Error 0x80040234

Value: -2147220940 | 0x80040234 | 2147746356

What does it mean ?

VFW_E_ALREADY_CANCELLED  
DirectShow: The queued command was already canceled.
Value: 564 | 0x0234 | 0b0000001000110100
CDO_E_SELF_BINDING  
Binding to self is not allowed.
Value: 564 | 0x0234 | 0b0000001000110100

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

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Other Errors for FACILITY_ITF