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engiGetAttrOptionalBN

This call can be used to check if an attribute is optional

Syntax

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
//
//   Strong typing definition
//
int_t           engiGetAttrOptionalBN(
                        SdaiEntity              entity,
                        const char              * attributeName
                    );


//
//   Weak typing definition
//
int_t   __declspec(dllexport) __stdcall   engiGetAttrOptionalBN(
                                                                        int_t                   entity,
                                                                        const char              * attributeName
                                                                    );

Property entity

Size: 64 bit / 8 byte (value)
...

Property attributeName

Size: 64 bit / 8 byte (reference)
...