IBuffer interface
Represents an array of bytes.
Members
The IBuffer interface inherits from IInspectable. IBuffer also has these types of members:
- Properties
Properties
The IBuffer interface has these properties.
| Property | Access type | Description |
|---|---|---|
Read-only |
Gets the maximum number of bytes that the buffer can hold. |
|
Read-only |
Gets the number of bytes currently in use in the buffer. |
Remarks
The IBuffer interface is used by the IInputStream and IOutputStream interfaces.
An IBuffer implementation must implement the IMarshal interface and marshal the contents of the buffer by value when the IBuffer is passed across a process boundary. When marshaled across apartments within a process, the IBuffer implementation must allow direct access to the buffer without synchronization.
When you implement the IBuffer interface, you must implement the IBufferByteAccess interface, which is a COM interface for accessing the buffer directly. C++ callers use this interface to avoid making a copy of the buffer.
Also, to ensure correct marshaling behavior, you must implement marshal-by-value by using the RoGetBufferMarshaler function.
Requirements
Minimum supported client |
Windows 8 |
Minimum supported server |
Windows Server 2012 |
Header |
Robytestream.h |
IDL |
Robytestream.idl |