## Display Device Driver Reference for OS/2

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### DSPINSTL Architecture

DSPINSTL consists of the following major components:

DSPINSTL Configuration File Interpreter

Initial User Interface PM Panels

A set of standard Presentation Manager panels that serve as a basic front- end user interface. (See User Interface PM Panels for details.)

Action Routine Interface

A function that provides the optional addition of custom-control logic. ( See Action Routine Interface for more information.)

Service Functions

A set of standard service functions that can be called from within an action routine. (See DSPINSTL Service Functions.)

Command Language PM Panels

A set of standard PM panels that act as the front end to the DSPINSTL Command Language Interpreter as described in Command Language PM Panels.

Command Language Interpreter

The final stage of DSPINSTL, which executes the installation and configuration commands packed in the display-driver profile (DSP) files. ( See DSPINSTL Command Language Interpreter for details.)