DIY Delphi 半透明窗体(2)

写文章的时候 脑子有点乱 

unit uMainForm;


interface


uses
  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;


implementation
uses 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.