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# SetDouble
Sets new value for the chart property of the double type.
```
bool  SetDouble(
   ENUM_CHART_PROPERTY_DOUBLE  prop_id,     // property identifier
   double                      value        // new value
   )
```
Parameters
prop_id
[in]  Chart property identifier (from [ENUM_CHART_PROPERTY_DOUBLE](/en/docs/constants/chartconstants/enum_chart_property#enum_chart_property_double) enumeration).
value
[in]  New value for the property.
Return Value
true - successful, false - cannot change the double property.