type TPdfSpokenSpan = record ... end;
| Field | Type | Purpose |
|---|---|---|
SpokenStart | Integer | Zero-based character offset inside TPdfSpokenText.Text |
SpokenCount | Integer | Character count in the spoken text covered by this span |
Page | Integer | One-based source page number |
StartIndex | Integer | Zero-based FTextPage character index of the source range |
Count | Integer | Source character count mapped to this span |
A span links a run in the speech-engine string back to the page text so read-aloud code can highlight or select the original PDF characters