Steven,
>Yes there are threads involved.<
Have you considered using a mutex or semaphore? This guarantees thread safe
queueing of event processing (waiting threads sleep until OS ready for them
to run - no polling). I would use a mutex as your requirement is for single
thread execution. The code is (very roughly) ...
var
MHandle : THandle;
procedure OnCreate;
begin
MHandle:=CreateMutex (nil,false,'MyMutexName');
end;
procedure OnDestroy;
begin
CloseHandle (HMutex);
end;
procedure MyEventHandler;
begin
WaitForSingleObject (MHandle, INFINITE);
Do your single-thread-only stufff here ...
ReleaseMutex (MHandle);
end;
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