DevQueryDeviceNames Parameter - pldn

pldn (PLONG) - in/out

Maximum number of device names and descriptions that can be returned.

On input, it must be greater or equal to 0. pldn can have the following values:

Zero

The number of device names and descriptions supported is returned; aDeviceName and aDeviceDesc are not updated.
Nonzero
pldn is updated to the number returned in aDeviceName and aDeviceDesc; aDeviceName and aDeviceDesc are updated.

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