Zoom - TPdfView - PDFiumPas

Denna API-post behåller identifierare, signaturer, kodblock och PDF-termer i ursprunglig form.

Komponent: TPdfView · Enhet: PDFium

Zoom factor where 1.0 = 100% (one PDF point = 1 screen pixel at 72 DPI).

Syntax

property Zoom: Double;

Beskrivning

Zoom factor where 1.0 = 100% (one PDF point = 1 screen pixel at 72 DPI).

Assigning a value implicitly switches FitMode to pfmNone.

All TPdfView display properties trigger a repaint when assigned; you can change several in sequence without flicker because the redraw is coalesced into a single invalidation.

Anmärkningar

Set design-time defaults in the Object Inspector or assign at runtime before Active := True.
Ändringar sprids till den underliggande TPdf endast för egenskaper som påverkar beständigt tillstånd (t.ex. Pdf.PageRotation); rena visuella egenskaper stannar lokalt i vyn.
If you replace PdfView1.Pdf at runtime, re-apply any view-only settings — the new TPdf has its own state.

Exempel

begin
PdfView1.Zoom := {value};
PdfView1.Active := True;
end;

Se även

Active, Pdf, Options