Do timer events in Delphi happen in their own thread?

Question

When a Delphi timer executes, is it not in the main thread?

procedure TMainForm.MyTimerTimer(Sender: TObject);
begin
      MyModalDialog.StatusText.BeginUpdate;
      MyModalDialog.StatusText.Text := 'timer fired...';
      MyModalDialog.StatusText.EndUpdate;
end;

I am wondering if crashes here are due to updating the GUI elements outside of the main thread.

score 4 · Answer 1 · answered Nov 19 '20 at 17:31

4

The timer event handler execute in the context of the thread having created it. Usually it is the main thread but you can create a timer within any thread.

answered Nov 19 '20 at 17:31

fpiette

11,983
1
24
46

score 1 · Accepted Answer · answered Nov 19 '20 at 17:23

1

The timer will execute on the main thread. No need to worry about using Synchronize().

answered Nov 19 '20 at 17:23

Z .

12,657
1
31
56

Do timer events in Delphi happen in their own thread?

2 Answers2