unit UnitMagn; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, G32_RangeBars; type TFormMagn = class(TForm) Label3: TLabel; MagnOpacity: TGaugeBar; Label5: TLabel; MagnRotation: TGaugeBar; MagnInterpolate: TCheckBox; procedure MagnOpacityChange(Sender: TObject); procedure MagnMagnificationChange(Sender: TObject); procedure MagnRotationChange(Sender: TObject); private { Private declarations } public { Public declarations } end; var FormMagn: TFormMagn; implementation uses MainUnit; {$R *.DFM} procedure TFormMagn.MagnOpacityChange(Sender: TObject); begin MainForm.ImgView.Invalidate; end; procedure TFormMagn.MagnMagnificationChange(Sender: TObject); begin MainForm.ImgView.Invalidate; end; procedure TFormMagn.MagnRotationChange(Sender: TObject); begin MainForm.ImgView.Invalidate; end; end.