How to use LvGL Graphics Library | Seeed Studio Wiki

[giscus[bot]]

How to use LvGL Graphics Library | Seeed Studio Wiki

In this tutorial, we will teach you how to use the LvGL (Light and Versatile

https://wiki.seeedstudio.com/Wio-Terminal-LCD-Graphics/

[zol123]

I would like to remind you that the basic TFT_eSPI.h library has advanced graphics functions such as:
// Read the colour of a pixel at x,y and return value in 565 format
uint16_t readPixel(int32_t x0, int32_t y0);

// The next functions can be used as a pair to copy screen blocks (or horizontal/vertical lines) to another location
// Read a block of pixels to a data buffer, buffer is 16 bit and the array size must be at least w * h   
void readRect(int32_t x0, int32_t y0, int32_t w, int32_t h, uint16_t *data);
// Write a block of pixels to the screen
void pushRect(int32_t x0, int32_t y0, int32_t w, int32_t h, uint16_t *data);

pair readRect / pushRect can be used for graphics scrolling.....
and more..