E57 Foundation API v1.1.312
Aug. 10, 2011
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Downcast a generic Node handle to a StructureNode handle.
The handle n must be for an underlying StructureNode, otherwise an exception is thrown. In designs that need to avoid the exception, use Node::type() to determine the actual type of the n before downcasting. This function must be explicitly called (c++ compiler cannot insert it automatically).
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