## Pen for OS/2 Device Driver Reference

[prev][next][parent][TOC]

### Glossary - P

P

parallax - A condition that occurs when a gap exists between the locator position and the displayed trail resulting from writing with the pen. Parallax differs in both the horizontal and vertical views by how a user looks at the display.

parent class - A class from which another class inherits. See inheritance.

parent process - A process that creates other processes. Contrast with child process.

path - The part of a file specification that lists the drive name and a series of directory names that give the location of the file. Each directory name is separated by the backslash character. In the specification C:\MYFILES\MISC\GLOSSARY.SCR, the path consists of C:\MYFILES \MISC\.

pause - An action where the pen remains motionless for an interval of time while it is in the proximity zone or touching a touch-sensitive surface. This interval of time starts a new action (for example, mouse-emulation mode).

pel - Picture element.

pen - A pointing and input device used with a touch-sensitive device.

pen-aware programs - Programs that are written or modified to use a pen or a finger as the standard input device rather than a keyboard or a mouse.

pen-unaware programs - Programs that are written to use a keyboard or a mouse and are not written to use a pen.

picture element - In computer graphics, the smallest element of a display surface that can be independently assigned color and intensity. (T)

pixel - Picture element.

privilege level - A protection method supported by the hardware architecture of IBM personal computer systems. This method consists of four privilege levels know as rings (numbered 0 through 3). Only certain types of programs are allowed to execute at each privilege level.

program-file object - An object that starts a program. Program files commonly have extensions of .EXE, .COM, .CMD, or .BAT.

program object - An object representing the file that starts a program. A user can change the settings for a program object to specify the gesture assignments for a particular program.

proximity zone - An area where action is sensed by a touch-sensitive device without the input device touching the touch-sensitive surface. The zone varies depending on the technology of the digitizer in the device, but it is usually no more than 6.35 mm (0.25 in.) from the surface.