The signature of the argument, including its dimensions and constraints.
An argument's type may be a built-in data types or any Extended scalar type that has been registered.
The built-in types are as follows:
| Type | C++ type | Description |
|---|---|---|
| Boolean | BOOL | Boolean (true or false) value |
| Double | double | Floating-point number |
| Int | long | Signed integer (32-bit) |
| Short Int | short int | Signed integer (16-bit) |
| String | const CXlStringArg& | Text string |
| Unsigned Short Int | unsigned short int | Unsigned integer (16-bit) |
| Reference | const CXlOper* | A reference to an Excel cell range |
| Value | const CXlOper* | The value(s) contained in an Excel cell range |
| XlArray | const CXlArray& | An array of numbers |
Value types can be assigned a rank, which defines the number of dimensions they are expected to have.
| Rank | Name | Description |
|---|---|---|
| 0 | Scalar | A single value |
| 1 | Vector | A set of values contained in a single row or column |
| 2 | Matrix | A set of values contained in one or more rows and one or more columns |
Vector or matrix arguments will be stored in a container, such as std::vector<T>. You can use the Vector Container or Matrix Container controls to specify a particular container class. Otherwise the default class (as defined by the DefaultVectorContainer or DefaultMatrixContainer settings) will be used.