Change only a block of screen with out refresh all screen

[AlirezaAbdiyan]

Hi I want to change a block of screen with out change other block screen in other words I don't want to use u8g.firstPage(); do { .... } while( u8g.nextPage() );

In screen I was show any text or pic and I want add a text to screen with out change or refresh entire screen.(For more speed,...). How do I it? Thanks

[olikraus]

This is not possible with u8glib. U8g2 supports full buffer mode for this purpose.

[AlirezaAbdiyan]

Thanks, I use ks0108 lcd but U8g2 not support this lcd!

[olikraus]

I have an issue for this already: https://github.com/olikraus/u8g2/issues/88

[AlirezaAbdiyan]

OK Thanks