## MMPM/2 Device Driver Reference

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### VSD_QUERYMIXCONTROL - Remarks

The ulLine field of the MIXERCONTROL structure must be filled in with one of the VSD sources/sinks in the low-order byte of the low word.

The ulControl field of the MIXERCONTROL structure must be filled in with the desired setting. For stereo controls, the high-order word of this field contains the left channel setting and the low-order word contains the right channel setting. A value of 0xFFFF represents full intensity and a value of 0x0000 is full cutout.