Update(dwReadCursor, dwReadBytes, dwFlags)
Retrieve data from the capture buffer.
Parameters
dwReadCursor : int
Offset, in bytes, from the start of the buffer to where the update begins.dwReadBytes : int
Size, in bytes, of the portion of the buffer to update.dwFlags=0 : int
Flags modifying the update event. This value can be 0 or the following flag:
DSCBLOCK_ENTIREBUFFER The dwReadBytes parameter is to be ignored and the entire capture buffer is to be locked.