video quality, positioning

[bonfildev]

Hi, I have 2 questions.
I'm trying to capture a Windows Forms screen, but noticed that if the codec ! = Uncompressed, it resizes the window and I can't get it back unless I close the project, any idea why it's doing this?.

And I'm also interested in knowing if it's possible to choose the initial position that I want to capture since it takes the top left corner.