Hi all,

I have a question about the update procedure of the u8g2 library.
When you use the full buffer mode (f extension in constructor), can it be configured to only update the pixels/bytes which are changed since last time? For example:
I have some text down in the display and an audio level meter in the top. The level meter should be updated very fast to give a smooth response for the user. If you need to redraw the entire display for every audio metering update, then the meter will behave too slow... :(. Therefore i think it is possible to only update the region / area which is changed. In other library which i used in the past ( RAMTEX - https://www.ramtex.dk ), they call this the 'dirty area'. It is very very fast! because if you change only a specific item/widget on the screen it updates that area!. The dirty area is a rectangle with (x0,y0, x1,y1) which automatically scales when you call the library functions for writing text, or drawing lines. When you call the send-buffer() function it should send the data bytes which are surrounded by the dirty area. What do you think about this feature?

Kind Regards,

Corné Doggen