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Undo problem
(09-23-2020, 10:41 AM)Zubersoft Wrote: That's probably due to the special mode that is used when annotating that allows you to write in real-time with the stylus. That mode basically disables the screen refresh (so nothing on the screen will update regardless of what the app is doing), but flips the pixels under the stylus to make it appear like you are drawing with no delay. The problem is that if I do something like update the state of undo/redo, that won't show up while that mode is active. Onyx's library does not make it easy to just update certain parts of the screen, and in fact, when I've tried to create workarounds to handle these issues, their library can often crash the device, requiring a reboot. 

If you prefer, you can tap the circle at the top left and then tap "Stylus Mode" to stop that special drawing mode. You will then notice the increased latency while drawing, but none of those other issues will be present. I will continue to work to improve the experience with the stylus by leveraging Boox's library, but unfortunately their SDK is lacking in many ways and has caused instability on many devices. 

As a side note, disabling "Draw highlights behind content" is a good idea if you are encountering any kinds of performance problems. That feature requires a lot of extra processing and it doesn't work that well on the Boox. Hopefully you aren't relying on highlight annotations on an e-ink screen anyways...



Disabling stylus mode only makes the writing slow as expected but the problem of undoing persists regardless.  I'll shoot a small video and PM you.
Regarding the highlights, "Draw highlights behind content" is already disabled. I use the highlight tool to 'erase' or hide unwanted original fingerings present on the scanned pdf and then I write my fingerings or notes on top.
I suppose I could use the pen in rectangle mode with fill in white to accomplish the same but it would mean that I need to constantly change from freeform in black to rectangle in white ...
Onyx Boox Max Lumi 13.3 -Android 10
Dell Latittude 5290 2-in1 (Win 11)
Donner BT pedal
Victoria, BC, Canada - PST (UTC-8)

Messages In This Thread
Undo problem - by palosanto - 09-23-2020, 10:29 AM
RE: Undo problem - by Zubersoft - 09-23-2020, 10:41 AM
RE: Undo problem - by palosanto - 09-23-2020, 11:24 AM
RE: Undo problem - by Zubersoft - 09-23-2020, 12:20 PM
RE: Undo problem - by palosanto - 09-23-2020, 12:33 PM
RE: Undo problem - by Zubersoft - 09-23-2020, 12:59 PM
RE: Undo problem - by palosanto - 09-23-2020, 01:01 PM
RE: Undo problem - by Zubersoft - 09-23-2020, 04:39 PM

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