Instance Header API Calls
File IO API Calls
Schema Reading API Calls
Instance Reading API Calls
Instance Writing API Calls
Controling API Calls
Uncategorized API Calls
Geometry Kernel related API Calls
Deprecated API Calls (GENERIC)
Validation
Deprecated API Calls (GEOMETRY)

sdaiUnsetAttrBN

This call removes all data from a specific attribute for the given instance. Technically it will transform into the following call

    sdaiUnsetAttr(
            instance,
            sdaiGetAttrDefinition(
                    sdaiGetInstanceType(
                            instance
                        ),
                    attributeName
                )
        );

Syntax

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
public const string ifcenginedll = @"ifcengine.dll";

[DllImport(IFCEngineDLL, EntryPoint = "sdaiUnsetAttrBN")]
public static extern void sdaiUnsetAttrBN(int_t instance, string attributeName);

[DllImport(IFCEngineDLL, EntryPoint = "sdaiUnsetAttrBN")]
public static extern void sdaiUnsetAttrBN(int_t instance, byte[] attributeName);

Property instance

Size: 32 bit / 4 byte (value)
...

Property attributeName

Size: 32 bit / 4 byte (reference)
...