## Display Device Driver Reference for OS/2

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### Function 112h - Flags

Flags

Defined as follows:

    Bit 0 indicates whether the physical hardware

          is to be read.

          OFF = Return data from the environment buffer

                only.

          ON  = Read the hardware to update the environment

                buffer before returning the requested data.

    The remaining flags select the information to be

    returned:

    Bit 1 selects blink versus background color.

    Bit 2 selects overscan (border) color.

    Bit 3 selects scan line for underscore.

    Bit 4 selects video enable.

    Bit 5 selects the display mask.

    Bit 6 selects code page.

    Bit 7 forces a code page set (used with 6).

    Bit 8 gets the scrollable rectangle.

    Bits 9-15 are reserved and must be OFF.