A virtual key code, also known as a VK code or virtual keycode, is a numeric value that represents a specific key on a computer keyboard. It is a standardized system employed by operating systems to facilitate the identification and processing of keyboard input. Each physical key on the keyboard has an associated virtual key code that is sent to the operating system when the key is pressed or released.
Virtual key codes are used to capture and interpret keyboard input in a software environment. They allow applications and operating systems to recognize and respond to user keystrokes, enabling the execution of specific functions or commands. These codes are distinct from character codes, which represent the actual characters or symbols associated with each key.
The virtual key code system includes a wide range of key identifiers for specialized keys, such as function keys, control keys, modifier keys, arrow keys, and others. The codes are typically represented as hexadecimal values, making them machine-readable and compatible across different platforms and programming languages.
Developers and programmers utilize virtual key codes to create keyboard events, implement keyboard shortcuts, or design custom keyboard layouts. These codes play a crucial role in enabling keyboard interaction in various software applications, including video games, graphical user interfaces, text editors, and more.
