## Display Device Driver Reference for OS/2

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### TransferShadowRegisters

TransferShadowRegisters takes a single argument (which is a set of flags indicating the registers to copy) and is used throughout the driver to copy various values from the Shadow8514Regs to the graphics hardware. It can initiate drawing commands in the XGA driver; in the S3 driver, it cannot. In the S3 driver, the only function flag used is TSR_COLOUR_MIX, which sets the colors, hardware mix, monochrome expansion, and the color compare.