node-screenshots
是一个基于XCap的原生的 node.js 截图库,支持 Mac、Windows 和 Linux 系统,且无需任何依赖。 支持截图与视频录制(待实现)。
English | 简体中文
操作系统 | node16 | node18 | node20 |
---|---|---|---|
Windows x64 | ✓ | ✓ | ✓ |
Windows x32 | ✓ | ✓ | ✓ |
Windows arm64 | ✓ | ✓ | ✓ |
macOS x64 | ✓ | ✓ | ✓ |
macOS arm64 | ✓ | ✓ | ✓ |
Linux x64 gnu | ✓ | ✓ | ✓ |
Linux x64 musl | ✓ | ✓ | ✓ |
const fs = require("fs");
const { Monitor } = require("node-screenshots");
let monitor = Monitor.fromPoint(100, 100);
console.log(monitor, monitor.id);
let image = monitor.captureImageSync();
fs.writeFileSync(`${monitor.id}-sync.png`, image.toPngSync());
monitor.captureImage().then((data) => {
console.log(data);
fs.writeFileSync(`${monitor.id}.jpeg`, data.toJpegSync());
});
let monitors = Monitor.all();
monitors.forEach((capturer) => {
console.log({
id: capturer.id,
x: capturer.x,
y: capturer.y,
width: capturer.width,
height: capturer.height,
rotation: capturer.rotation,
scaleFactor: capturer.scaleFactor,
isPrimary: capturer.isPrimary,
});
});
const fs = require("fs");
const { Window } = require("node-screenshots");
let windows = Window.all();
windows.forEach((item) => {
console.log({
id: item.id,
x: item.x,
y: item.y,
width: item.width,
height: item.height,
rotation: item.rotation,
scaleFactor: item.scaleFactor,
isPrimary: item.isPrimary,
});
let image = item.captureImageSync();
fs.writeFileSync(`${item.id}-sync.bmp`, image.toBmpSync());
item.captureImage().then(async (data) => {
console.log(data);
let newImage = await data.crop(10, 10, 10, 10);
fs.writeFileSync(`${item.id}.png`, await newImage.toPng());
});
});
完整的 TypeScript 类型定义:index.d.ts
static all(): Array<Monitor>
:获取所有监视器static fromPoint(x: number, y: number): Monitor | null
:根据指定的坐标获取监视器captureImageSync(): Image
:同步捕获图像captureImage(): Promise<Image>
:异步捕获图像
static all(): Array<Window>
:获取所有窗口captureImageSync(): Image
:同步捕获图像captureImage(): Promise<Image>
:异步捕获图像
cropSync(x: number, y: number, width: number, height: number): Image
:同步裁剪图像crop(x: number, y: number, width: number, height: number): Promise<Image>
:异步裁剪图像toPngSync(copyOutputData?: boolean | undefined | null): Buffer
:同步转换为 PNG 格式toPng(copyOutputData?: boolean | undefined | null): Promise<Buffer>
:异步转换为 PNG 格式toJpegSync(copyOutputData?: boolean | undefined | null): Buffer
:同步转换为 JPEG 格式toJpeg(copyOutputData?: boolean | undefined | null): Promise<Buffer>
:异步转换为 JPEG 格式toBmpSync(copyOutputData?: boolean | undefined | null): Buffer
:同步转换为 BMP 格式toBmp(copyOutputData?: boolean | undefined | null): Promise<Buffer>
:异步转换为 BMP 格式toRawSync(copyOutputData?: boolean | undefined | null): Buffer
:同步转换为原始格式(RGBA 数据)toRaw(copyOutputData?: boolean | undefined | null): Promise<Buffer>
:异步转换为原始格式(RGBA 数据)
copyOutputData
: electron 中传递传递相关参数,否则 electron 会崩溃,nodejs 不传或者传递 false,性能会更好,详细信息参考 napi-rs/napi-rs#1346
在 Linux 上,你需要安装 libxcb
、libxrandr
和 dbus
。
Debian / Ubuntu:
apt-get install libxcb1 libxrandr2 libdbus-1-3
Alpine:
apk add libxcb libxrandr dbus
- xcap - XCap 是一个使用 Rust 编写的跨平台的屏幕捕获库