In this post, you’ll learn about the error “E_CHANGED_STATE 0x8000000C” that is returned when working with COM based APIs or libraries in Windows.
COM Error Message
What is COM?
Microsoft’s COM stands for Component Object Model. Component Object Model (COM) is a networked, object-oriented framework for building interoperable binary software components. Microsoft’s OLE (compound documents), ActiveX (Internet-enabled components), and other products are built on the COM base technology.
Below is the description of this COM Error.
A concurrent or interleaved operation changed the state of the object, invalidating this operation.