| Platform SDK: MAPI |
CMC_ui_id is a data type that is a CMC user interface handle.
| Header file: | XCMC.H |
typedef CMC_uint32 CMC_ui_id;
The CMC implementation uses a data value of this type for passing user interface information to CMC functions. For example, in a Windows-based operating environment, the parent window handle for the client application is a data value of this type.
A value of NULL for CMC_ui_id is always valid. The CMC implementation defines a default behavior. For example, some implementations might treat NULL as a request to use a user interface defined within the implementation, while other implementations might not have any internally defined interface at all.