Screen Capture to video source

Hi everybody,

How can I capture screen image and output to video source.
Like Camtasia .
Any sample or relate information.

from this you can get an idea (or even use it) to write bmp
files to a video file:

video

this will capture the screen to a bitmap:

screen2bitmap

hope this helps,

http://forums.codeguru.com/images/ie.../2003/06/3.gif