hi russ, thanks for the info.
thanks dharani On Sat, Dec 27, 2008 at 3:10 PM, Russ Cox <r...@swtch.com> wrote: >> this is regarding alpha channel. >> i am able to change the alpha value for an image by setting new alpha value >> for every pixel. >> but i was thinking we also could set the alpha value for all of the pixels >> in a window/screen just but setting the value somewhere, say using ctl. is >> this not possible in plan9 or inferno? i am wondering how i got that > > the graphics operators support alpha blending > but the window system still assumes, at a deep level, > that windows are opaque rectangles. > > russ > >
