DirectX SDK

DirectSoundBuffer.ReadBuffer

The DirectSoundBuffer.ReadBuffer method reads a segment of the sound buffer and stores the data into a variable of type Any.

object.ReadBuffer(start As Long, _
    size As Long, _
    buffer As Any, _
    flags As CONST_DSBLOCKFLAGS)

Parameters

object
Object expression that resolves to a DirectSoundBuffer object.
start
Offset, in bytes, from the start of the buffer to where the read begins. This parameter is ignored if DSBLOCK_FROMWRITECURSOR constant is specified in the flags parameter.
size
Size, in bytes, of the portion of the buffer to read. Note that the sound buffer is conceptually circular.
buffer
Variable to hold the data read. Must be the same size as the sound buffer. You must pass the first element of the array.
flags
One of the following constants of the CONST_DSBLOCKFLAGS enumeration that modifies what is read:
DSBLOCK_FROMWRITECURSOR
Read from the current write position, making a call to DirectSoundBuffer.GetCurrentPosition method unnecessary. If this flag is specified, the start parameter is ignored.
DSBLOCK_ENTIREBUFFER
Reads the entire buffer. The size parameter is ignored.

Error Codes

If the method fails, an error is raised and Err.Number may be set to one of the following error codes:

DSERR_BUFFERLOST
DSERR_INVALIDCALL
DSERR_INVALIDPARAM
DSERR_PRIOLEVELNEEDED