Hello everyone,

I'm new at FLTK and I don't know if this is a bug or if I made something wrong.
I want two layers of Tabs. At the higher layer there will be one tab for every opened file. Then there will me four groups in every file and I want to have one tab for every of those four groups.

So, at first there is nothing. Then the user opens a file and there will be one tab with four smaller tabs inside. Then the user opens another tab so he have two tabs with another four tabs inside each.

I already have it and it does exactly what it shout do... but only with two main tabs.
After opening the first main tab it is simply empty. I can't change that. Then after opening a second main tab I have to switch so that second tab (which is also empty) and switch back to the first tab. Then everything is filled and I can normally work with all tabs.

Anyone have an idea how to solve that?

greets Dergel

PS: I'm from germany, so excuse me if I wrote bad english...