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Print Screen
Print Screen
Print Screen
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A 104-key PC US English keyboard layout with Print Scrn circled

Print Screen (often abbreviated Print Scrn, Prnt Scrn, Prnt Scr, Prt Scrn, Prt Scn, Prt Scr, Prt Sc, Pr Sc, or PS) is a key present on most PC keyboards. It is typically situated in the same section as the break key and scroll lock key. The print screen may share the same key as system request.

Original use

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Under command-line based operating systems such as MS-DOS, this key causes the contents of the current text mode screen memory buffer to be copied to the standard printer port, usually LPT1. In essence, whatever is currently on the screen when the key is pressed will be printed. Pressing the Ctrl key in combination with Prt Sc turns on and off the "printer echo" feature. When echo is in effect, any conventional text output to the screen will be copied ("echoed") to the printer. There is also a Unicode character for print screen, U+2399 ⎙ PRINT SCREEN SYMBOL.

Modern use

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Newer-generation operating systems using a graphical interface tend to save a bitmap image of the current screen, or screenshot, to their clipboard or comparable storage area. Some shells allow modification of the exact behavior using modifier keys such as the control key.

Traditionally, in Microsoft Windows, pressing Prt Sc will capture the entire screen,[1] while pressing the Alt key in combination with Prt Sc will capture the currently selected window.[1] The captured image can then be pasted into an editing program such as a graphics program or even a word processor. Pressing Prt Sc with both the left Alt key and left ⇧ Shift pressed turns on a high contrast mode (this keyboard shortcut can be turned off by the user).[2] Since Windows 8, pressing the ⊞ Win key in combination with Prt Sc (and optionally in addition to the Alt key) will save the captured image to disk (the default pictures location).[3] This behavior is therefore backward compatible with users who learned Print Screen actions under operating systems such as MS-DOS. In Windows 10, the Prt Sc key can be configured to open the 'New' function of the Snip & Sketch tool. This allows the user to take a full screen, specific window, or defined area screenshot and copy it to clipboard. This behaviour can be enabled by going to Snip & Sketch, accessing Settings via the menu and enabling the 'Use the PrtScn button to open screen snipping'. In Windows 11, the behaviour of pressing the Prt Sc key is now pre-configured to open the 'New' function of the Snipping Tool as of 2023.[4]

In KDE and GNOME, very similar shortcuts are available, which open a screenshot tool (Spectacle[5] or GNOME Screenshot respectively), giving options to save the screenshot, plus more options like manually picking a specific window, screen area, using a timeout, etc. Sending the image to many services (KDE), or even screen recording (GNOME), is built-in too.[6]

Macintosh does not use a print screen key; instead, key combinations are used that start with ⌘ Cmd+⇧ Shift. These key combinations are used to provide more functionality including the ability to select screen objects. ⌘ Cmd+⇧ Shift+3 captures the whole screen, while ⌘ Cmd+⇧ Shift+4 allows for part of the screen to be selected. The standard print screen functions described above save the image to the desktop. However, using any of the key sequences described above, but additionally pressing the Ctrl will modify the behavior to copy the image to the system clipboard instead.

Notable keyboards

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On the IBM Model F keyboard, the key is labeled PrtSc and is located under ↵ Enter. On the IBM Model M, it is located next to F12 and is labeled Print Screen.

References

[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Print Screen

View on Grokipedia
from Grokipedia
The Print Screen key, commonly abbreviated as PrtScn, is a standard found on most keyboards, primarily used to capture a of the entire screen or an active and copy it to the system's for pasting into applications like editors or documents. This functionality originated in the early with the introduction of PC-compatible keyboards, where pressing the key in environments would dump the text contents of the screen's memory buffer directly to a connected printer via the parallel port, effectively "printing" the visible text output. Over time, as graphical user interfaces became prevalent, the key's role evolved from text printing to graphical screen capture, reflecting the shift away from direct printer output toward digital clipboard storage in or formats. In modern Microsoft Windows systems, by default since version 22H2, the standalone Print Screen key opens the ; it can be configured to capture the full screen to the instead. Modifier combinations enhance its utility: Alt + Print Screen captures only the active window, + Print Screen automatically saves a full-screen screenshot as a PNG file in the Pictures/Screenshots folder, and Windows key + Shift + S invokes the for selective area captures. On laptops or compact keyboards lacking a dedicated key, the function often requires pressing Fn in combination with another key, such as Fn + Insert. Since version 22H2, a configurable setting allows the standalone Print Screen key to directly open the overlay for more flexible captures, bypassing the traditional copy unless disabled. The key's design traces back to the PC's 83-key keyboard layout from 1981, where it shared functionality with the (SysRq) key for low-level OS interactions, and it has remained a fixture on PC keyboards despite the rise of dedicated screenshot tools in operating systems like macOS (which uses Command + Shift + 3/4) or distributions. Today, while less essential due to built-in utilities and third-party software, the key continues to serve as a quick, hardware-based method for screen documentation in productivity, troubleshooting, and workflows across Windows ecosystems.

Origins and History

Invention and Early Adoption

The Print Screen key was introduced by with the launch of the Personal Computer (model 5150) in August 1981, featuring as part of the standard 83-key design. Positioned among the upper-right control keys, it served as a dedicated hardware feature to facilitate the capture and output of screen contents directly to a connected printer, addressing the need for hard-copy documentation in an era dominated by text-based interfaces and limited storage options. This innovation emerged during the early development of personal computing hardware, where engineers integrated it into the keyboard's capacitive switch mechanism to streamline interactions with the system's basic input/output system (). The key's primary purpose was to dump the contents of the video buffer—encompassing text in alphanumeric mode or basic graphics—to a parallel port-connected printer, such as the prevalent dot-matrix models like the IBM 5152 Graphics Printer. In practice, pressing Shift + PrtSc invoked the function, which saved the current cursor position, transferred the screen data character by character or pixel by pixel to the printer, and restored the cursor afterward, all while enabling interrupts to prevent system hangs. This capability was particularly valuable for overcoming the constraints of early monochrome or low-resolution displays, like the IBM Monochrome Display, by providing a direct path to physical output without relying on cumbersome file saves or external software, thus supporting routine tasks in command-line environments. Early adoption occurred alongside the rollout of (initially PC-DOS 1.0 in 1981), where the key integrated seamlessly with the operating system's layer to handle independently of application-specific commands. It found practical use in nascent word processing applications, such as , allowing users to quickly print the visible document view for review or archival purposes on thermal or impact printers. In programming and scenarios, developers leveraged it to capture console output or error messages from or assembly code sessions, enabling printed logs for analysis without halting execution or resorting to manual transcription. The feature's status was tracked in the data area at memory location 0040:0062h, with flags indicating success, ongoing operation, or errors like printer offline. Technically, the key generated scan code 37h (make) or B7h (break) and triggered interrupt INT 05h, which vectored to the ROM routine at F000:FF54 for executing the print operation. This interrupt-based mechanism ensured compatibility across early compatible systems, including the PC XT (1983), and persisted into enhanced keyboards like the buckling-spring Model M introduced in 1984 for the PC/AT, where it retained the same core functionality while adding dual-labeling as PrtSc/SysRq. By the mid-1980s, widespread availability of the Model M solidified the key's presence in and technical setups, promoting its role in daily workflows before graphical user interfaces diminished direct printer reliance.

Evolution in Computing Eras

In the early 1990s, the Print Screen key evolved from its original role in text-based systems, where it triggered direct printer output, to a more versatile function in graphical environments. With the release of in 1990, the key began capturing the entire screen as a image to the rather than sending data to a printer, enabling users to paste the capture into graphics applications such as for editing and saving. This shift marked a pivotal adaptation to graphical user interfaces (GUIs), prioritizing digital manipulation over physical printing. In , the combination Alt + Print Screen captured only the active window to the , while the standard Print Screen handled the full screen; these features supported the growing complexity of windowed applications and were further refined in (1992). These changes were solidified in Windows 95 (1995), which integrated the functionality seamlessly into its 32-bit architecture, making screen capture a standard feature for troubleshooting and documentation in the expanding personal computing landscape. The 2000s brought challenges from hardware advancements, particularly multi-monitor setups and higher resolutions. Starting with Windows XP in 2001, the Print Screen key was updated to capture content across all connected displays by default, accommodating the rise of extended desktops common in professional environments. High-resolution support was similarly enhanced, ensuring captures scaled appropriately without distortion, though users often needed third-party tools for selective monitor grabs. From the onward, the influence of mobile and touch-based reshaped the key's ecosystem. Virtual keyboards on tablets and hybrid devices began incorporating dedicated screenshot buttons or gestures, mirroring desktop behaviors to unify user experiences across platforms; for instance, integrated screenshot capture via hardware buttons in 2008, with Android following in 2011. Concurrently, standardization efforts for USB and keyboards ensured the Print Screen key's consistent mapping under HID protocols, maintaining compatibility as wireless peripherals proliferated. Key milestones underscore this progression: Windows 95's 1995 integration embedded the feature into mainstream GUIs; macOS equivalents, such as Command-Shift-3 for full-screen captures, emerged with Mac OS X in 2001, providing Apple users with analogous clipboard-based functionality. In Linux, support for Print Screen key events refined over time, with tools like xev—introduced in early X11 distributions—enabling developers to monitor and customize key inputs for precise GUI handling.

Technical Functionality

Core Mechanism and Key Behavior

The Print Screen key, also known as PrtScn, generates a specific hardware scan code when pressed, which is transmitted to the operating system via the keyboard controller. In the PS/2 interface, commonly used for traditional keyboards, the make code for the Print Screen key is E0 37, while the break code is E0 B7, indicating the key press and release , respectively. For modern USB () keyboards, the Print Screen key corresponds to usage identifier 0x46 in the HID Usage Tables, categorized under keyboard keys for system requests like SysRq. These scan are sent over the interface after the keyboard controller processes the mechanical key press. Upon receiving the scan code, the keyboard controller raises an —typically IRQ 1 in x86-based systems—to notify the CPU of the input event. The operating system's , part of the keyboard driver, decodes the scan code and identifies it as the Print Screen key. In response, the OS initiates a low-level capture of the current display content from the , which represents the video memory holding the pixel data of the screen. This captured data is then converted into a format and copied to the system clipboard for subsequent pasting into applications. The core behavior of the Print Screen key varies with modifier keys to target different capture scopes. Pressing PrtScn standalone captures the entire screen as a full to the . Combining it with the (Alt + PrtScn) restricts the capture to the active only, excluding desktop elements like the . In text-based or legacy modes, the key may emulate printing behaviors from early eras. Error conditions can disrupt the process at hardware or software levels. If the keyboard hardware fails to transmit the scan —due to a faulty key or controller—the may not trigger, resulting in no action and potentially a system beep if configured. In environments lacking support, such as minimal kernels or certain embedded systems, the capture operation fails silently without storing the . Within s, the Print Screen key often captures the host machine's screen instead of the guest's unless virtual machine software is configured to passthrough the key event, potentially leading to unexpected results or requiring manual intervention via host tools.

Operating System Variations

In Windows, the Print Screen (PrtScn) key traditionally captures a image of the entire screen and copies it to the , allowing users to paste it into applications like or Word for further editing or saving. Pressing Alt + PrtScn limits the capture to the active only, also copying it to the . The , introduced in (2007) and included in (2009), is a built-in utility for capturing rectangular, free-form, , or full-screen snippets. In and later versions, introduced in 2015, the combination + Shift + S activates a region-selection overlay for targeted captures directly to the , enhancing flexibility without altering the standalone PrtScn function. As of version 22H2 in 2023, pressing PrtScn by default opens the for immediate capture options, but this can be disabled via Settings > Accessibility > Keyboard to restore the traditional behavior. Additionally, + PrtScn saves a full-screen capture as a file to the Pictures > Screenshots folder. macOS lacks a dedicated Print Screen key on standard , instead relying on multi-key combinations for functionality, with the F13 key on extended keyboards serving as a functional equivalent in some configurations for third-party remapping. The primary shortcut, Command + Shift + 3, captures the entire screen and saves it as a PNG file on the desktop by default, a behavior established since in 2001. For partial captures, Command + Shift + 4 allows selection of a screen , saving the result to the desktop, while Command + Shift + 4 followed by targets a specific . Since macOS Mojave in 2018, Command + Shift + 5 provides a control center for or screen recordings, with options to copy to clipboard or set custom save locations, though the desktop default persists for basic shortcuts. These captures include the cursor by default unless modified in system preferences. On distributions, Print Screen behavior varies by and is highly configurable, with no universal standard but common reliance on the key for full-screen captures. In , pressing PrtScn invokes gnome-screenshot to capture the entire screen and prompt for saving, typically as in the user's Pictures folder, while Shift + PrtScn enables region selection. Plasma uses the tool, where PrtScn captures the full screen to or file, with options for delay, annotations, and copying via Meta + PrtScn. Other environments like or default to similar full-screen grabs via tools such as xfce4-screenshooter or gnome-screenshot, saving to ~/Pictures. Key bindings can be customized using xmodmap for X11 sessions or desktop-specific settings; for instance, in modern , extensions or allow remapping PrtScn to alternative actions. In console mode without a graphical environment, captures are possible using utilities like fbgrab, which reads from /dev/fb0 to produce a image of the text-based display. Cross-platform applications and browsers may override native Print Screen handling; for example, in Chrome OS, which lacks a PrtScn key, the equivalent Ctrl + Show Windows (or Ctrl + F5) captures the full screen to the Downloads folder, while Ctrl + Shift + Show Windows selects a region. This ensures consistent behavior in web-based environments across operating systems, though OS-level captures take precedence in native contexts.

Modern Usage and Extensions

Integration with Screenshot Tools

In , the Print Screen key integrates seamlessly with built-in screenshot utilities to enhance capture and editing workflows. On Windows, the (formerly Snip & Sketch, introduced in the October 2018 update for Windows 10 version 1809) can be automatically invoked using the Win+Shift+S shortcut, which dims the screen and allows rectangular, freeform, window, or full-screen captures, followed by immediate annotations such as cropping, drawing, or text addition directly in the tool. In , the Print Screen key itself is configured by default to open the for quick access, bypassing the traditional clipboard copy to enable on-the-fly editing and sharing. As of May 2025, the received an update introducing the "perfect screenshot" feature, which uses AI for automatic enhancements like object removal and background generation, further integrating with Print Screen workflows. Similarly, on macOS, the app, debuted in on September 24, 2018, uses the Command+Shift+5 shortcut—functionally analogous to Print Screen behaviors—to launch a toolbar for capturing selected areas, windows, or the full screen, with built-in markup tools for annotations like shapes, text, and highlights before saving or copying. Third-party screenshot tools often extend or override the Print Screen key to provide advanced functionality while maintaining compatibility with native behaviors. Greenshot, a free open-source application first developed around 2007, registers the Print Screen key by default to initiate a selection capture, allowing users to annotate, to formats like or PDF, or upload directly to services such as without altering core OS operations. Lightshot, released in its initial stable form in 2014, similarly hijacks the Print Screen hotkey (after disabling conflicting OS settings) to enable quick area selection, inline editing with colors and text, and one-click uploads to its service for sharing links, streamlining workflows for remote . ShareX, an open-source tool originating in 2007, supports remapping Print Screen to custom actions like or full-screen capture, with robust post-processing options including batch image resizing, watermarking, and automated uploads to over 80 destinations. These integrations facilitate efficient workflows, such as automatic saving and syncing of captures to . In Windows, screenshots taken via Print Screen or the are stored in the Pictures/Screenshots folder, which integrates with for seamless backup and access across devices when folder syncing is enabled, ensuring captures are versioned and shareable without manual intervention. Tools like further enhance this by supporting , where multiple Print Screen-initiated captures can be queued for simultaneous editing, format conversion, or distribution to FTP servers or clients. For accessibility, Print Screen integrations include support for screen readers and scripting to aid users with visual impairments. The NVDA screen reader, a free tool for Windows, allows Print Screen captures to be copied to the clipboard and announced upon pasting into compatible apps, with add-ons like the Screenshots Wizard enabling voice-guided selection of capture areas (e.g., full screen or specific objects) and verbal confirmation of the action's completion. Additionally, automation scripts via can remap Print Screen to accessibility-friendly sequences, such as invoking the with audio cues or integrating with voice commands for hands-free operation.

Advanced Features and Limitations

In modern multi-monitor configurations, the Print Screen key captures the entire extended desktop across all displays, a capability that has been standard in Windows since early multi-monitor support, such as in (2001). This allows users to obtain a comprehensive of their workspace without manual selection, but it can result in large image files and unintended inclusion of secondary screens. However, per-monitor DPI scaling introduces challenges; when displays have different scaling factors, such as 100% on one monitor and 125% on another, the captured image may appear distorted or incorrectly sized, as the tool fails to properly account for varying resolutions and zoom levels. For handling dynamic content like videos or animations, the traditional Print Screen function remains limited to static images, capturing only a single frame and thus unsuitable for recording motion or time-based interactions. This is extended through the Xbox Game Bar, introduced in in 2016 and available in , activated by pressing + G, which enables screen recording alongside static captures, microphone audio, and basic editing tools directly within the OS. This integration addresses the static nature of Print Screen by providing a seamless workflow for documentation, though it requires additional setup for longer recordings and does not retroactively enhance the core key's functionality. Security restrictions often limit Print Screen's utility in protected environments to prevent data leakage. In secure applications such as , developers implement DRM or flags to block screenshots, resulting in blacked-out or empty captures to safeguard sensitive information like account details. Similarly, in virtual machines and remote desktop sessions, features like Azure Virtual Desktop's screen capture protection, available since version 22H2, automatically disable or obscure captures on the client side, enhancing by preventing unauthorized sharing of remote content during screen shares or operations. Looking ahead, future developments in screenshot functionality emphasize AI-assisted enhancements and alternative input methods. Tools like Copilot integrate AI for automatic cropping and editing of captured images, suggesting trends toward intelligent post-capture adjustments such as auto-framing content in 2025 updates. On hybrid devices like , using the Surface Pen (such as double-pressing its top button) offers alternatives to physical keys, enabling quick captures without keyboard reliance and adapting to tablet-laptop transitions.

Keyboard Design and Variations

Standard Layout Positions

In standard keyboard layouts for full-size PC keyboards, the Print Screen key is positioned in the upper-right section, adjacent to the and Pause/Break keys, typically to the right of the F12 key and above the in the navigation cluster. This placement adheres to the 101-key standard established in the , which evolved into the 104-key layout in the mid-1990s with the addition of Windows and Menu keys, without altering the Print Screen position. In ANSI () layouts, which feature a horizontal Enter key and longer left Shift, the Print Screen key remains in this top-right cluster, consistent with ISO () layouts that introduce an L-shaped but preserve the same arrangement for control keys like Print Screen. On compact keyboards, such as 60% layouts that omit the function row and navigation cluster to reduce size, the dedicated Print Screen key is often absent, requiring remapping through function layer combinations like Fn + another key to access its functionality. This design choice prioritizes portability while maintaining compatibility via software or layers. Ergonomic aspects of the Print Screen key include a standard 1-unit width (approximately 19 mm) and typical key travel distance of 3-4 mm on mechanical or keyboards, ensuring without excessive strain during infrequent use. Labeling variations commonly include "PrtSc," "PrtScn," "Print Screen," or dual "PrtSc/SysRq" to denote its secondary role, with all implementations complying with USB (HID) specifications that assign it usage code 0x46 in the keyboard page (0x07). For international adaptations, non-English layouts like French maintain the Print Screen key in the identical upper-right position as , as the layout primarily affects alphanumeric keys while standardizing placement across PC architectures for cross-compatibility.

Notable and Specialized Keyboards

The , first produced in 1984 for electronic typewriters and entering mass production for personal computers in 1985, featured a dedicated Print Screen (PrtScn) key in its PC-compatible variants, often shared with SysRq functionality. This layout helped standardize the key's position in professional environments, complemented by the innovative buckling spring mechanism that provided tactile feedback and auditory confirmation for key presses. Renowned for its robust construction, the Model M could withstand over 50 million keystrokes per key and extreme durability tests, such as surviving a 6-foot drop, making it a benchmark for reliability in and computing tasks where captures via PrtScn were essential for documentation. In gaming keyboards, manufacturers like Razer and Corsair have enhanced the Print Screen key's utility through advanced macro programming, allowing users to customize it for rapid in-game captures without interrupting gameplay. For instance, the Razer Huntsman series, launched in 2018, integrates with Razer Synapse software to assign macros to the PrtScn key or nearby keys, enabling sequences like combining it with for instant screenshots or binding it to game-specific commands for overlay captures in titles such as first-person shooters. Similarly, Corsair's K-series keyboards, including models with dedicated G-keys, support iCUE software for programming the PrtScn key into macros that simulate complex shortcuts, such as Alt + PrtScn for active window captures, streamlining content creation during live streams or competitive play. These features leverage optical or mechanical switches for low-latency execution, reducing input lag to under 1 millisecond in macro triggers. Compact and laptop-oriented keyboards often omit the dedicated Print Screen key to save space, relying instead on function key combinations, as seen in Apple's Magic Keyboard lineup. The wireless Magic Keyboard, introduced in various iterations since 2015, lacks a physical PrtScn key entirely, directing users to macOS-native shortcuts like Command + Shift + 3 for full-screen captures or Command + Shift + 4 for selections, with F-keys serving and system controls by default unless remapped via . In contrast, the Microsoft Surface Type Cover, released in 2015 for as an attachable accessory, uses physical scissor-switch keys and supports PrtScn emulation via Fn + Windows + Spacebar for broader compatibility, alongside integrations like Windows + Shift + S for the . These designs prioritize portability and gesture-based interactions over traditional key layouts. Specialized keyboards for professional workstations and retro applications further illustrate variations in Print Screen implementation. Older keyboards, such as the Type 5 and Type 6 models used in Unix-based CAD environments during the and , featured extended layouts with PrtScn positioned among function keys to facilitate quick captures of diagrams and 3D renders in software like tools, supporting high-resolution monochrome or color displays common in CAD/CAM workflows. For retro gaming enthusiasts, USB adapters enable the use of legacy keyboards with authentic PrtScn keys on modern systems; devices like PS/2-to-USB converters preserve the original key behavior for emulating classic DOS games or capturing pixel-art screenshots, ensuring compatibility without software overhead in setups running Windows or . These adapters typically handle scancode mapping to maintain the key's interrupt-driven functionality from PC-era hardware. Modern wireless and low-profile PC keyboards, such as the MX Keys (released 2019), continue to include the Print Screen key in standard positions or via Fn combinations for compatibility across Windows ecosystems.

References

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