Question : create a rounded corner, outside white, inside transparent, see atttached for example

as seen in the example

there is the black rounded corner with white outside

what i want is the outside bit only but dont know how to do it

so the outside has rounded white bit on and the inside (black) is transparent

can anyone help?

Thanks

Answer : create a rounded corner, outside white, inside transparent, see atttached for example

in photoshop
- double click the layer or right click and choose blendeing option.
- on the left you will see Stroke
- choosing it will add line around you abject - this is the stroke :)