iCloud constants The iCloud constants are as follows: iCloud functions The functions to handle keys in an Apple iCloud-based container of "key-value" pairs are as follows... iCloudKeyValueExist (Function) Checks if there is a key in an Apple iCloud-based container of "key-value" pairs. iCloudKeyValueListKey (Function) Lists the keys contained in an Apple iCloud-based container of "key-value" pairs. iCloudKeyValueRead (Function) Reads the value of a key in an Apple iCloud-based container of "key-value" pairs. iCloudKeyValueRemove (Function) Removes a key from an Apple iCloud-based container of "key-value" pairs. iCloudKeyValueWatch (Function) Defines the procedure called when the value of a key is changed in an Apple iCloud-based container of "key-value" pairs. iCloudKeyValueWrite (Function) Stores the value of a key in an Apple iCloud-based container of "key-value" pairs. WLanguage procedure called by iCloudKeyValueWatch Callback of the iCloudKeyValueWatch.Cb function for the callback parameter