DIY Delphi 半透明窗体(2)

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unit uMainForm;interfaceuses  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,  Dialogs, GDIPOBJ,GDIPAPI,GDIPUTIL;type  TForm1 = class(TForm)    procedure FormCreate(Sender: TObject);    procedure FormShow(Sender: TObject);  private    { Private declarations }  public    procedure DrawImage(Sender: TObject);    { Public declarations }  end;var  Form1: TForm1;implementationuses xDrawForm;var  wwCanvas : TwwCanvas = nil;  img_BackGround:   TwwGDIImage= nil;       // 背景图//  img_ProgressBar1:  TwwGDIImage= nil;      // 上滚动条//  img_ProgressBar2:  TwwGDIImage= nil;      // 下滚动条//  img_Lighting:     TwwGDIImage= nil;       // 闪光点{$R *.dfm}procedure TForm1.DrawImage(Sender: TObject);begin   TwwCanvas(Sender).wwDrawImage(img_BackGround);end;procedure TForm1.FormCreate(Sender: TObject);begin  DoubleBuffered := True;  BorderStyle := bsNone;  wwCanvas := TwwCanvas.Create();  wwCanvas.InitCanvas(872,690);  wwCanvas.OnDrawImage := Self.DrawImage;  img_BackGround := TwwGDIImage.Create();  img_BackGround.CreateImageNormal('BackGround.png',0,0,872,690);end;procedure TForm1.FormShow(Sender: TObject);begin  wwCanvas.RePaint(Self.Handle);end;end.