PDFium Component Docs

FindFirst method

Component: TPdfView  ·  Unit: PDFium
Začne iskanje podanega besedila. StartIndex začne pri nič, -1 pomeni konec strani. Parameter DirectionUp določa smer te iskalne operacije

Syntax

function FindFirst(const Text: WString; Options: TSearchOptions= []; StartIndex: Integer= 0; DirectionUp: Boolean= True): Integer;

Return Value

Ničelno indeksiran položaj znaka prvega zadetka, ali -1, če besedila ni mogoče najti

Description

Initiates a text search on the current page. Call this method before using FindNext or FindPrevious to iterate through subsequent matches. Each call to FindFirst resets the internal search handle.

To highlight all occurrences visually without iterating, use HighlightSearchText instead.

Example

var Pos: Integer;
begin
  Pos := PdfView.FindFirst('invoice', [soMatchCase]);
  while Pos >= 0 do
  begin
    Memo1.Lines.Add('Found at index: ' + IntToStr(Pos));
    Pos := PdfView.FindNext;
  end;
end;

See Also

TPdfView.FindNext, TPdfView.FindPrevious, TPdfView.Find, TPdfView.HighlightSearchText