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INSSBuffer.GetBufferAndLength (Visual Basic .NET)

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INSSBuffer.GetBufferAndLength (Visual Basic .NET)

The GetBufferAndLength method retrieves the allocated buffer and the length of the data segment that can be loaded into it.

Syntax

Parameters

ppbBuffer

IntPtr containing the allocated buffer.

pdwLength

Reference to a UInt32 containing the size of the allocated buffer in bytes.

Return Values

This method does not return a value.

If this method fails, it throws an exception.

Number Description
0x80070057 ppbBuffer or pdwLength is null.

Remarks

You can use the IWMSBufferAllocator Object (Visual Basic .NET) to allocate the buffer.

Example Code

' Declare variables.
Dim pbBuffer As IntPtr
Dim pdwLength as UInt32
Dim Bytes as Byte()

' Retrieve a pointer to the buffer and convert it to an array of bytes.
' The pBuffer pointer is user-defined.
pBuffer.GetBufferAndLength(pbBuffer, pdwLength)
Bytes = Array.CreateInstance(GetType(Byte), Convert.ToInt32(pdwLength))
Marshal.Copy(pPlsBuf, Bytes, 0, Convert.ToInt32(pdwLength))

Requirements

Reference: Add a reference to Microsoft.WindowsMediaServices.

Namespace: Microsoft.WindowsMediaServices.Interop.

Assembly: Microsoft.WindowsMediaServices.dll.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; Windows Server 2008.

See Also

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