How to find out the return code and it's corresponding values(integer) of MsiEnumProductsEx function ?

[sarath govind]

MsiEnumProductsEx function has

Return code Description
ERROR_ACCESS_DENIED
If the scope includes users other than the current user, you need administrator privileges.
ERROR_BAD_CONFIGURATION
The configuration data is corrupt.
ERROR_INVALID_PARAMETER
An invalid parameter was passed to the function.
ERROR_NO_MORE_ITEMS
There are no more products to enumerate.
ERROR_SUCCESS
A product is enumerated.
ERROR_MORE_DATA
The szSid parameter is too small to get the user SID.
ERROR_UNKNOWN_PRODUCT
The product is not installed on the computer in the specified context.
ERROR_FUNCTION_FAILED
An unexpected internal failure

these many return codes , I just wanted to know it's corresponding integer values

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