[BeckyEbook]

Originally Posted by DiapDealer

But how are you getting Sigil INTO fullscreen mode on Windows? Neither F11, nor alt+Enter have any effect on any of the 3 Windows 10 machines (2 physical and one virtual), that I've tried it on.

Well...
Sometimes I write too briefly.

For testing, I use two ways:
1. I edit sigil_v6.ini and type:

maximized=false
fullscreen=true

I run the released version 2.3.0 and close it.
Then the geometry is set to fullscreen.
Version 2.3.1 recognizes that the geometry points to fullscreen and I can test.

2. Donate button is often used for me to test, so I plugged myself the code:

void MainWindow::Donate()
{
    if (isFullScreen()) {
        showNormal();
    } else {
    showFullScreen();
    }
}

It works perfectly. Clicking on the heart icon turns the full screen on/off.

I privately use this icon for a different purpose CreateHTMLTOC(); but for full-screen testing this was the easiest solution for me.