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 PDFium - select text per double click

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marek Posted - Jul 03 2021 : 15:06:47
PDFViewer has the function 
function SelectWord(CharIndex: Integer; DoScroll: Boolean = False): Boolean;

I would like to use the function for selecting the word double clicked by the user. Is it possible?
How to get CharIndex from mouse click coordinates?
3   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Jul 07 2021 : 18:30:32
Hi Marek

If you are using an earlier 10.0.2 beta, email me for an update.

I'll consider double-click field behavior in a later update.


Nigel
Xequte Software
www.imageen.com
marek Posted - Jul 06 2021 : 15:13:46
In my 10.0.2 version these functions (ScrToCharIndex, CharIndexToWord) does not exists but select per double click works - word under the mouse is selected.
If possible it should be implemented the same way in the form field. Currently always the entire content of the field is selected.

Greetings,
Marek
xequte Posted - Jul 05 2021 : 22:32:30
Hi

Double-clicking a character should automatically select the whole word. Are you seeing something different?

In v10.0.2 you can use CharIndexToWord(), e.g.

// Show the text under the cursor
procedure TfrmMain.ImageEnView1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
var
  charIndex, textIndex, textLength: Integer;
begin
  charIndex := ImageEnView1.PdfViewer.ScrToCharIndex( X, Y );
  ImageEnView1.PdfViewer.CharIndexToWord( charIndex, textIndex, textLength );
  lblWord.Caption := ImageEnView1.PdfViewer.GetText( textIndex, textLength );
end;


Nigel
Xequte Software
www.imageen.com