◆ PMAPELEMENTFUNCTION

typedef bool(* PMAPELEMENTFUNCTION) (const void *pKey, std::size_t cbKey, void *pValue, std::size_t cbValue, void *lpArg) NOEXCEPT_CPP17

A client callback function used in the MapApplyFuncToElements function as a procedure over each element of the map.

Parameters

[in]	pKey	is a pointer to a key of an element.
[in]	cbKey	is a byte size of the key.
[in]	pValue	is a pointer to a value of an element.
[in]	cbValue	is a byte size of the value. If the element has been inserted by pointer (without copying), the cbValue is 0.
[in]	lpArg	is a pointer passed as the last parameter of the MapApplyFuncToElements function. The pointer is passed to the callback function "as-is".

Returns: For the definition of how the MapApplyFuncToElements function processes the return values see its definition.