## Pen for OS/2 Device Driver Reference

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### Glossary - I

I

IDC - Inter-device-driver communication.

ink - The trail resulting from writing with the pen.

inheritance - (1) In the OS/2 Presentation Manager interface, the technique of specifying the shape and behavior of one window (called a child window) as incremental differences from another window (called a parent window). ( 2) In System Object Model, implications of derivation of new classes from existing classes. Child classes inherit methods from parent and ancestor classes.

input/output control (IOCtl) - A system service that provides a way for an application to send device-specific control commands to a device driver.

instance - A specific object belonging to a class.

instance method - Actions that can be performed on instances of class objects.

inter-device-driver communication (IDC) - A mechanism that enables a physical device driver to communicate with another physical device driver.

IOCtl - Input/output control.