AsyncBase::CheckValidStateForDelegateCall Method
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The latest version of this topic can be found at AsyncBase::CheckValidStateForDelegateCall Method.
Tests whether delegate properties can be modified in the current asynchronous state.
Syntax
inline HRESULT CheckValidStateForDelegateCall();
Return Value
S_OK if delegate properties can be modified; otherwise, E_ILLEGAL_METHOD_CALL.
Requirements
Header: async.h
Namespace: Microsoft::WRL