Question / Help How do i stream just a part of the window

[Mikeobsproject]

Hello i have downloaded OBS studio,

I wanna stream a playing movie to facebook live.
But by ''sources'' i can choose between screencapture or windowcapture.

But then he will stream the whole screen or window but i want OBS just to stream a part of the window.
How do i fix this ? i spend hours watching youtube tutorials and reading tutorials on google.
I see a red cube with 6 dots but i cant get it to the right size to stream a certain part in the window it just stays around the whole window.

I hope you guys can help me out.

Thanks!

 

[Simes]

Hold down ALT when dragging the border of the source to crop instead of resizing.

 

[Mikeobsproject]

Thank you verry much it worked!
I have a second question when i do a windowcapture with youtube etc. There is no problem but when i try it by the( dutch) netflix.
I only see a black screen is this some kind of security ?
Is there any option how i can fix this?

 

[Mikeobsproject]

And i noticed that after i used ctrl + F
That the hold down ALT dragging option isnt working anymore
How do i fix that do i have to refresh something or ?

 

[Simes]

You could also try using the crop filter.

 

[Mikeobsproject]

Okee thank you its working.
Why do i get a black screen with Netflix ? Is this some kind of security or ? Cause youtube etc is working.