ScrollBox & Gtk2 very slow, is it a bug?
lazarus / 1-Linux

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luigi65 · 2008-11-03 13:19

I must have capture mouse movement over a scrollbox, but I have noted
this occurs very slow if compile my application with gtk2 widget
(Lazarus 0.9.26 on Fedora 8 ).

To try this I have used the following code:

Code: [Select]
unit Unit1;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs,
  StdCtrls, ExtCtrls;

type

  { TForm1 }

  TForm1 = class(TForm)
    Label1: TLabel;
    ScrollBox1: TScrollBox;
    procedure ScrollBox1MouseMove(Sender: TObject; Shift: TShiftState;
X,
      Y: Integer);

  private
    { private declarations }
  public
    { public declarations }
  end;

var
  Form1: TForm1;

implementation

{ TForm1 }

procedure TForm1.ScrollBox1MouseMove(Sender: TObject; Shift:
TShiftState; X,
  Y: Integer);
begin
  Label1.Caption:=IntToStr(X)+'; '+IntToStr(Y);
end;

initialization
  {$I unit1.lrs}

end.


The caption of Label1 changes slowly, this not happens if I compile
with gtk widget.

This behavior is a bug?


Thanks