How multithreading occurs in TTimer for animation usage?
lazarus / 39-Graphics

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avv210 · 2022-04-19 12:55

Hey guys. I use the TTimer component in Lazarus for my animation, the
method I use is sleep(). How does multithreading occurs in sleep()?
Thank you

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Martin_fr · 2022-04-19 15:22

1) TTimer does not use threads. TTimer runs in the main thread.

2) Sleep only affects the thread that calls it.
- Other threads are not affected
- The thread that called "sleep" is blocked during the call. If this
is the main thread, then timer events will be delayed until after the
sleep.

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Dzandaa · 2022-06-29 08:34

Hi,

There is the code I use for non blocking Sleep:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i //
************************************// **** Delay: Non Blocking Sleep
*****// ************************************procedure Delay(Milis:
qword);var  TimeSpend: qword;begin   TimeSpend := GetTickCount64; 
while (GetTickCount64 < TimeSpend + Milis) and (not
Application.Terminated) do    Application.ProcessMessages; end;