## MMPM/2 Device Driver Reference

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### MIXERCONTROL Field - ulSetting

ulSetting (ULONG) Setting for mixer attribute.

For VSD_QUERYMIXCONTROL and VSD_SETMIXCONTROL messages, the ulSetting field can range from 0 to 100.

For MIX_GETCONTROL and MIX_SETCONTROL IOCtls, the ulSetting field can range from 0 to 0x7FFFFFFF. A value of 0xFFFFFFFF is invalid and should be ignored.