Is there a way to disable respondent take screen snap?

There is a concept test project that my client don't want repondent to take the screen snap,whatever on desktop or on mobile devices.
I understand this may not be truly diabled because one can always use another device to just take a photo of the device that showing the survey program.
I just want to know whether we can disable the internal screen snap function of the device that run the survey program, at least the respondent may not get the high display quality concept images.

Thanks.

Fisher