Why not do something like wireframe animations to avoid the windows “lurching” when being moved or resized?
Nice idea for a hack! As of Apr/2005 x11vnc by default will apply heuristics to try to guess if a window is being (opaquely) moved or resized. If such a change is detected framebuffer polling and updates will be suspended and only an animated “wireframe” (a rectangle outline drawn where the moved/resized window would be) is shown. When the window move/resize stops, it returns to normal processing: you should only see the window appear in the new position. This spares you from interacting with a “lurching” window between all of the intermediate steps. BTW the lurching is due to slow video card read rates (see here too.) A displacement, even a small one, of a large window requires a non-negligible amount of time, a good fraction of a second, to read in from the hardware framebuffer. Note that Opaque Moves/Resizes must be Enabled by your window manager for -wireframe to do any good. The mode is currently on by default because most people are afflicted with the problem. It can be disabled
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