in some 32 or 64 bit mask.

That was then invoked as a reason to allocate e.g. event or window
objects for as short a time span as possible.

Is there such a low limit on the number of events (or other types of
handles) than one thread can hold in native or in Wine?

Thank you for your help,
    Jörg Höhle