TMyImage von Nightshade --> Transparente Bilder??

[Speedmaster]

Wie kann ich durchsichtige Bilder bei der Komponente von Nightshade realisieren??
Bisher habe ich folgendes versucht(Habe noch nie eine Komponente entwickelt, und habe daher praktisch null Ahnung):

Delphi-Quellcode:

unit MyImage; 
 
interface 
 
uses 
  SysUtils, Classes, Controls, ExtCtrls, Graphics, Messages; 
 
type TMyImage =class(TImage) 
  private 
    FOnMouseEnter: TNotifyEvent; 
    FOnMouseLeave: TNotifyEvent; 
    FMLPic: TPicture; 
    FMEPic: TPicture; 
    procedure CMMouseEnter(var Message: TMessage); message CM_MOUSEENTER; 
    procedure CMMouseLeave(var Message: TMessage); message CM_MOUSELEAVE; 
    procedure SetMEPic(const Value: TPicture); 
    procedure SetMLPic(const Value: TPicture); 
  protected 
  public 
    TransparenySec: Boolean; 
    constructor Create(AOwner : TComponent); override; 
    destructor Destroy; override; 
  published 
    property OnMouseEnter : TNotifyEvent read FOnMouseEnter Write FOnMouseEnter; 
    property OnMouseLeave : TNotifyEvent read FOnMouseLeave Write FOnMouseLeave; 
    property MouseEnterPicture : TPicture read FMEPic write SetMEPic; 
    property MouseLeavePicture : TPicture read FMLPic write SetMLPic; 
end; 
 
procedure Register; 
 
implementation 
 
procedure Register; 
begin 
  RegisterComponents('Zusätzlich', [TMyImage]); 
end; 
 
 
{ TMyImage } 
 
procedure TMyImage.CMMouseEnter(var Message: TMessage); 
begin 
  if Message.Msg=CM_MOUSEENTER then begin 
    if csDesigning in ComponentState then begin 
      if FMLPic.Bitmap <> NIL then picture.Bitmap.Assign(FMLPic.Bitmap); 
    end 
    else begin 
      if FMEPic.Bitmap <> NIL then picture.Bitmap.Assign(FMEPic.Bitmap); 
    end; 
    if ( Assigned(FOnMouseEnter) ) then FOnMouseEnter(self); 
    Picture.Bitmap.TransparentMode := tmFixed; 
    Picture.Bitmap.TransparentColor := clBlack; 
    Picture.Bitmap.Transparent := TransparenySec; 
    repaint; 
  end; 
end; 
 
procedure TMyImage.CMMouseLeave(var Message: TMessage); 
begin 
  if Message.Msg=CM_MOUSELEAVE then begin 
    if FMLPic.Bitmap <> NIL then picture.Bitmap.Assign(FMLPic.Bitmap); 
    if ( Assigned(FOnMouseLeave) ) then FOnMouseLeave(self); 
    repaint; 
  end; 
end; 
 
constructor TMyImage.Create(AOwner: TComponent); 
begin 
  inherited; 
  FMLPic := TPicture.Create; 
  FMEPic := TPicture.Create; 
end; 
 
destructor TMyImage.Destroy; 
begin 
  FreeAndNil(FMLPic); 
  FreeAndNil(FMEPic); 
  inherited; 
end; 
 
procedure TMyImage.SetMEPic(const Value: TPicture); 
begin 
  FMEPic.Bitmap.Assign(Value.Bitmap); 
end; 
 
procedure TMyImage.SetMLPic(const Value: TPicture); 
begin 
  FMLPic.Bitmap.Assign(Value.Bitmap); 
end; 
 
 
end.

Hier gibts den Orginal Code!

Und nein, mit Transparency im Objektinspektor auf "True" Funktioniert es nicht!