Widescreen dehavior

[sonochiwa]

I want to play in windowed mode, not widescreen. How do I set this up?
I used a different version of the windowed mode plugin before, and it was possible (but there were bugs when displaying the escape menu).

[MiranDMC]

Just use cursor to hover over the edge of the window then drag it to desired size. There is aspect ratio info displayed on the title bar. 4:3 is classic for PC, 5:4 is more like on console.

If you want to have full screen with black bars on the left and right it is not possible.