I've fitted a window to my new workshop which I think is defined as
'top hung', but has friction hinges at the side so that I can open it
out and up, and slide in long sections of wood straight onto the
bench.

The multilever side hinges cope with the hinging and the 'staying
open', but what does the collective suggest I use for the 'staying
closed' bit. The similarly hinged windows in my modern extension have
a handle and lever operating lock into the frame but I don't know
whether you can get such things or whether there is something simpler
joinerywise that is around.

Thanks for any assistance

Rob