Description
I am developing an application for a Raspberri Pi that, among many other things, takes a picture and shows it on the screen.
The picture is acquired by a PiCamera, and stored in the local SD card as an jpg file.
I would like to show this picture on the screen.
So far all the examples I have found are old, the links to the code ar broken, or do not explain the procedure well enough.
Also, I cannot use the online converter, as this is too cumbersome when I am taking new pictures.
What MCU/Processor/Board and compiler are you using?
Raspberry Pi 3
What LVGL version are you using?
Latest, I believe, 9.2
What do you want to achieve?
I would like to show this picture on the screen. I am currently trying with a file of known size, named “490x300.jpg”.
I’d be very grateful for a code snippet that works for the latest version, please.
I have seen many posts asking for somthing similar - most of these posts go nowhere. So such a code snippet might help many users.
What have you tried so far?
std::string source = "photos\\490x300.jpg";
std::cout << "Showing last file: " << source << std::endl; // Debug
lv_img_set_src(img,(const void*)source.c_str());
lv_obj_set_width(img, 490);
lv_obj_set_height(img, 300);
lv_obj_center(img);
It shows nothing on the screen.