Screenshots
Share and export pdf
For screenshot function, the core version number must be >=3211
Sample code
-- 创建图片控件
img = lvgl.img_create(lvgl.scr_act(), nil)
-- 设置图片显示的图像
lvgl.img_set_src(img, "/lua/test.png")
-- 图片居中
lvgl.obj_align(img, nil, lvgl.ALIGN_CENTER, 0, 0)
--文件路径名只支持bmp
local name = "/sdcard0/1.bmp"
-- 截屏
local ret =disp.screenshots(name, 200, 300, 400, 500)
API
disp.screenshots
| transfer | disp.screenshots(name, x1, x2, y1, y2) |
|---|---|
| Function | Capture a picture of a specified area of the display screen |
| return | 0/-1 success/failure |
| parameter | |
| name | File path name only supports bmp |
| x1 | Horizontal initial value MIPI screen (0-479)/LCD screen (0-239) |
| x2 | Horizontal end value MIPI screen (x1-479)/LCD screen (x1-239) |
| y1 | Vertical initial value MIPI screen (0-853)/LCD screen (0-320) |
| y2 | Vertical end value MIPI screen (y1-853)/LCD screen (y1-321) |
Screenshot effect
See the sample code above for screenshot coordinates. The image is saved to the SD card and a virtual USB flash drive is displayed on the computer.
Test firmware versions and scripts
LuatOS-Air_V3211_RDA8910_RFTLLMPMSPBSDZZ_0xd0000.pac
screenshots.7z
Version customization
For LuatOS-Air versions greater than or equal to V3211, you need to go to the customized firmware web page to generate customized firmware with PB function. Customized firmware address: Customized firmware