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This article mainly introduces the C++ how to achieve screenshot screenshot, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, let the editor take you to understand it.

1. Screenshot tool 1.1 Keyboard screenshot (PrtScn key)

How to use the Print Screen (print screen) key in Microsoft Windows operating system

(1) Print Screen key

After pressing, capture the entire screen to the clipboard. Can be copied to other software, such as system drawing tools, Office Word and so on.

(2) Alt+Print Screen key combination

After pressing, capture the picture of the currently active window to the clipboard.

1.2 win10 comes with screenshot (Win+Shift+S)

After pressing the key combination, use the mouse to draw the rectangular area you want to intercept on the screen and automatically save it to the system clipboard.

1.3 screenshot gadgets included with the system

1.4 ffmpeg

Ffmpeg-I "input video"-fflags nobuffer-t 60-ss 0 "output address"

Description: it means to intercept the input video clips from 0 to 60 seconds and save them to the output address.

-ss n: start time is nth second

-t n: the total duration of the intercepted clips is n seconds

After running, a screenshot will be generated: out1.jpg out2.jpg out3.jpg …

Ffmpeg-I fight.mp4-r 1-t 200-ss 1-f image2 out%d.jpg1.5 ScreenToGif

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