## Presentation Device Driver Reference for OS/2

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### Output Directly to Device

The handling of an OD_DIRECT DC is similar to an OD_QUEUED PM_Q_RAW DC, except that PRTxxx calls are used to write the data. You should use a second thread for writing to the device so that the application's thread is not blocked for long periods of time during a device timeout situation.

The following illustration shows this output method. [Artwork not shown]

Output to Device - OD_DIRECT