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Search and Select the Picture inside RxRichEdit

Posted on 2004-04-16
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Last Modified: 2011-09-20
I wanted to select at runtime the image inside a TRxRichEdit
How do i do this?

example:
some data
some data

[image] <-- this will be selected and replace it with something else.

some data
some data

 Thanks
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Question by:dopors
9 Comments
 
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by:shaneholmes
Comment Utility
I dont believe that functionality exists (i.e. select an image (or aby object) at runtime).

Howevern you can test for selection type

if (stObject in SelectionType) then


SHane
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esoftbg earned 200 total points
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download a working example:                http://www.geocities.com/esoftbg/ee/Q_20957296.zip
i tested it only with this picture
emil
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Author Comment

by:dopors
Comment Utility
esoftbg: I can't download it. The link is broke.
Any body how to extract the images inside an RTF Stream. I am using RxRichEdit

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by:esoftbg
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The Q_20957296.zip is only 12 Kbytes.It downloads so fast and seems like the link is broke, but it isn't. I just verifyed it.
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by:esoftbg
Comment Utility
procedure TForm1.Replace_Rtf_Image(Rtf_Name: string);
var
  B:      Boolean;
  I:      Integer;
  P:      Integer;
  S:      string;
  StrList:TStringList;
begin
  B := False;
  StrList := TStringList.Create;
  try
    for I := 0 to Memo.Lines.Count-1 do
    begin
      S := Memo.Lines[I];
      P := Pos('\object\objemb{\*\objclass Paint.Picture}', S);
      if (B or (P>0)) then
      begin
        if not B then
        begin
          B := True;
          S := Copy(S, 1, P-1);
          StrList.Add(S);
        end
        else
        begin
          P := Pos('}}}\par', S);
          if (P>0) then
          begin
            B := False;
            Delete(S, P, 2);
            P := Pos('\par', S);
            if (P>0) then
              Delete(S, P, 4);
            S := S + 'Here can be inserted new text';
            StrList.Add(S);
            StrList.Add('\par');
          end;
        end;
      end
      else
        StrList.Add(Memo.Lines[I]);
    end;
  finally
    RichEdit.Clear;
    Memo.Lines.Assign(StrList);
    Memo.Lines.SaveToFile(Rtf_Name+'_.rtf');
    RichEdit.Lines.LoadFromFile(Rtf_Name+'_.rtf');
    StrList.Destroy;
  end;
end;
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Expert Comment

by:Daniellus83
Comment Utility
Dopors:

I do not program Delphi... I had the same problem with VB.NET... I try to explain how you could do it in Delphi:

> Make a for-loop from n to the length of the box
> in the for-loop: check if this selection is an OBJECT (in stead of text)
> when this is the picture, you should be able to do a replacement

Look at the vb.net code below to see the full idea.


Succes! Daniël


--(here is the VB.NET code; there must be some sort in Delphi!)---------------------------------------------------------------------------------------------------

        Dim n As Integer
        Dim text As String

        For n = 0 To RichTextBox1.TextLength

            'Select piece by piece
            RichTextBox1.Select(n, 1)  

            'Check is this an Object
            If RichTextBox1.SelectionType = RichTextBoxSelectionTypes.Object Then

                    RichTextBox1.Cut  '<<Cut it out!

            End If

        Next
----------------------------------------------
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