I have an add-in that displays a modeless form. I have some text boxes on this form. The tab should cause the focus to switch between the controls on the form. Instead the Tab key has no effect.

Modulation recognition (modrec) is an essential transmitter fingerprinting task that enables future spectrum-sharing applications such as access management and enforcement. Traditional supervised ...

But on my Secondary-Screen with 100% scaling, the Modal Dialog is not centered to it's parent. But a Modeless Dialog (.Show()) is centered! On my Main-Screen with 125% scaling, the Modal Dialog is ...