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With vector drawing on a canvas you can have subpixel movement (and partial clearing as well): EnableExplicit Define ww, wh, style, win, canvas, event, quit Define draw ww=800 wh=600 style | #PB_Window_ScreenCentered style | #PB_Window_SystemMenu style | #PB_Window_MinimizeGadget win = OpenWindow(#P...

If you don't need high performance maybe a hack is sufficient, like grabbing and double rerendering the screen. A simple demo would be for example examples/3d/Bridge.pb with RenderWorld() replaced with this code: GrabSprite(0, 0, 0, ScreenWidth(), ScreenHeight()) RenderWorld() GrabSprite(1, 0, 0, Sc...

Instead of this: EnableExplicit Define win, show, hide, g, event, quit win = OpenWindow(#PB_Any, 50, 100, 630, 110, "..") hide = ButtonGadget(#PB_Any, 10, 10, 300, 40, "hide") show = ButtonGadget(#PB_Any, 320, 10, 300, 40, "show") Dim gadgets(10) For g = 0 To 9 gadgets(...

It could be a faulty event processing, that's what it look like to me. If you have something like a main loop that only processes one event instead of all events then some events could lag behind. Also the regular time steps of the lags look like you have some Delay() or other work done that impedes...

I don't get the warning by the way. Maybe some library versions on your system don't match? I don't know really. Maybe try the checkinstall script that comes with purebasic.

Does the example in the doc for KeyboardPushed() work?

If you remove the main loop (empty else block) then do you still get the IMA?

Saboteur wrote: ↑Wed Dec 15, 2021 5:54 pm I think you must use a valid monitor resolution, so 100x100 must not work.

But the program should silently do nothing then by going into the empty ElseIf branch, and that's what it does on my Ubuntu. I don't get an IMA.

You can do something like that with the JSON and XML libs.

similar, but not the exact answer i think, but it was posted somewhere in the forum:
How to loop through structure fields?
https://www.purebasic.fr/english/viewtopic.php?t=73867

On my Ubuntu the test code fails at OpenLibrary, but it works (on my system) with "libGL.so". But it then fails because GetFunction result is 0.
For a start: https://stackoverflow.com/a/66249269

Coole Fraktale

The thread title says 'quick' instead of 'quite'.

git diff has an option to detect code moves. You can diff any two files without having any git repo initialized. It's only coloring though, not giving any patch info. Not sure how useful it is.

You could add some test code (in debug mode) that uses a test thread which double-locks a mutex. If it doesn't finish after some time you give yourself a message. So when you port your code you will get notified immediately in case reentrant isn't working.

It seems to work here on my Ubuntu 18 / x86_64

It's not a problem, PB mutex locks are reentrant
https://en.wikipedia.org/wiki/Reentrant_mutex