IWialonParam
The interface contains the description of parameters in a message.
| Property | Param | Return Value | Description |
| Type | – | BSTR*
Type | To get message type (int, double, string). |
| Name | – | BSTR* Name | To get parameter name. |
| Value | – | VARIANT* Value | To get parameter value. Previously, you should get to know data type in VARIANT – to do this use the function Value.Type or VarType(Value). |
| ValueStr | – | BSTR* Value | The analogue of the property Value compatible with applications which do not support VARIANT data type. |
