How to make all screen black?

[summit]

FadeOut(0); //This will fade the screen out instantly.

FadeIn(5); //This will fade the screen back in over 5 seconds.

Oh thanks, I thinked FadeOut and FadeIn works for another thing.

And there is one more question, I want to make my message stay on the screen like 30 seconds, how can I make it stay 30 sec with codes?

When using messages, the length the message is displayed for is the third parameter, for example this message would display for 15 seconds:

SetMessage("Message1Category", "Message1Text", 15);

Oh thanks. I almost forgot everything.

No problem. If you get stuck, I suggest using this page, it's very helpful
http://wiki.frictionalgames.com/hpl2/amn..._functions

I know Thanks again, but I couldn't the thing that I search for