whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1541)

Database (90)
Files (137)
Forms (107)
Graphic (114)
IDE (21)
Indy (5)
Internet / LAN (130)
IntraWeb (0)
Math (76)
Misc (126)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (266)
VCL (242)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

81 Visitors Online


 
...find and highlight text in TWebBrowser?
Autor: sTenYa
[ Print tip ]  

Tip Rating (30):  
     


{....}

private
  procedure 
SearchAndHighlightText(aText: string);
    
{....}

uses mshtml;

{ .... }


procedure TForm1.SearchAndHighlightText(aText: string);
var
  
tr: IHTMLTxtRange; //TextRange Object
begin
  if not 
WebBrowser1.Busy then
  begin
    
tr := ((WebBrowser1.Document as IHTMLDocument2).body as IHTMLBodyElement).createTextRange;
    //Get a body with IHTMLDocument2 Interface and then a TextRang obj. with IHTMLBodyElement Intf.

    
while tr.findText(aText, 1, 0) do //while we have result
    
begin
      
tr.pasteHTML('<span style="background-color: Lime; font-weight: bolder;">' +
        tr.htmlText + '</span>');
      //Set the highlight, now background color will be Lime
      
tr.scrollIntoView(True);
      //When IE find a match, we ask to scroll the window... you dont need this...
    
end;
  end;
end;

// Example:
procedure TForm1.Button1Click(Sender: TObject);
begin
  
SearchAndHighlightText('delphi');
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners