MCI_SYSINFO_LOGDEVICE Field - ulDeviceFlag

ulDeviceFlag (ULONG)

Flag indicating whether device is controllable or not (MCI_SYSINFO_DEV_CONTROLLABLE and MCI_SYSINFO_DEV_NONCONTROLLABLE)

The following styles can be used.

MCI_SYSINFO_DEVICESETTINGS

Indicates the MCD has custom device settings pages.
MCI_SYSINFO_DEV_CONTROLLABLE
If a device is controllable, it usually accepts a PLAY command.
MCI_SYSINFO_DEV_NONCONTROLLABLE
Examples of non-controllable devices are speakers, headphones, microphone, and amp-mixer devices.

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