## Presentation Device Driver Reference for OS/2

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### LINEINFO Field - usBackROP

usBackROP (USHORT) Line Background mix.

The following flags apply to ulForeROP and ulBackROP:

LR_ZERO
LR_INVERTMERGEPAT
LR_MASKINVERTPAT
LR_INVERTCOPYPAT
LR_MASKPATINVERT
LR_INVERT
LR_XORPAT
LR_INVERTMASKPAT
LR_MASKPAT
LR_INVERTXORPAT
LR_LEAVEALONE
LR_MERGEINVERTPAT
LR_PATCOPY
LR_MERGEPATINVERT
LR_MERGEPAT
LR_ONE