Cupboard latch, can't find the words!

Cheers. That is pretty close, but the one I have seen before is surface mounted, whereas that would require routing and all sorts! Could be made to slam shut by angling the receiving piece though...

The reason I can't reach over, is because it is a gate on the side of our bed which we share with our 6 month old daughter. The gate essentially turns the bed into a cot, and is high enough that she can stand, but not climb over (hopefully). The latch needs to be on the outside so she wont be able to get to it, and Still allow us to easily get out of bed in the night, and reaching over would require kneeling which is not easy...