# screenshots
A cross-platform screenshots library for MacOS、Windows、Linux(X11、wayland).
## example
```rust
use screenshots::Screen;
use std::{fs, time::Instant};
fn main() {
let start = Instant::now();
let screens = Screen::all().unwrap();
for screen in screens {
println!("capturer {:?}", screen);
let mut image = screen.capture().unwrap();
let mut buffer = image.buffer();
fs::write(format!("target/{}.png", screen.display_info.id), &buffer).unwrap();
image = screen.capture_area(300, 300, 300, 300).unwrap();
buffer = image.buffer();
fs::write(format!("target/{}-2.png", screen.display_info.id), &buffer).unwrap();
}
let screen = Screen::from_point(100, 100).unwrap();
println!("capturer {:?}", screen);
let image = screen.capture_area(300, 300, 300, 300).unwrap();
let buffer = image.buffer();
fs::write("target/capture_display_with_point.png", &buffer).unwrap();
println!("运行耗时: {:?}", start.elapsed());
}
```
## API
### `Screen`: Screen capturer
- `Screen::new(display_info)`: Get screen from [display info](https://docs.rs/display-info/latest/display_info/struct.DisplayInfo.html), return `Option<Screen>`.
- `Screen::all()`: Get all screen, return `Vec<Screen>`.
- `Screen::from_point(x, y)`: Get screen from point, return `Option<Screen>`.
- `screen.capture()`: capture screen screenshot [image](https://docs.rs/screenshots/latest/screenshots/struct.Image.html), return `Option<Image>`.
- `screen.capture_area(x, y, width, height)`: Capture the current screen the designated area, return `Option<Image>`.
### `Image`: Screen screenshot image
- `Image::new(width, height, buffer)`: Get image from width、height and rgba buffer, return `Image`.
- `Image::from_bgra(width, height, buffer)`: Get image from width、height and bgra buffer, return `Result<Image, EncodingError>`.
- `image.width()`: Get image width, return `u32`.
- `image.height()`: Get image height, return `u32`.
- `image.buffer()`: Get image buffer, return `Vec<u8>`.
## Linux requirements
On Linux, you need to install `libxcb`、`libxrandr`、`dbus`
Debian/Ubuntu:
```sh
apt-get install libxcb1 libxrandr2 libdbus-1-3
```
Alpine:
```sh
apk add libxcb libxrandr dbus
```