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Marks all pending input/output (I/O) operations as canceled.
Syntax
HRESULT CancelIo();
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Requirements
| Requirement | Value | 
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] | 
| Minimum supported server | Windows Server 2008 [desktop apps only] | 
| Target Platform | Windows | 
| Header | shobjidl.h |