|
在Delphi 7下要制作系统托盘，只能制作一个比较简单的系统托盘，因为ShellAPI文件定义的TNotifyIconData结构体是比较早的版本。定义如下：
1
2
3
4
5
6
7
8
9 |
|
_NOTIFYICONDATAA = record
cbSize: DWORD;
Wnd: HWND;
uID: UINT;
uFlags: UINT;
uCallbackMessage: UINT;
hIcon: HICON;
szTip: array [0..63] of AnsiChar;
end; |
下面开始实现下最小化到系统托盘功能：
1.新建应用程序，然后在“菜单栏”→“Project”→“Options”→”Application“为程序设定下标题和图标，一定得设置图标，不让显示系统托盘的时候就会空白；
2.在窗体上放置一个右键菜单，添加两个菜单项，如下图所示：
3.窗体单元文件代码如下：
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91 |
|
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ShellAPI, Menus;
const
WM_TRAYMSG = WM_USER + 101; //自定义托盘消息
type
TForm1 = class(TForm)
pm1: TPopupMenu;
mniN1: TMenuItem;
mniwo1: TMenuItem;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure mniN1Click(Sender: TObject);
private
procedure WMTrayMsg(var Msg: TMessage);message WM_TRAYMSG; //声明托盘消息
procedure WMSysCommand(var Msg: TMessage);message WM_SYSCOMMAND;
public
{ Public declarations }
end;
var
Form1: TForm1;
NotifyIcon: TNotifyIconData; //定义托盘图标结构体
implementation
{$R *.dfm}
{-------------------------------------------------------------------------------
Description: 窗体创建时，即创建托盘
-------------------------------------------------------------------------------}
procedure TForm1.FormCreate(Sender: TObject);
begin
with NotifyIcon do
begin
cbSize := SizeOf(TNotifyIconData);
Wnd := Self.Handle;
uID := 1;
uFlags := NIF_ICON + NIF_MESSAGE + NIF_TIP; //图标、消息、提示信息
uCallbackMessage := WM_TRAYMSG;
hIcon := Application.Icon.Handle;
szTip := '托盘测试';
end;
Shell_NotifyIcon(NIM_ADD,@NotifyIcon);
end;
{-------------------------------------------------------------------------------
Description: 窗体销毁时，卸载托盘
-------------------------------------------------------------------------------}
procedure TForm1.FormDestroy(Sender: TObject);
begin
Shell_NotifyIcon(NIM_DELETE,@NotifyIcon);
end;
{-------------------------------------------------------------------------------
Description: 截获窗体最小化消息，最小化到托盘
-------------------------------------------------------------------------------}
procedure TForm1.WMSysCommand(var Msg: TMessage);
begin
if Msg.WParam = SC_ICON then
Self.Visible := False
else
DefWindowProc(Self.Handle,Msg.Msg,Msg.WParam,Msg.LParam);
end;
{-------------------------------------------------------------------------------
Description: 自定义的托盘消息
-------------------------------------------------------------------------------}
procedure TForm1.WMTrayMsg(var Msg: TMessage);
var
p: TPoint;
begin
case Msg.LParam of
WM_LBUTTONDOWN: Self.Visible := True; //显示窗体
WM_RBUTTONDOWN:
begin
SetForegroundWindow(Self.Handle); //把窗口提前
GetCursorPos(p);
pm1.Popup(p.X,p.Y);
end;
end;
end;
{-------------------------------------------------------------------------------
Description: 测试菜单项
-------------------------------------------------------------------------------}
procedure TForm1.mniN1Click(Sender: TObject);
begin
ShowMessage('One');
end;
end. |
4.运行结果如下：
参考MSDN（http://msdn.microsoft.com/en-us/library/bb773352(VS.85).aspx）对NOTIFYICONDATA结构体的介绍却是：
typedef struct _NOTIFYICONDATA {
DWORD cbSize; //结构体的大小，以字节为单位
HWND hWnd; //窗口的句柄
UINT uID; //应用程序定义的任务栏图标的标识符
UINT uFlags; //此成员表明具体哪些其他成员为合法数据
UINT uCallbackMessage; //应用程序定义的消息标示
HICON hIcon; //增加、修改或删除的图标的句柄
TCHAR szTip[64]; //指向一个以/0结束的字符串的指针
DWORD dwState; //Version 5.0，图标的状态
DWORD dwStateMask; //Version 5.0. 指明dwState成员的那些位可以被设置或者访问
TCHAR szInfoTitle[64]; //指向一个以/0结束的字符串的指针。字符串的内容为气球提示的标题
DWORD dwInfoFlags; //设置此成员用来给气球提示框增加一个图标,增加的图标出现在气球提示标题的左侧
GUID guidItem; //保留
HICON hBalloonIcon; //用于Windows Vista或更高版本的自定义气球图标
} NOTIFYICONDATA, *PNOTIFYICONDATA;
|
那么为了在Windows XP下也有气泡提示，那么我们手动添加几个类型，大概代码如下：
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82 |
|
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ShellAPI, Menus;
//---------------------开始：Delphi 7下添加此声明-------------------------------
const
NIF_INFO = $00000010; //气泡显示标志
NIIF_NONE = $00000000; //无图标
NIIF_INFO = $00000001; //信息图标
NIIF_WARNING = $00000002; //警告图标
NIIF_ERROR = $00000003; //错误图标
NIIF_USER = $00000004; //XP使用hIcon图标
type
TNotifyIconDataEx = record
cbSize: DWORD;
Wnd: HWND;
uID: UINT;
uFlags: UINT;
uCallbackMessage: UINT;
hIcon: HICON;
szTip: array [0..127] of AnsiChar;
dwState: DWORD;
dwStateMask: DWORD;
szInfoTitle := '气泡标题';
dwInfoFlags := NIIF_USER;
end;
Shell_NotifyIcon(NIM_ADD,@NotifyIcon);
end;
{-------------------------------------------------------------------------------
……以下代码与上面例子一样
-------------------------------------------------------------------------------}
|
运行结果如下：
http://blog.csdn.net/zisongjia/article/details/68067370
|
客服电话
APP下载
官方微信
请发表评论