Hello,
sure, here it is.
1. Just run Project1.exe Then click on “Show Form2” button. Form2 is shown. Then click on “Close” button in form2. Form2 is closed. Press TAB key and exception “Cannot focus disabled or invisible window” is thrown.
2. For second related issue, you have to enable FormHide animation on SkinManager. Then repeat steps in point 1. After pressing TAB key, exception is not thrown now, but when you press Enter key immediately then, “message” dialog is popped up – it means that Form2 is still focused and we just performed operation on button2 “Some dialog message” on closed Form2.
If you disable ExtendedBorders, both two previous issues are gone and it works perfectly.