Hi, I created an application, on Mac OS X, which captures the screen image. I tried by both by using OpenGL and Quartz, and my program works fine unless I switch the user via fast user switching or switch to the login screen. The problem is that if, say, I use Quartz by making use of CGDisplayBaseAddress()as VNC does, the function returns NULL instead of the address of the display buffer.
Now, somehow VNC manages to have the screen captured even in such cases. Can somebody know this is accomplished? Is it by making use of virtual framebuffers? <http://slashdot.org/comments.pl?sid=149912&cid=12567332> And if so, how please? Thanks, Josianne _______________________________________________ VNC-List mailing list [email protected] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
