How does Huawei scroll to intercept the chat records of pictures?

Take Huawei nova 7 5G mobile phone as an example:

1. After the screenshot is completed according to the following screenshot method, a thumbnail will appear in the lower left corner. Slide the thumbnail down to continue scrolling the truncated screen.

(1) Steering knuckle capture screen:

A. go to settings > accessibility > quick start and gestures > screen capture, and make sure that the knuckle screen capture switch is turned on.

B. Double-click the screen with a single finger joint with a little force and continuous speed to capture the complete screen.

(2) Use key combination to capture the screen.

Press the power button and the volume button at the same time to capture the full screen.

(3) Use the shortcut switch to capture the screen.

Slide out the notification panel from the status bar at the top of the screen, continue to slide out the whole menu, and click Scissorhands to grab the whole screen.

(4) Use three-finger sliding screen capture.

A. go to settings > accessibility > quick start and gesture > screen capture, and make sure that the three-finger sliding screen capture switch is turned on.

B Use three fingers to slide down from the middle of the screen to capture the whole screen.

2. Use knuckles gesture to scroll the truncated figure.

(1) Tap the screen with one finger joint and keep the finger joint on the screen. Draw "S" with a little force, and the screen will automatically scroll down the screenshot.

(2) In the process of scrolling, click the scrolling area to stop the screen capture.