Procedura SetReadingHighlight - TPdfView

Component: TPdfView · Unit: PDFium

Řídí překryv zvýraznění čtení v TPdfView používaný pro synchronizované předčítání textu

Syntax

procedure SetReadingHighlight(const Rects: TPdfRectangles; PageNumber: Integer);

Parameters

Rects	TPdfRectangles. Page-coordinate rectangles to paint
PageNumber	Integer. One-based page that owns the rectangles

Return Value

Reading highlight rectangles are supplied in page coordinates and painted over the requested page. This is intended for the current paragraph, heading, table cell, or line being spoken

Clear the highlight when playback stops or when the application moves to another fragment. ReadingHighlightColor controls the overlay colour

Description

API names, type names, and PDF terms keep their original spelling so code search remains reliable
Call the member only after the owning document or viewer is active unless the syntax describes an event or design-time property

Remarks

if Length(Content.Fragments) > 0 then
PdfView1.SetReadingHighlight(Content.Fragments[0].LineRects, Content.Page);

Example

SetReadingHighlight, ClearReadingHighlight, ReadingHighlightColor, ReadableContent