1 unit Unit1;
2
3 interface
4
5 uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9 type
10 TForm1 = class(TForm)
11 Edit1: TEdit;
12 Button1: TButton;
13 Memo1: TMemo;
14 Label1: TLabel;
15 Button2: TButton;
16 Button3: TButton;
17 procedure Button1Click(Sender: TObject);
18 procedure Button2Click(Sender: TObject);
19 procedure Button3Click(Sender: TObject);
20 private
21 { Private declarations }
22 public
23 { Public declarations }
24 end ;
25
26 var
27 Form1: TForm1;
28
29 implementation
30
31 { $R *.dfm}
32
33 procedure TForm1.Button1Click(Sender: TObject);
34 var
35 frmRegion, tempRegion: HRGN;
36 i: Integer;
37 Arect: TRect;
38 begin
39 //The interface is fully transparent and the components are semi-transparent--->Transparent background lower layer: continue to operate
40 frmRegion := 0;
41 for i := 0 to ControlCount-1 do
42 begin
43 Arect := Controls[i].BoundsRect;
44 OffsetRect(Arect, clientorigin.x-left, clientorigin.y - top);
45 tempRegion := CreateRectRgnIndirect(Arect);
46 if frmRegion = 0 then
47 frmRegion := tempRegion
48 else
49 begin
50 CombineRgn(frmRegion, frmRegion, tempRegion, RGN_OR);
51 DeleteObject(tempRegion);
52 end;
53 end;
54 tempRegion := CreateRectRgn(0, 0, Width, GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYSIZEFRAME) + GetSystemMetrics(SM_CYMENU) * Ord(Menu <> Nil));
55
56 CombineRgn(frmRegion, frmRegion, tempRegion, RGN_OR);
57 DeleteObject(tempRegion);
58 SetWindowRgn(handle, frmRegion, true);
59 end;
60
61 procedure TForm1.Button2Click(Sender: TObject);
62 begin
63 //The interface is fully transparent and the components are opaque--->Transparent background layer: inoperable
64 Form1.color := clred;
65 Form1.TransparentColorValue := clred;
66 Form1.TransparentColor := true;
67 end;
68
69 procedure TForm1.Button3Click(Sender: TObject);
70 begin
71 //Interface semi-transparent component semi-transparent--->Translucent background lower layer: not operable
72 Form1.AlphaBlend := True;
73 Form1.AlphaBlendValue := 150;
74 end;
75
76 end.
View Code
1 unit Unit1;
2
3 interface
4
5 uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9 type
10 TForm1 = class(TForm)
11 Edit1: TEdit;
12 Button1: TButton;
13 Memo1: TMemo;
14 Label1: TLabel;
15 Button2: TButton;
16 Button3: TButton;
17 procedure Button1Click(Sender: TObject);
18 procedure Button2Click(Sender: TObject);
19 procedure Button3Click(Sender: TObject);
20 private
21 { Private declarations }
22 public
23 { Public declarations }
24 end ;
25
26 var
27 Form1: TForm1;
28
29 implementation
30
31 { $R *.dfm}
32
33 procedure TForm1.Button1Click(Sender: TObject);
34 var
35 frmRegion, tempRegion: HRGN;
36 i: Integer;
37 Arect: TRect;
38 begin
39 //The interface is fully transparent and the components are semi-transparent--->Transparent background lower layer: continue to operate
40 frmRegion := 0;
41 for i := 0 to ControlCount-1 do
42 begin
43 Arect := Controls[i].BoundsRect;
44 OffsetRect(Arect, clientorigin.x-left, clientorigin.y - top);
45 tempRegion := CreateRectRgnIndirect(Arect);
46 if frmRegion = 0 then
47 frmRegion := tempRegion
48 else
49 begin
50 CombineRgn(frmRegion, frmRegion, tempRegion, RGN_OR);
51 DeleteObject(tempRegion);
52 end;
53 end;
54 tempRegion := CreateRectRgn(0, 0, Width, GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYSIZEFRAME) + GetSystemMetrics(SM_CYMENU) * Ord(Menu <> Nil));
55
56 CombineRgn(frmRegion, frmRegion, tempRegion, RGN_OR);
57 DeleteObject(tempRegion);
58 SetWindowRgn(handle, frmRegion, true);
59 end;
60
61 procedure TForm1.Button2Click(Sender: TObject);
62 begin
63 //The interface is fully transparent and the components are opaque--->Transparent background layer: inoperable
64 Form1.color := clred;
65 Form1.TransparentColorValue := clred;
66 Form1.TransparentColor := true;
67 end;
68
69 procedure TForm1.Button3Click(Sender: TObject);
70 begin
71 //Interface semi-transparent component semi-transparent--->Translucent background lower layer: not operable
72 Form1.AlphaBlend := True;
73 Form1.AlphaBlendValue := 150;
74 end;
75
76 end.
View Code
1 unit Unit1;
2
3 interface
4
5 uses
6 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
7 Dialogs, StdCtrls;
8
9 type
10 TForm1 = class(TForm)
11 Edit1: TEdit;
12 Button1: TButton;
13 Memo1: TMemo;
14 Label1: TLabel;
15 Button2: TButton;
16 Button3: TButton;
17 procedure Button1Click(Sender: TObject);
18 procedure Button2Click(Sender: TObject);
19 procedure Button3Click(Sender: TObject);
20 private
21 { Private declarations }
22 public
23 { Public declarations }
24 end ;
25
26 var
27 Form1: TForm1;
28
29 implementation
30
31 { $R *.dfm}
32
33 procedure TForm1.Button1Click(Sender: TObject);
34 var
35 frmRegion, tempRegion: HRGN;
36 i: Integer;
37 Arect: TRect;
38 begin
39 //The interface is fully transparent and the components are semi-transparent--->Transparent background lower layer: continue to operate
40 frmRegion := 0;
41 for i := 0 to ControlCount-1 do
42 begin
43 Arect := Controls[i].BoundsRect;
44 OffsetRect(Arect, clientorigin.x-left, clientorigin.y - top);
45 tempRegion := CreateRectRgnIndirect(Arect);
46 if frmRegion = 0 then
47 frmRegion := tempRegion
48 else
49 begin
50 CombineRgn(frmRegion, frmRegion, tempRegion, RGN_OR);
51 DeleteObject(tempRegion);
52 end;
53 end;
54 tempRegion := CreateRectRgn(0, 0, Width, GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYSIZEFRAME) + GetSystemMetrics(SM_CYMENU) * Ord(Menu <> Nil));
55
56 CombineRgn(frmRegion, frmRegion, tempRegion, RGN_OR);
57 DeleteObject(tempRegion);
58 SetWindowRgn(handle, frmRegion, true);
59 end;
60
61 procedure TForm1.Button2Click(Sender: TObject);
62 begin
63 //The interface is fully transparent and the components are opaque--->Transparent background layer: inoperable
64 Form1.color := clred;
65 Form1.TransparentColorValue := clred;
66 Form1.TransparentColor := true;
67 end;
68
69 procedure TForm1.Button3Click(Sender: TObject);
70 begin
71 //Interface semi-transparent component semi-transparent--->Translucent background lower layer: not operable
72 Form1.AlphaBlend := True;
73 Form1.AlphaBlendValue := 150;
74 end;
75
76 end.