Comments by newbie2015 (Top 1 by date)

I am trying to write a screencasting program. which simply casts whatever is there on the primary monitor to the secondary after slight modifications in the pixel information attained from the primary monitor. And I read a thread on stackoverflow which suggests using backbuffer in directx to capture screenshot is fastest way of approaching this for Windows7< systems. Faster than GDI, WMEncoder or FrontBuffer in DIrectX