Codeswamp is a database of error codes generated from the original sources (e.g. header files) and this page was generated from it. I hope you find it useful.

Click to search on msdn, to search on stackoverflow.

This table shows the most common 32-bit representations of this value.

Type	Value
Hex	0x00000455
Signed	1109
Unsigned	1109

This table lists the symbols that exactly match the value.

Symbol	Description
ERROR_UNABLE_TO_UNLOAD_MEDIA	Unable to unload the media.

Click to search on msdn, to search on stackoverflow.

Interested in learning more about COM and HRESULTs? Don Box's excellent book not only guides you on how to implement client and server code, it also gives you a behind-the-scenes understanding of COM, all the way from RPC to DCOM. Definitely a worthy investment for anybody developing or mainintaing software with COM interfaces!

Essential COM by Don Box

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