在Delphi中實現任意形狀的窗體 (轉)

在Delphi中實現任意形狀的窗體 (轉)[@more@]

Form的TEXT：

Form1: TForm1
  Left = 192
  Top = 107
  BorderStyle = bsNone
  Caption = 'Form1'
  ClientHeight = 348
  ClientWidth = 536
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = False
  OnCreate = Button1Click
  PixelsPerInch = 96
  TextHeight = 13
  object Button1: TButton
  Left = 392
  Top = 152
  Width = 75
  Height = 25
  Caption = 'Button1'
  TabOrder = 0
  OnClick = Button1Click
  end
  object Button2: TButton
  Left = 432
  Top = 24
  Width = 17
  Height = 17
  Caption = 'Button2'
  TabOrder = 1
  OnClick = Button2Click
  end
  object Button3: TButton
  Left = 448
  Top = 40
  Width = 17
  Height = 17
  Caption = 'Button2'
  TabOrder = 2
  OnClick = Button3Click
  end
  object Button4: TButton
  Left = 464
  Top = 56
  Width = 17
  Height = 17
  Caption = 'Button2'
  TabOrder = 3
  OnClick = Button4Click
  end
end

各種不同的事件聲名：

  TForm1 = class(TForm)
  Button1: TButton;
  Button2: TButton;
  Button3: TButton;
  Button4: TButton;
  procedure Button1Click(Sender: TObject);
  procedure Button2Click(Sender: TObject);
  procedure Button3Click(Sender: TObject);
  procedure Button4Click(Sender: TObject);
  private
  procedure WMmove(var Message: TWMNCHITTEST); Message WM_NCHITTEST;
  { Private declarations }
  public
  { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.WMmove(var Message: TWMNCHITTEST);
begin
  Message.Result :=  HTCAPTION;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
R1,R2,R3,R4,R5: HRGN;
begin
  R1 := CreateEllipticRgn(0,0,Round(ClientWidth / 2),ClientHeight);
  R2 := CreateEllipticRgn(Round(ClientWidth / 2),0,ClientWidth,ClientHeight);
  R3 := CreateEllipticRgn(Round(ClientWidth / 4 ),Round(ClientHeight / 4 *3),Round(ClientWidth / 4 *3),ClientHeight);
  R4 := CreateRectRgn(0,0,0,0);
  R5 := CreateRectRgn(0,0,0,0);
  CombineRgn(R4,R2,R1,RGN_or);
  CombineRgn(R5,R4,R3,RGN_or);

  SetWindowRGN(Handle,R5,True);
  DeleteObject(R1);
  DeleteObject(R2);
  DeleteObject(R3);
  DeleteObject(R4);
  DeleteObject(R5);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  SendMessage(Handle,WM_SYMMAND,SC_MINIMIZE,0);
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  SendMessage(Handle,WM_SYSCOMMAND,SC_DEFAULT,0);
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  Application.Tenate;
end;

end.