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 If RView contains an invalid value, an error exception will be thrown. Example Public list as AdxRtList Set list = New AdxRtList Dim MyArray as Variant MyArray = list.ListFields("DEM=", RT_FRV_ALL, RT_FCV_VALUE) NumFields = list.FieldListCount("DEM=", RT_FRV_ALL) 'NumFields holds the number of rows (fields) contained in MyArray. ' 2.1.12. ItemListCount ItemListCount(RView) This property supplies the number of items described by the ListItems property. Arguments RView One of the values from the RT_ItemRowView enumeration. This specifies how the counting should be performed: one row for each updated field, one row for each registered field, or one row for each field supplied by the identified item. Return Value The number of items counted is supplied as an integer. This will be zero if an error occurs. Error Handling An error exception may be thrown in the following cases: If RView is set to RT_IRV_UPDATED and the property is queried outside of an event callback (i.e. one of OnImage, OnUpdate or OnTime), the return value will be 0. In this case, an error exception will be thrown. If RView contains an invalid value, an error exception will be thrown. Example Public list as AdxRtList Set list = New AdxRtList Dim MyArray as Variant MyArray = list.ListItems(RT_IRV_ALL, RT_ICV_USERTAG) ListCount = list.ItemListCount(RT_IRV_ALL) 'ListCount holds the number of rows (items) contained in MyArray. ' 16
AdfinX Real Time 1.0 Library - User's Guide 2.1.13. Value Value(ItemName, Field) This property returns a variant containing the current value of the field specified by ”FieldName”of the item specified by ”ItemName”. If the data is not available or one of the parameters is invalid an empty variant is returned. Arguments ItemName Field The name of the item as a string. Either the name of the field whose value to retrieve as a string or its numeric identifier. Return Value Returns the value of the identified field or an empty variant if the value is still unkown or invalid. Error handling If the item or the field has not been registered or the field is not in the field dictionary, an exception is thrown notifying the user that the argument is not valid. Example Public list as AdxRtList Set list = New AdxRtList Dim ItemList(0 To 1) as Variant ItemList(0) = "EUR=" ItemList(1) = "JPY=" Dim FieldList(0 To 1) as Variant FieldList(0) = "BID" FieldList(1) = "ASK" Dim Data As Variant 'The returned value can be either a string or a numeric value. ' list.RegisterItems ItemList, FieldList Data = list.Value("EUR=", "BID") 'The latest value of the "BID" field of the item "EUR=" is stored in Data. ' 2.1.14. FieldStatus FieldStatus(ItemName, FieldName) This property returns a value from the RT_FieldStatus enumeration. Arguments ItemName FieldName The name of the item as a string. The name of the field as a string. 17
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Reuters AdfinX Real Time 1.0 Library User Guide (Doc. No. 4510529)

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