...of bug:

https://picload.org/image/rrrgwpgi/gtkd_timeout.png

    private void letButtonsFlash(){
        foreach(Button...

...very much appreciated if someone who has GTKD installed can try my code:

http://pastebin...

Thanks for your answer,

but as i said before, i want to flash each button...

How about this:

private void letButtonsFlash(){
    foreach(Button btn;bArr){
        btn.setSensitive(false);
    }
    for(int...

This leads to a Range violation exception...

You should probably increment the index in the timeout_delay function.

-- 
Mike Wey

Okay, i tried it with a new private int-variable which contains the current index...

Thanks a lot for your answer, i tried it like this and it works:

    private...

...add from the linked tutorial: http://api.gtkd.org/src/glib/Timeout.html#Timeout.add...

This is the correct error message:

Error: none of the overloads of '__ctor' are callable...