Windows HRESULT Codes

32-bit error and status codes used throughout the Windows platform, COM, and Win32 APIs. The high bit indicates failure (1) or success (0); facility bits identify the subsystem.

52 codes

• CLASS_E_CLASSNOTAVAILABLE Class not available
• CLASS_E_NOAGGREGATION Class does not support aggregation
• CO_E_ALREADYINITIALIZED COM already initialised
• CO_E_CREATEPROCESSFAILED Create process failed
• CO_E_NOTINITIALIZED COM not initialised
• D2DERR_INVALID_CALL Direct2D invalid call
• D2DERR_NOT_INITIALIZED Direct2D not initialised
• D2DERR_RECREATE_TARGET Direct2D recreate target
• D2DERR_WRONG_STATE Direct2D wrong state
• DXGI_ERROR_ACCESS_DENIED DXGI access denied
• DXGI_ERROR_DEVICE_HUNG DXGI device hung
• DXGI_ERROR_DEVICE_REMOVED DXGI device removed
• DXGI_ERROR_DEVICE_RESET DXGI device reset
• DXGI_ERROR_DRIVER_INTERNAL_ERROR DXGI driver internal error
• DXGI_ERROR_INVALID_CALL DXGI invalid call
• DXGI_ERROR_MORE_DATA DXGI buffer too small
• DXGI_ERROR_NOT_FOUND DXGI object not found
• DXGI_ERROR_UNSUPPORTED DXGI feature unsupported
• E_ABORT Operation aborted
• E_ACCESSDENIED Access denied
• E_FAIL Unspecified failure
• E_HANDLE Invalid handle
• E_INVALIDARG Invalid argument
• E_NOINTERFACE No such interface supported
• E_NOTIMPL Not implemented
• E_OUTOFMEMORY Out of memory
• E_POINTER Invalid pointer
• E_UNEXPECTED Unexpected failure
• HRESULT_FROM_WIN32_ERROR_ALREADY_EXISTS Already exists (Win32)
• HRESULT_FROM_WIN32_ERROR_FILE_NOT_FOUND File not found (Win32)
• HRESULT_FROM_WIN32_ERROR_INSUFFICIENT_BUFFER Insufficient buffer (Win32)
• HRESULT_FROM_WIN32_ERROR_NOT_SUPPORTED Not supported (Win32)
• HRESULT_FROM_WIN32_ERROR_PATH_NOT_FOUND Path not found (Win32)
• HRESULT_FROM_WIN32_ERROR_SHARING_VIOLATION Sharing violation (Win32)
• HRESULT_FROM_WIN32_ERROR_TIMEOUT Wait timeout (Win32)
• REGDB_E_CLASSNOTREG Class not registered
• RPC_E_CALL_REJECTED RPC call rejected
• RPC_E_CHANGED_MODE RPC apartment model changed
• RPC_E_DISCONNECTED RPC object disconnected
• S_FALSE Operation successful (false)
• S_OK Operation successful
• STG_E_ACCESSDENIED Storage access denied
• STG_E_CANTSAVE Storage cannot save
• STG_E_FILEALREADYEXISTS Storage file already exists
• STG_E_FILENOTFOUND Storage file not found
• STG_E_INSUFFICIENTMEMORY Insufficient memory for storage operation
• STG_E_INVALIDFUNCTION Invalid function
• STG_E_MEDIUMFULL Storage medium full
• STG_E_PATHNOTFOUND Storage path not found
• STG_E_REVERTED Storage reverted
• STG_E_SHAREVIOLATION Storage share violation
• STG_S_CONVERTED Storage converted