MQL5 ReferenceCustom SymbolsCustomSymbolSetString

CustomSymbolSetString

Sets the string type property value for a custom symbol.

bool  CustomSymbolSetString(
   const string              symbol_name,      // symbol name
   ENUM_SYMBOL_INFO_STRING   property_id,      // property ID
   string                    property_value    // property value
   );

Parameters

symbol_name

[in] Custom symbol name.

property_id

[in] Symbol property ID. The value can be one of the values of the ENUM_SYMBOL_INFO_STRING enumeration.

property_value

[in] A string type variable containing the property value.

Return Value

true – success, otherwise – false. To get information about the error, call the GetLastError() function.

Note

The minute and tick history of the custom symbol is completely removed if the SYMBOL_FORMULA property (setting the equation for the custom symbol price construction) is changed in the symbol specification. After deleting the custom symbol history, the terminal attempts to create a new history using the new equation. The same happens when the custom symbol equation is changed manually.