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MQL5 ReferenceStandard LibraryGeneric Data CollectionsCKeyValuePair<TKey,TValue>Key 

Key (the Get method)

Gets the key in the key/value pair.

TKey Key();

Return Value

Returns the key.

Key (the Set method)

Sets the key in the key/value pair.

void Key(
   TKey  key     // key
   );

Parameters

key

[in]  Key.