Info->BufferWritePos = Info->BufferUsed;
// Clear old characters (if needed)
if( oldLen > Info->BufferWritePos ) {
pos = oldLen - Info->BufferWritePos;
Info->BufferWritePos = Info->BufferUsed;
// Clear old characters (if needed)
if( oldLen > Info->BufferWritePos ) {
pos = oldLen - Info->BufferWritePos;