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Glossary

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.

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