- accelerator
  
- See hotkey.
- active window
    
- The window that currently has focus.
	
- backdrop
  
- An image that's displayed as a background on your screen.
  
- balloon
    
- A small box that pops up to define or explain part of the
        user interface. A balloon is displayed when the pointer pauses
        over a widget.
- bitmap
  
- A color picture consisting of one or more bitplanes.
- bitplane
  
- An array of bits representing pixels of a single color in a 
    bitmap.
  
- Common User Access
  
- See CUA.
- compose sequence
  
- A sequence of key presses that can be used to type a character that
    might not appear on the keyboard.
- console
  
- One of nine virtual screens on the desktop.
    Also called a workspace.
	
- CUA
  
- Common User Access - a standard that defines how you can change
    keyboard focus.
- cursor
  
- An indicator of a position on a screen, such as a pointer
    or an insertion point in a text field.
	  
  
- DayMinder
  
- A Photon application that you can use to organize your daily
    schedule and activities.
- dead key
  
- A key that, when pressed, doesn't produce a symbol, but initiates a
    compose sequence.
	
- desktop
  
- The virtual screen provided by the Photon Desktop Manager.
    The desktop consists of nine consoles or workspaces.
  
- desktop manager
  
- See Photon Desktop Manager.
	
- dithering
  
- A process whereby pixels of two colors are combined to create 
	a texture or a blended color.
- ditto
  
- A QNX utility that lets you attach a local console or
    terminal to a remote console.
	See also phditto.
  
- File Manager
  
- The Photon File Manager (PFM), an application used to maintain and 
    organize files and directories.
 
- focus
  
- A widget that has focus will receive any key events
    collected by its window.
		
  
- folder
  
- In the Photon File Manager, a metaphor for a directory.
	
- Helpviewer
  
- A Photon application for viewing online documentation.
- hotkey
    
- A special key or keychord that invokes an action (such as
      a menu item) without actually selecting a widget.
      Also called an accelerator. 
      Contrast keyboard shortcut.
		
- hotspot
  
- The part of the pointer that corresponds to the coordinates reported 
    for the pointer (e.g. the intersection of crosshairs, or the tip of
	the arrow of the basic pointer).
  
- HSB
    
- Hue-Saturation-Brightness color model.
	
- HSV
    
- Hue-Saturation-Value color model.
	
  
- Image Viewer
  
- A Photon application (pv) that displays images.
- Jump Gate
  
- A mechanism that "transports" an application 
    from one QNX node to another.
- keyboard shortcut
  
- A key that selects a menu item. The shortcut works only if the
    menu is displayed. Contrast hotkey.
  
- Message Pad
  
- A Photon application that lets you post notes on your computer's screen
    or send them to other users over the network.
  
- palette
  
- An array of colors. A hard palette is in hardware;
    a soft palette is in software.
- PDM
  
- See Photon Desktop Manager.
- PDR
  
- See Press-drag-release.
- PFM
  
- See Photon File Manager.
- PhAB
  
- Photon Application Builder. Visual design 
    tool that generates the code required to implement a user interface.
- phditto
  
- A utility that accesses the Photon workspace on a remote node.
    See also ditto.
- Phindows
  
- Photon in Windows. An application that accesses
    Photon from a Microsoft Windows environment.
  
- PhinX
  
- Photon in X. An application that accesses
    Photon from an X Window System environment.
- Photon Desktop Manager (PDM)
  
- An application that provides a "control panel" that
    lets you launch applications, move around the desktop, and change
    the desktop's settings.
- Photon File Manager (PFM)
  
- An application used to maintain and organize files and directories.
 
- Photon Terminal
  
- An application (pterm) that emulates a character-mode
    terminal in a Photon window.
- Photon Window Manager (PWM)
  
- An application that manages the appearance of window frames and
    other objects on the screen. For example, the window manager adds
    the resize bars, title bar, and various buttons to an application's
    window. The window manager also provides a method of focusing
    keyboard events.
- phsac
  
- A utility that displays system activity.
- pixmap
  
- A bitmap or image.
- pointer
  
- An object on the screen that tracks the position of a pointing
    device (e.g. a mouse, tablet, track-ball, or joystick).
    Photon has several pointers indicating various states:  Basic, Busy, 
    Help, Move, Resize, I-beam, No-input.
     
- Press-drag-release (PDR)
  
- A method of selecting a menu item by pressing down a mouse button
    while pointing to a menu button, dragging until the desired item is
    highlighted, and releasing the mouse button.
- pterm
  
- A Photon Terminal; an application that emulates a character-mode
    terminal in a Photon window.
- pv
  
- See Image Viewer.
- PWM
  
- See Photon Window Manager.
- Snapshot
  
- A Photon application for capturing images of the screen.
  
- table-of-contents (TOC) file
  
- In the Photon Helpviewer, a file that describes a 
    hierarchy of help topics.
- Taskbar
  
- An area in which the Photon Window Manager displays icons representing
    the applications that are currently running.
- topic path
  
- Help information identified by a string of titles that are
    separated by slashes.
- topic root
  
- A topic path that's used as a starting point for locating help topics.
- topic tree
    
- A hierarchy of help information.
- Unicode
  
- The ISO/IEC 10646 16-bit encoding scheme for representing 
    the characters used in most languages.
- UTF-8
  
- The encoding for Unicode characters, where each character is
    represented by one, two, or three bytes. 
- vsin
  
- A utility that displays system information.
- widget
    
- A component (e.g. a pushbutton) in a graphical user interface.
	
- Window Manager
  
- See Photon Window Manager.
- workspace
  
- See console.
- workspace menu
  
- A configurable menu that's displayed when you press or click
    the right mouse button
    while pointing at the background of the screen.