The problem can be reproduced like this:

1) Create new "Graphical application"

2) Add a Button to FMain (we shall call it Button1, no events needed)

3) Paste this code to FMain.class:


4) Run

5) Try pressing right arrow on the keyboard to increment i by 1

6) Turn the mouse wheel once.

7) Try pressing right arrow on the keyboard and it increments i twice !?!?

8) Click Button1.

9) Try pressing right arrow on the keyboard again and it will increment i by 1

The weird behaviour has something to do with .HasFocus

Am I missing something here or is this a bug that should be reported to Benoit Minisini?

PS: I am using Gambas 3.18.90 on Linux Mint 21.1 Cinnamon 5.6.8

With this your line:

JumpyVB said

Code (gambas)

1. If Key.Right Then

I get the increment of the global variable, even if I press the other keys.
So, I propose to use this other line of code:

JumpyVB said

7) Try pressing right arrow on the keyboard and it increments i twice !?!?

It doesn't happen to me.

vuott said

It doesn't happen to me.

Whats your gambas and os version?

I'm also using Mint 21.1 and the problem you report also happens to me, but I have discovered that this only happens with gb.gui. If you change from GTK to QT using gb.gui.qt instead, the problem goes away. Whether this is a bug in Gambas or in GTK, I leave to others to work out.

cogier said

I'm also using Mint 21.1 and the problem you report also happens to me, but I have discovered that this only happens with gb.gui. If you change from GTK to QT using gb.gui.qt instead, the problem goes away. Whether this is a bug in Gambas or in GTK, I leave to others to work out.

Thank you for confirming.