'function' : a pure function cannot be '__sealed'
The __sealed keyword was applied to a pure virtual function. A pure virtual function must be implemented in a derived class; a __sealed method cannot be implemented by a derived class.
The following sample generates C3162:
#using <mscorlib.dll> __gc class CMyClass { __sealed void virtual Function(void) = 0; // C3162 }; void main() { }