Press PrtScn to capture the full screen to the pasteboard, and you can use the capture window with Alt. There is no response during the crawling process, and Ctrl+V can paste the picture.
PU and PD are keys to move up and down, for example, you can turn pages in a browsing page. In a text editing environment, pressing this keyboard can turn pages backwards. If you have reached the bottom of the document, this key will not work.
I. Turn down the page
Keyboard key, commonly known as down key, is opposite to page up, and its original meaning is down. At present, Microsoft has obtained the patents of "Previous Page" and "Next Page" buttons. The software giant applied in 2005 and was officially approved on August 19, 2008.
American patent. No.7,465,438+05,666 is described as "a method and system for a document viewer to accurately scroll a document, such as scrolling a page, regardless of whether the document is enlarged or not and whether the viewer browses all or part of the page, and can directly switch to the next page." The "inventors" listed in the patent include Timothy Cyrus, Heather Grantham and Joshua Desch.
Second, PrtScn
The screenshot in the Windows interface (capturing and saving the current picture) is the print screen key, also called the "screen copy key". After pressing the screen copy key, the system seems to have no response, but when you press the key, the system has saved the contents of the whole screen in the form of graphics. Press the keyboard shortcut "Ctrl+V" to paste the picture, and finally save it as a graphic file.
If you only want to capture the image of one window, you can click the window you want to capture to make it the current window, and then press Alt+ Copy Screen to paste it into the drawing software, and all the required window images will be cut clearly.
Keyboards usually have their own screen capture keys, which have many names. English names (beginning with Pr): PrScrn, PRTSCS SYSRQ, etc. Chinese names include: screen capture key, screen printing, etc.