[Lazarus] Windows.PostMessage vs Application.QueueAsyncCall

[Michael Schnell]

On 03/19/2014 02:04 AM, Hans-Peter Diettrich wrote:
>
> For Windows applications you should eventually know some bits about 
> the main thread message queue. 
Not really, as LCL and RTL provide as well TThread.Queue and 
Application.QueueAsyncCall in Windows and Linux (and Mac, AFAIK). In 
Delphi you just have TThread.Queue. (Hence  TThread.Queue in fact is my 
favorite way of  asynchronous  signaling. )


The "very old style" Delphi / Windows way for asynchronous signaling was 
using " PostMessage(); "and  "Procedure ....message .. ".

We poor Delphi programmers were forced to do this before Borland and 
friends implemented " TThread.Queue() ". In fact they were bold enough 
to provide the documentation for TThread.Queue only several versions 
later than the actually working implementation.

-Michael