DevPostDeviceModes Return Value - lDriverCount

lDriverCount (LONG) - returns

Size/error indicator.

Value depends on what was passed as the pointer to pdrivDriverData. If NULL was passed, the following values are possible:

DPDM_ERROR

Error
DPDM_NONE
No settable options
>0
Size in bytes required for pdrivDriverData.
If any other value was passed, the following values are possible:

DPDM_ERROR

Error
DPDM_NONE
No settable options
DEV_OK
OK.

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