How to Capture a Screenshot in HTML Using ReactJS and html2canvas Library

 

Photo by Tuherdias Awang: https://www.pexels.com/photo/scenic-photo-of-turquoise-sea-and-beach-16327792/

Here's a step-by-step guide on how to capture a screenshot in HTML using ReactJS:

1. Install the html2canvas package using npm.

npm install html2canvas --save

2. Import the html2canvas library in the component where you want to capture the screenshot.

javascript
import html2canvas from 'html2canvas';

3. Create an HTML button or link to trigger the screenshot capture.

<button onClick={this.captureScreenshot}>Capture Screenshot</button>

4. In the captureScreenshot method, use the html2canvas library to create a canvas element with the same dimensions as the window and draw the contents of the window onto the canvas.

javascript
captureScreenshot() {
  const element = document.body;
  html2canvas(element).then((canvas) => {
    // rest of the method
  });
}

5. Convert the canvas element to an image by calling its toDataURL() method.

const dataURL = canvas.toDataURL();

6. Create a new image element and set its src attribute to the data URL.

const img = new Image();
img.src = dataURL;

7. Finally, add the image element to the DOM to display the captured screenshot.

css
document.body.appendChild(img);

That's it! With these steps, you can capture a screenshot of the current window and display it on the page using ReactJS and the html2canvas library.