fun with desktop

I seen many programs from which we can have fun with desktop ,for example ,
a cat tears the start bar apart and runs from start bar to task bar and then disappears.Another good example is we can gun fire all over the screen and bullets makes
holes on it.
I know you got me here what I am talking about. :) And I do know this is done via c++ but don't know to how to?

please enlighten me :)

best regards,
Chakra

Any application can draw to the desktop, you just have to get the Desktop Window.

--
Mats

GetDC(HWND_DESKTOP), the problem is knowing when to repaint.

Here is a very crude bullet shooter I made several years ago:

Anim.ico is missing.

thanks for all great replies :D