Accessing the Video Ram through Gcc

pvvraju · 05-24-2004, 09:09 AM

I want to know the way through which I can access the Video Ram and read the Desktop Displayed data from it through ' C ' language .Please give me the detailed solution of this question. I want to Know atleast the Process through which the Linux's X windows will display the remote Desktop.

thank you.

your's sincerly
pvvraju

dakensta · 05-24-2004, 10:48 AM

xwd is a program that allows you to read the data from any X window (and dumps it in a file).

If you download the XFree86 source code (the XFree86*src-2.tgz file will suffice) you will find the source code to 'xwd' in one of the subdirectories.

This should provide you with sufficient detail, depending on your goals.

Most of the function calls have man pages or you can reference them at http://tronche.com/gui/x/xlib/function-index.html .