Am 11.11.2022 um 16:29 schrieb Bo Berglund via lazarus:
You see that the buffer contains the complete log history from the start...
When the first block of data has arrived I would store the length of the buffer at this time. Then next time when new data come in, I would extract the "new data", i.e. the bytes between the stored length and the new length of the buffer and add them to the listbox. And store the current length for the next round. Etc... This avoids moving all the data to the listbox, which it already has, again and again. Because extraction of the individual lines in lbxRxdata.Items.Text := DataTxt is a length process.
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