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...scroll TWebBrowser with own buttons?
Autor: boegi
Homepage: http://www.boegi.de
[ Print tip ]  

Tip Rating (35):  
     


// Scroll up
procedure TForm1.Button1Click(Sender: TObject);
begin
  
WebBrowser1.OleObject.Document.ParentWindow.ScrollBy(0, -100);
end;

// Scroll left
procedure TForm1.Button3Click(Sender: TObject);
begin
  
WebBrowser1.OleObject.Document.ParentWindow.ScrollBy(-100, 0);
end;

// Scroll down
procedure TForm1.Button2Click(Sender: TObject);
begin
  
WebBrowser1.OleObject.Document.ParentWindow.ScrollBy(0, +100);
end;

// Scroll right
procedure TForm1.Button4Click(Sender: TObject);
begin
  
WebBrowser1.OleObject.Document.ParentWindow.ScrollBy(+100, 0);
end;

// Scroll to the Bottom, Top, Right of the Document:
type
  
TWBPosition = (wbPosBottom, wbPosTop, wbPosRight);

function WB_ScrollTo(WB: TWebBrowser; Position: TWBPosition): Boolean;
var
  
ParentW: OLEVariant;
begin
  
Result := WB.Document <> nil;
  if Result then
  begin
    
ParentW := WB.OleObject.Document.ParentWindow;
    case Position of
      
wbPosBottom: ParentW.ScrollTo(0, ParentW.Screen.Height);
      wbPosTop: ParentW.ScrollTo(0, 0);
      wbPosRight: ParentW.ScrollTo(ParentW.Screen.Width, 0);
    end;
  end;
end;

// Example: Scroll to the bottom of the document:
procedure TForm1.Button1Click(Sender: TObject);
begin
  
WB_ScrollTo(WebBrowser1, wbPosBottom);
end;

 

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