Disabling Print Screen

[memoboy]

i have a problem i need to diasble the print screen in my application. i have been program my application by using C# language and i need to prevent any user from copying any desplayed image on it. i have been search alot but i couldnt find any. i try to learn programming what ever i had i feal that i did'nt get anything

[Wjousts]

What do you mean by "disable the print screen"? You want to stop people copying text off your application using the clipboard? You want to stop people taking screenshots (in which case, I think you're out of luck!)?

[Dave Kreskowiak]

You can disable print screen keys (PrtScrn and Alt-PrtScrn) by redirecting the hot keys to your applications main window. But there is no way you can't stop another application, like ScreenGrabber, from grabbing the screen, and your graphic images. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

[Dan Neely]

I thought dvd player apps could prevent 3rd party apps from doing screen grabs. I assume they do it by accessing hardware at a lower level than the win32api provides access to.

[Dave Kreskowiak]

Not really. You're grabbing exactly what you should, the image in the frame buffer. The frame buffer just happens to be blank in the video window. The video you're seeing isn't being shown in this frame buffer, but is an overlay rendered by a different part of the video card. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

[memoboy]

you have been mentioned somthing about redirecting the hot key, i have been searched for this solution but i didnt find any thing help full for how to do that with c#. it's ok for me to prevent the people from doing it at least in the easy way, so here i have a new Q how could i use the registry hot key with c# thanks for help, a little help do alot i try to learn programming what ever i had i feal that i did'nt get anything

[Dave Kreskowiak]

memoboy wrote:

how could i use the registry hot key

???????? :confused::confused::confused::confused::confused::confused: What are talking about? The only thing I have on doing this for PrtScn is in C++, here[^]. I don't know of any C# version of this. From what I've seen in sample code, it should be pretty straight forward to convert some variant of this technique to C#. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome