parent即 养父
是指拥有该组件的父类,即parent组件必定是一个窗口控制组件(Windowed control) 由于组件就是容纳该组件的父类,因此当父类移动时,附着其内的组件也会移动.
Object TreeVIew 里表示的就是这种关系.
Owner 生父
何谓Owner?就组件而言 , Owner是指作为其他组件的Owner的父组件,在负责自身 析构时,一起析构它所拥有的其下所Own的组件,也就是于此时释放它自己与它所拥有 组件所占的内存.
是指拥有该组件的父类,即parent组件必定是一个窗口控制组件(Windowed control) 由于组件就是容纳该组件的父类,因此当父类移动时,附着其内的组件也会移动.
Object TreeVIew 里表示的就是这种关系.
1unit Unit1;
2
3interface
4
5uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9type
10 TForm1 = class(TForm)
11 GroupBox1: TGroupBox;
12 Button1: TButton;
13 Button2: TButton;
14 Button3: TButton;
15 Button4: TButton;
16 Button5: TButton;
17 procedure Button5Click(Sender: TObject);
18 procedure Button3Click(Sender: TObject);
19 procedure Button4Click(Sender: TObject);
20 procedure FormCreate(Sender: TObject);
21 private
22 { Private declarations }
23 public
24 { Public declarations }
25 end;
26
27var
28 Form1: TForm1;
29
30implementation
31
32uses Unit2;
33
34VAR
35 PB: boolean;
36{$R *.dfm}
37
38procedure TForm1.Button5Click(Sender: TObject);
39begin
40Form2.show
41end;
42
43procedure TForm1.Button3Click(Sender: TObject);
44begin
45GroupBox1.Top := GroupBox1.Top - 10;
46end;
47
48procedure TForm1.Button4Click(Sender: TObject);
49begin
50 if PB then
51 BEGIN
52 Button2.Parent := Form2;
53 PB := false;
54 END
55 else
56 BEGIN
57 Button2.Parent := Form1.GroupBox1;
58 PB := true;
59 END;
60end;
61
62procedure TForm1.FormCreate(Sender: TObject);
63begin
64Pb := false;
65end;
66
67end.
68
69
2
3interface
4
5uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9type
10 TForm1 = class(TForm)
11 GroupBox1: TGroupBox;
12 Button1: TButton;
13 Button2: TButton;
14 Button3: TButton;
15 Button4: TButton;
16 Button5: TButton;
17 procedure Button5Click(Sender: TObject);
18 procedure Button3Click(Sender: TObject);
19 procedure Button4Click(Sender: TObject);
20 procedure FormCreate(Sender: TObject);
21 private
22 { Private declarations }
23 public
24 { Public declarations }
25 end;
26
27var
28 Form1: TForm1;
29
30implementation
31
32uses Unit2;
33
34VAR
35 PB: boolean;
36{$R *.dfm}
37
38procedure TForm1.Button5Click(Sender: TObject);
39begin
40Form2.show
41end;
42
43procedure TForm1.Button3Click(Sender: TObject);
44begin
45GroupBox1.Top := GroupBox1.Top - 10;
46end;
47
48procedure TForm1.Button4Click(Sender: TObject);
49begin
50 if PB then
51 BEGIN
52 Button2.Parent := Form2;
53 PB := false;
54 END
55 else
56 BEGIN
57 Button2.Parent := Form1.GroupBox1;
58 PB := true;
59 END;
60end;
61
62procedure TForm1.FormCreate(Sender: TObject);
63begin
64Pb := false;
65end;
66
67end.
68
69
Owner 生父
何谓Owner?就组件而言 , Owner是指作为其他组件的Owner的父组件,在负责自身 析构时,一起析构它所拥有的其下所Own的组件,也就是于此时释放它自己与它所拥有 组件所占的内存.
1unit Unit1;
2
3interface
4
5uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9type
10 TForm1 = class(TForm)
11 Edit1: TEdit;
12 Button1: TButton;
13 Button2: TButton;
14 procedure Button2Click(Sender: TObject);
15 private
16 { Private declarations }
17 public
18 { Public declarations }
19 end;
20
21var
22 Form1: TForm1;
23
24implementation
25uses
26 unit2;
27{$R *.dfm}
28
29procedure TForm1.Button2Click(Sender: TObject);
30begin
31Form2.show
32end;
33
34end.
35
36
2
3interface
4
5uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9type
10 TForm1 = class(TForm)
11 Edit1: TEdit;
12 Button1: TButton;
13 Button2: TButton;
14 procedure Button2Click(Sender: TObject);
15 private
16 { Private declarations }
17 public
18 { Public declarations }
19 end;
20
21var
22 Form1: TForm1;
23
24implementation
25uses
26 unit2;
27{$R *.dfm}
28
29procedure TForm1.Button2Click(Sender: TObject);
30begin
31Form2.show
32end;
33
34end.
35
36