Creates an interrupt object which reserves a range of vectors suitable for use with multiple MSI handling.

RTHANDLE AllocateRtInterrupts (
    DWORD nVectors
);

Parameters

nVectors

The number of vectors to reserve. This must be a power of two, and less than or equal to 32 in value.  

Return Values

A valid RTHANDLE

Success

BAD_RTHANDLE 

To determine the status, call GetLastRtError

Status

E_OK 0x0000

No exceptional conditions occurred.

E_PARAM 0x8004

nVectors contains an invalid value.

Requirements