MIDIRemoveLink Return Value - rc

rc (ULONG) - returns

Returns 0 if the command is completed successfully.

MIDIERR_INVALID_INSTANCE_NUMBER

Either the source or target instance number is invalid.
MIDIERR_INVALID_FLAG
The ulFlag value is not set to 0.
MIDIERR_INVALID_PARAMETER
The ulSlotNumber parameter contains an invalid value.
MIDIERR_INTERNAL_SYSTEM
System problem.
MIDIERR_NOT_ALLOWED
An attempt was made to remove a link which was not created by this process.

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