ScrollBox Scrolling using different control ??
lazarus / 39-Graphics

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Josh · 2018-03-23 14:10

Hi

Hope this is somwthing silly that I have missed.

I am playing around with a Tscrollbox, but want to use a different
scroll control; something lile attscroll control. as it themes much
better than the native one.

If I control the scrollbox.verticalscroll.position parameter with the
other control; it will only scroll the scrollbox if the scrollbox own
scrollbars are visible.
So how to scroll a scrollbox that does not have the scrollbars
visible?

attached program using standard controls, a progress bar for
scrolling.

I suspect It's something silly I have missed.

Thanks

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ASerge · 2018-03-23 17:27

If you do not need a scrollbar, do not use the TScrollBox. The usual
TPanel is also suitable:
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i ... 
private    FPrevPos: Integer;...procedure
TForm1.TrackBar1Change(Sender: TObject);var  NewPos: Integer;begin 
NewPos := TrackBar1.Position;  Panel1.ScrollBy(0, NewPos - FPrevPos); 
FPrevPos := NewPos;end;

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Josh · 2018-03-23 20:55

Hi ASerge.

I have come to the same conclusion; using panel within panel; works
very well and smooth with doublebuffer on form and panels.

Thanks