Indicates that a parameter is to be passed from the calling procedure to the called procedure.
[in]
Remarks
The in C++ attribute has the same functionality as the in MIDL attribute.
Example
See bindable for an example of how to use in.
Requirements
Attribute Context
| Applies to | Interface parameter, interface method | 
| Repeatable | No | 
| Required attributes | None | 
| Invalid attributes | retval | 
For more information about the attribute contexts, see Attribute Contexts.