Call code every frame

[GreatCorn]

Hi. I am really new to Lazarus and I need to do a simple thing - call a piece of code every frame if a boolean is true. I've tried timers, but they are really slow, I tried searching for anything else and I simply didn't find what I wanted. Is there a procedure for this? Something like the Update() function?

[bigeno]

For TTimer you can set 1 milisecond, do you need more precise than 1 millisecond ?

maybe here http://wiki.freepascal.org/QueryPerformanceCounter

[GreatCorn]

For TTimer you can set 1 milisecond, do you need more precise than 1 millisecond ?

maybe here http://wiki.freepascal.org/QueryPerformanceCounter

Sorry, I'm a noob in Lazarus. How exactly do I do it?

[bigeno]

Just set interval value. See attached screenshot

[Mr.Madguy]

For TTimer you can set 1 milisecond, do you need more precise than 1 millisecond ?

maybe here http://wiki.freepascal.org/QueryPerformanceCounter

1 millisecond is usually impossible. Minimal value is USER_TIMER_MINIMUM = 10. But even this value isn't guaranteed, as I know, due to internal kernel precision or something like that. Something around 20-30 milliseconds is only guaranteed interval.

[bigeno]

1 millisecond is usually impossible. Minimal value is USER_TIMER_MINIMUM = 10. But even this value isn't guaranteed, as I know, due to internal kernel precision or something like that. Something around 20-30 milliseconds is only guaranteed interval.

oh yes, but I don't think he will need more then 100fps

[Thaddy]

Timers are so no,no. Override OnPaint.

[GreatCorn]

Just set interval value. See attached screenshot

Oh my god. I am so dumb. Thank you very much