rustdesk/libs/scrap/README.md

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2021-07-29 13:33:26 +08:00
Derived from https://github.com/quadrupleslap/scrap
2021-03-29 15:59:14 +08:00
# scrap
Scrap records your screen! At least it does if you're on Windows, macOS, or Linux.
## Usage
```toml
[dependencies]
scrap = "0.5"
```
Its API is as simple as it gets!
```rust
struct Display; /// A screen.
struct Frame; /// An array of the pixels that were on-screen.
struct Capturer; /// A recording instance.
impl Capturer {
/// Begin recording.
pub fn new(display: Display) -> io::Result<Capturer>;
/// Try to get a frame.
/// Returns WouldBlock if it's not ready yet.
pub fn frame<'a>(&'a mut self) -> io::Result<Frame<'a>>;
pub fn width(&self) -> usize;
pub fn height(&self) -> usize;
}
impl Display {
/// The primary screen.
pub fn primary() -> io::Result<Display>;
/// All the screens.
pub fn all() -> io::Result<Vec<Display>>;
pub fn width(&self) -> usize;
pub fn height(&self) -> usize;
}
impl<'a> ops::Deref for Frame<'a> {
/// A frame is just an array of bytes.
type Target = [u8];
}
```
## The Frame Format
- The frame format is guaranteed to be **packed BGRA**.
- The width and height are guaranteed to remain constant.
- The stride might be greater than the width, and it may also vary between frames.
## System Requirements
OS | Minimum Requirements
--------|---------------------
macOS | macOS 10.8
Linux | XCB + SHM + RandR
Windows | DirectX 11.1