## Physical Device Driver Reference

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### SCR_ABIOSPASSTHRU (74h) - ABIOS Pass-Through

Category:
IOCTL_SCR_AND_PTRDRAW (03h)
Function:
SCR_ABIOSPASSTHRU (74h)
Description:
ABIOS Pass-Through

Select an item:

    Description
    Parameter Packet Format
    Data Packet Format
    Returns
    Remarks

This function passes an ABIOS request block to Unit 0 of the video device opened by SCREEN$, and returns it to the caller on completion of the request.