The function sets the value of the corresponding object property. The object property must be of the string type. There are 2 variants of the function.
Setting property value, without modifier
Setting a property value indicating the modifier
[in] Chart identifier. 0 means the current chart.
[in] Name of the object.
[in] ID of the object property. The value can be one of the values of the ENUM_OBJECT_PROPERTY_STRING enumeration.
[in] Modifier of the specified property. It denotes the number of the level in Fibonacci tools and in the graphical object Andrew's pitchfork. The numeration of levels starts from zero.
[in] The value of the property.
The function returns true only if the command to change properties of a graphical object has been sent to a chart successfully. Otherwise it returns false. To read more about the error call GetLastError().
When an object is renamed, two events are formed simultaneously. These events can be handled in an Expert Advisor or indicator by the OnChartEvent() function: