<div>
You could always fake it with hiding the vertical scrollbar (visible:=false) &nbsp;in both scrollboxes and put in a TScrollbar with something like:<br />
<br />
procedure TForm1.ScrollBar1Change(Se<wbr />nder: TObject);<br />
begin<br />
&nbsp; ScrollBox1.VertScrollBar.P<wbr />osition:=S<wbr />crollbar1.<wbr />Position;<br />
&nbsp; ScrollBox2.VertScrollBar.P<wbr />osition:=S<wbr />crollbar1.<wbr />Position;<br />
end;<br />

</div>


You could always fake it with hiding the vertical scrollbar (visible:=false)  in both scrollboxes and put in a TScrollbar with something like:

procedure TForm1.ScrollBar1Change(Sender: TObject);
begin
  ScrollBox1.VertScrollBar.Position:=Scrollbar1.Position;
  ScrollBox2.VertScrollBar.Position:=Scrollbar1.Position;
end;


<div>
I hope that I still can use both V and H ScrollBar in two ScrollBox, then I hope they can scroll simultaneous, do you have any idea?<br />
By the way, can you explain more detail about your idea?
</div>


I hope that I still can use both V and H ScrollBar in two ScrollBox, then I hope they can scroll simultaneous, do you have any idea?
By the way, can you explain more detail about your idea?

<div>
<div class="content wysiwyg-content">
I have two ScrollBox on form, they have the same size, when I scroll one of them, I hope another will be scrolled simultaneous, what can I do?
</div>
</div>


I have two ScrollBox on form, they have the same size, when I scroll one of them, I hope another will be scrolled simultaneous, what can I do?

How to scoll two ScrollBox simultaneous

Delphi is the most powerful Object Pascal IDE and component library for cross-platform Native App Development with flexible Cloud services and broad IoT connectivity. It provides powerful VCL controls for Windows 10 and enables FMX development for Windows, Mac and Mobile. Delphi is your choice for ultrafast Enterprise Strong Development™. Look for increased memory for large projects, extended multi-monitor support, improved Object Inspector and much more. Delphi is 5x faster for development and deployment across multiple desktop, mobile, cloud and database platforms including 32-bit and 64-bit Windows 10.