c# - How to prevent screenshot from program -


is there way protect program form of screenshoting users? example not want program in screenshot when user presses print screen key on keyboard. possible make somehow key preview in program minimizes program on pressing print screen keyt user?

i want c# winforms.

p.s. know bit stupid, user can take real photo of screen :p curiosity!

only thing think of right using video overlay draw application's contents (i.e. similar classiv video players). way usual screenshot programs blank/almost black image. it's still no 100 % secure way. passes through software can manipulated/grabbed in way.


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