Reuters AdfinX Real Time 1.0 Library User Guide (Doc. No. 4510529)

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AdfinX Real Time 1.0 Library - User's Guide Arguments None Return Value Returns a two-dimensional array of Variant. The elements contain values for the fields listed in ExistingFields for each date entry retrieved from the time series. The Mode property determines various presentational and selection filtering options. 5.1.9. DataStatus DataStatus This property returns the status of the historical data received from the source. Arguments None Return Value This property returns a value taken from the RT_DataStatus enumeration. 5.1.10. RunStatus RunStatus This property allows the application to know whether the object is currently retrieving historical data. Arguments None Return Value This function returns a one of the values listed in the RT_RunStatus enumeration. 5.1.11. ExistingFields ExistingFields This property indicates which fields have been supplied in the returned historical data entries. Arguments None Return Value Returns a one-dimensional array of Variant. The elements contain the names of the fields contained in each date entry of the Data property, as returned by the time series data source. 44
AdfinX Real Time 1.0 Library - User's Guide 5.2. ADXRTHISTORY METHODS 5.2.1. RequestHistory RequestHistory(FieldList) This method causes a request for time series data concerning the item identified by the ItemName property. Historical data is retrieved for the fields listed in the parameter FieldList, if possible (the actual list of fields retrieved will be stored in the ExistingFields property). This action occurs asynchronously; the arrival of history data, or an indication of a request error, causes the OnUpdate event to occur. Arguments FieldList An array of field names as strings, identifying the fields for which historical values should be retrieved. If empty, all fields available in the time series will be retrieved. 5.2.2. FlushData FlushData() This method causes the history object to forget all data retrieved through a previous call to RequestHistory. Arguments None. 5.3. ADXRTHISTORY EVENTS 5.3.1. OnUpdate OnUpdate(DataStatus) This callback handles updates to the requested historical data, following a call to the RequestHistory method. It may be called a number of times as updates occur, filling the Data property with historical event information, before the retrieved time series is complete (according to the constraints applied using the Mode property). Arguments DataStatus The status of the data retrieved by the request. This is a value taken from the RT_DataStatus enumeration. 45
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Reuters AdfinX Real Time 1.0 Library User Guide (Doc. No. 4510529)

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