MIDICreateInstance Return Value - rc

rc (ULONG) - returns

Returns 0 if the command is completed successfully.

MIDIERR_DUPLICATE_INSTANCE

The instance name already exists.
MIDIERR_INTERNAL_SYSTEM
System problem.
MIDIERR_INVALID_CLASS_NUMBER
The class number (ulClassNumber) is invalid.
MIDIERR_INVALID_FLAG
The ulFlag value is not set to 0.
MIDIERR_INVALID_INSTANCE_NAME
The instance name (pszInstanceName) is invalid.
MIDIERR_INVALID_PARAMETER
The pminstance pointer is invalid.
MIDIERR_NOT_ALLOWED
An attempt was made to create a second application node.
MIDIERR_RESOURCE_NOT_AVAILABLE
A required system resource is not available.

---

[Back: MIDICreateInstance Parameter - ulFlag]
[Next: MIDICreateInstance - Parameters]