ERR_DP4_NOT_SUP

Code: 4531 (4531)

As HRESULT:

S: 0 (Success)
C: 0 (Microsoft-defined)
N: 0 (Not an NTSTATUS value)
Facility: 0x000 (FACILITY_NULL: Default)
Code: 0x11b3 (4531)

As NTSTATUS:

Sev: 0 (STATUS_SEVERITY_SUCCESS)
C: 0 (Microsoft-defined)
Facility: 0x000 (Default)
Code: 0x11b3 (4531)

Documented in Win32

HLSL errors and warnings (comperrors.h): 4531

DP4 isn't supported.