On Thu, Feb 18, 2021 at 02:00:44PM +0100, Klaus Ethgen wrote: > Hi Dominik, > > Am Do den 18. Feb 2021 um 12:36 schrieb Dominik Vogt: > > On Wed, Feb 17, 2021 at 06:48:45PM +0100, Klaus Ethgen wrote: > > > seting the background (root window) to some image is easy. But is there > > > any way to get the image content on fvwm root window back to an image? > > > > As far as I know the X protocol offers no way to retrieve the > > background pixmap of any window. > > Sad. How are window manager working when they provide transparency? How > does ETerm does it? (however, it doesn't work here)
They tell the X server to do it, mostly by doing alpha blending, I think. X offers no reliable way to get any screen contents other than what you can see. Doing that on the client is also really too slow. Ciao Dominik ^_^ ^_^ -- Dominik Vogt
