![]() ![]() Neither ZDNET nor the author are compensated for these independent reviews. This helps support our work, but does not affect what we cover or how, and it does not affect the price you pay. When you click through from our site to a retailer and buy a product or service, we may earn affiliate commissions. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. ^ "Ask the Law Geek: Is publishing screenshots Fair Use?".^ "Copyright in screenshots? Who owns it?".FAQ about Copyright - Chilling Effects Clearinghouse. ^ "Question: What are screenshots, and is using them copyright infringement?".^ "Use Snipping Tool to capture screenshots".^ "macos - Is it possible to take a screenshot in vector format?".^ "Details of package gtk-vector-screenshot in stretch"."Representing Computer-Aided Design: Screenshots and the Interactive Computer circa 1960". ^ Matthew Allen (November–December 2016).or fair dealing and similar laws in other countries. Regardless of copyright, screenshots may still be legally used under the principle of fair use in the U.S. Some companies believe the use of screenshots is an infringement of copyright on their program, as it is a derivative work of the widgets and other art created for the software. For many cases, high frame rates are needed for a pleasant experience. Though getting faster all the time, ordinary PCs are not yet fast enough to play videos and simultaneously capture them at professional frame rates, i.e. The screen recording capability of some screen capture programs is a time-saving way to create instructions and presentations, but the resulting files are often large.Ī common problem with video recordings is the action jumps, instead of flowing smoothly, due to low frame rate. In Windows XP, this is disabled by opening the Display Properties menu, clicking on the "Settings" tab, clicking, "Advanced", "Troubleshoot", and moving the Hardware Acceleration Slider to "None."įree software media players may also use the overlay but often have a setting to avoid it or have dedicated screenshot functions. Because many computers have no hardware overlay, most programs are built to work without it, just a little slower. One way these images can be captured is to turn off the hardware overlay. Generally, there is no way to extract a computed image back out of the graphics card, though software may exist for special cases or specific video cards. The reason for this is that the graphics are bypassing the normal screen and going to a high-speed graphics processor on the graphics card by using a method called hardware overlay. On Windows systems, screenshots of games and media players sometimes fail, resulting in a blank rectangle. Some web browsers, for example Firefox and Microsoft Edge, have a screenshot tool which can be used to capture a whole web page or part of it.Ĭommon technical issues Hardware overlays In 1988, Polaroid introduced Spectra film with a 9.2 × 7.3 image size more suited to the 4:3 aspect ratio of CRT screens. Polaroid film was popular for capturing screenshots, because of the instant results and close-focusing capability of Polaroid cameras. Screenshot kits were available for standard (film) cameras that included a long antireflective hood to attach between the screen and camera lens, as well as a closeup lens for the camera. Most screenshots are raster images, but some vector-based GUI environments like Cairo are capable of generating vector screenshots. Systems with composite video output could be connected to a VCR, and entire screencasts preserved this way. Some systems had a BSAVE command that could be used to capture the area of memory where screen data was stored, but this required access to a BASIC prompt. ![]() Sometimes text-only screens could be dumped to a text file, but the result would only capture the content of the screen, not the appearance, nor were graphics screens preservable this way. ![]() Through the 1980s, computer operating systems did not universally have built-in functionality for capturing screenshots. The first screenshots were created with the first interactive computers around 1960. Screenshot techniques Digital techniques A screenshot is created by the operating system or software running on the device powering the display.Īdditionally, screenshots can be captured by an external camera, using photography to capture contents on the screen. Digital image output of computer display A screenshot of a computer displayĪ screenshot (also known as screen capture or screen grab) is a digital image that shows the contents of a computer display. ![]()
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