Windows 2000/XP和2003等支持一种叫做"服务程序"的东西.程序作为服务启动有以下几个好处:
(1)不用登陆进系统即可运行.
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
笔者在2003年为一公司开发机顶盒项目的时候,曾经写过课件上传和媒体服务,下面就介绍一下如何用Delphi7创建一个Service程序.
运行Delphi7,选择菜单File-->New-->Other--->Service Application.将生成一个服务程序的框架.将工程保存为ServiceDemo.dpr和Unit_Main.pas,然后回到主框架.我们注意到,Service有几个属性.其中以下几个是我们比较常用的:
(1)DisplayName:服务的显示名称
(2)Name:服务名称.
我们在这里将DisplayName的值改为"Delphi服务演示程序",Name改为"DelphiService".编译这个项目,将得到 ServiceDemo.exe.这已经是一个服务程序了!进入CMD模式,切换致工程所在目录,运行命令"ServiceDemo.exe /install",将提示服务安装成功!然后"net start DelphiService"将启动这个服务.进入控制面版-->管理工具-->服务,将显示这个服务和当前状态.不过这个服务现在什么也干不了,因为我们还没有写代码:)先"net stop DelphiService"停止再"ServiceDemo.exe /uninstall"删除这个服务.回到Delphi7的IDE.
我们的计划是为这个服务添加一个主窗口,运行后任务栏显示程序的图标,双击图标将显示主窗口,上面有一个按钮,点击该按钮将实现Ctrl+Alt+Del功能.
实际上,服务程序莫认是工作于Winlogon桌面的,可以打开控制面板,查看我们刚才那个服务的属性-->登陆,其中"允许服务与桌面交互 "是不打钩的.怎么办?呵呵,回到IDE,注意那个布尔属性:Interactive,当这个属性为True的时候,该服务程序就可以与桌面交互了.
File-->New-->Form为服务添加窗口FrmMain,单元保存为Unit_FrmMain,并且把这个窗口设置为手工创建.完成后的代码如下:
01 | unit Unit_Main; |
02 | |
03 | interface |
04 | |
05 | uses |
06 | Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; |
07 | |
08 | type |
09 | TDelphiService = class (TService) |
10 | procedure ServiceContinue(Sender: TService; var Continued: Boolean ); |
11 | procedure ServiceExecute(Sender: TService); |
12 | procedure ServicePause(Sender: TService; var Paused: Boolean ); |
13 | procedure ServiceShutdown(Sender: TService); |
14 | procedure ServiceStart(Sender: TService; var Started: Boolean ); |
15 | procedure ServiceStop(Sender: TService; var Stopped: Boolean ); |
16 | private |
17 | { Private declarations } |
18 | public |
19 | function GetServiceController: TServiceController; override; |
20 | { Public declarations } |
21 | end ; |
22 | |
23 | var |
24 | DelphiService: TDelphiService; |
25 | FrmMain: TFrmMain; |
26 | implementation |
27 | |
28 | {$R *.DFM} |
29 | |
30 | procedure ServiceController(CtrlCode: DWord); stdcall; |
31 | begin |
32 | DelphiService . Controller(CtrlCode); |
33 | end ; |
34 | |
35 | function TDelphiService . GetServiceController: TServiceController; |
36 | begin |
37 | Result := ServiceController; |
38 | end ; |
39 | |
40 | procedure TDelphiService . ServiceContinue(Sender: TService; |
41 | var Continued: Boolean ); |
42 | begin |
43 | while not Terminated do |
44 | begin |
45 | Sleep( 10 ); |
46 | ServiceThread . ProcessRequests( False ); |
47 | end ; |
48 | end ; |
49 | |
50 | procedure TDelphiService . ServiceExecute(Sender: TService); |
51 | begin |
52 | while not Terminated do |
53 | begin |
54 | Sleep( 10 ); |
55 | ServiceThread . ProcessRequests( False ); |
56 | end ; |
57 | end ; |
58 | |
59 | procedure TDelphiService . ServicePause(Sender: TService; |
60 | var Paused: Boolean ); |
61 | begin |
62 | Paused := True ; |
63 | end ; |
64 | |
65 | procedure TDelphiService . ServiceShutdown(Sender: TService); |
66 | begin |
67 | gbCanClose := true ; |
68 | FrmMain . Free; |
69 | Status := csStopped; |
70 | ReportStatus(); |
71 | end ; |
72 | |
73 | procedure TDelphiService . ServiceStart(Sender: TService; |
74 | var Started: Boolean ); |
75 | begin |
76 | Started := True ; |
77 | Svcmgr . Application . CreateForm(TFrmMain, FrmMain); |
78 | gbCanClose := False ; |
79 | FrmMain . Hide; |
80 | end ; |
81 | |
82 | procedure TDelphiService . ServiceStop(Sender: TService; |
83 | var Stopped: Boolean ); |
84 | begin |
85 | Stopped := True ; |
86 | gbCanClose := True ; |
87 | FrmMain . Free; |
88 | end ; |
89 | |
90 | end . |
主窗口单元如下:
001 | unit Unit_FrmMain; |
002 | |
003 | interface |
004 | |
005 | uses |
006 | Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, |
007 | Dialogs, ExtCtrls, StdCtrls; |
008 | |
009 | const |
010 | WM_TrayIcon = WM_USER + 1234 ; |
011 | type |
012 | TFrmMain = class (TForm) |
013 | Timer1: TTimer; |
014 | Button1: TButton; |
015 | procedure FormCreate(Sender: TObject); |
016 | procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean ); |
017 | procedure FormDestroy(Sender: TObject); |
018 | procedure Timer1Timer(Sender: TObject); |
019 | procedure Button1Click(Sender: TObject); |
020 | private |
021 | { Private declarations } |
022 | IconData: TNotifyIconData; |
023 | procedure AddIconToTray; |
024 | procedure DelIconFromTray; |
025 | procedure TrayIconMessage( var Msg: TMessage); message WM_TrayIcon; |
026 | procedure SysButtonMsg( var Msg: TMessage); message WM_SYSCOMMAND; |
027 | public |
028 | { Public declarations } |
029 | end ; |
030 | |
031 | var |
032 | FrmMain: TFrmMain; |
033 | gbCanClose: Boolean ; |
034 | implementation |
035 | |
036 | {$R *.dfm} |
037 | |
038 | procedure TFrmMain . FormCreate(Sender: TObject); |
039 | begin |
040 | FormStyle := fsStayOnTop; |
041 | SetWindowLong(Application . Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); |
042 | gbCanClose := False ; |
043 | Timer1 . Interval := 1000 ; |
044 | Timer1 . Enabled := True ; |
045 | end ; |
046 | |
047 | procedure TFrmMain . FormCloseQuery(Sender: TObject; var CanClose: Boolean ); |
048 | begin |
049 | CanClose := gbCanClose; |
050 | if not CanClose then |
051 | begin |
052 | Hide; |
053 | end ; |
054 | end ; |
055 | |
056 | procedure TFrmMain . FormDestroy(Sender: TObject); |
057 | begin |
058 | Timer1 . Enabled := False ; |
059 | DelIconFromTray; |
060 | end ; |
061 | |
062 | procedure TFrmMain . AddIconToTray; |
063 | begin |
064 | ZeroMemory(@IconData, SizeOf(TNotifyIconData)); |
065 | IconData . cbSize := SizeOf(TNotifyIconData); |
066 | IconData . Wnd := Handle; |
067 | IconData . uID := 1 ; |
068 | IconData . uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; |
069 | IconData . uCallbackMessage := WM_TrayIcon; |
070 | IconData . hIcon := Application . Icon . Handle; |
071 | IconData . szTip := Delphi服务演示程序; |
072 | Shell_NotifyIcon(NIM_ADD, @IconData); |
073 | end ; |
074 | |
075 | procedure TFrmMain . DelIconFromTray; |
076 | begin |
077 | Shell_NotifyIcon(NIM_DELETE, @IconData); |
078 | end ; |
079 | |
080 | procedure TFrmMain . SysButtonMsg( var Msg: TMessage); |
081 | begin |
082 | if (Msg . wParam = SC_CLOSE) or |
083 | (Msg . wParam = SC_MINIMIZE) then Hide |
084 | else inherited ; // 执行默认动作 |
085 | end ; |
086 | |
087 | procedure TFrmMain . TrayIconMessage( var Msg: TMessage); |
088 | begin |
089 | if (Msg . LParam = WM_LBUTTONDBLCLK) then Show(); |
090 | end ; |
091 | |
092 | procedure TFrmMain . Timer1Timer(Sender: TObject); |
093 | begin |
094 | AddIconToTray; |
095 | end ; |
096 | |
097 | procedure SendHokKey;stdcall; |
098 | var |
099 | HDesk_WL: HDESK; |
100 | begin |
101 | HDesk_WL := OpenDesktop (Winlogon, 0 , False , DESKTOP_JOURNALPLAYBACK); |
102 | if (HDesk_WL <> 0 ) then |
103 | if (SetThreadDesktop (HDesk_WL) = True ) then |
104 | PostMessage(HWND_BROADCAST, WM_HOTKEY, 0 , MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); |
105 | end ; |
106 | |
107 | procedure TFrmMain . Button1Click(Sender: TObject); |
108 | var |
109 | dwThreadID : DWORD; |
110 | begin |
111 | CreateThread( nil , 0 , @SendHokKey, nil , 0 , dwThreadID); |
112 | end ; |
113 | |
114 | end . |
补充:
(1)关于更多服务程序的演示程序,请访问以下 ,上面包含了多个演示如何控制和管理系统服务的代码.
(2)请切记:Windows实际上存在多个桌面.例如屏幕传输会出现白屏,可能有两个原因:一是系统处于锁定或未登陆桌面,二是处于屏幕保护桌面.这时候要将当前桌面切换到该桌面才能抓屏.
(3)关于服务程序与桌面交互,还有种动态切换方法.大概单元如下:
01 | unit ServiceDesktop; |
02 | |
03 | interface |
04 | |
05 | function InitServiceDesktop: boolean ; |
06 | procedure DoneServiceDeskTop; |
07 | |
08 | implementation |
09 | |
10 | uses Windows, SysUtils; |
11 | |
12 | const |
13 | DefaultWindowStation = WinSta0; |
14 | DefaultDesktop = Default; |
15 | var |
16 | hwinstaSave: HWINSTA; |
17 | hdeskSave: HDESK; |
18 | hwinstaUser: HWINSTA; |
19 | hdeskUser: HDESK; |
20 | function InitServiceDesktop: boolean ; |
21 | var |
22 | dwThreadId: DWORD; |
23 | begin |
24 | dwThreadId := GetCurrentThreadID; |
25 | // Ensure connection to service window station and desktop, and |
26 | // save their handles. |
27 | hwinstaSave := GetProcessWindowStation; |
28 | hdeskSave := GetThreadDesktop(dwThreadId); |
29 | |
30 | |
31 | hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE , MAXIMUM_ALLOWED); |
32 | if hwinstaUser = 0 then |
33 | begin |
34 | OutputDebugString( PChar (OpenWindowStation failed + SysErrorMessage(GetLastError))); |
35 | Result := false ; |
36 | exit; |
37 | end ; |
38 | |
39 | if not SetProcessWindowStation(hwinstaUser) then |
40 | begin |
41 | OutputDebugString(SetProcessWindowStation failed); |
42 | Result := false ; |
43 | exit; |
44 | end ; |
45 | |
46 | hdeskUser := OpenDesktop(DefaultDesktop, 0 , FALSE , MAXIMUM_ALLOWED); |
47 | if hdeskUser = 0 then |
48 | begin |
49 | OutputDebugString(OpenDesktop failed); |
50 | SetProcessWindowStation(hwinstaSave); |
51 | CloseWindowStation(hwinstaUser); |
52 | Result := false ; |
53 | exit; |
54 | end ; |
55 | Result := SetThreadDesktop(hdeskUser); |
56 | if not Result then |
57 | OutputDebugString( PChar (SetThreadDesktop + SysErrorMessage(GetLastError))); |
58 | end ; |
59 | |
60 | procedure DoneServiceDeskTop; |
61 | begin |
62 | // Restore window station and desktop. |
63 | SetThreadDesktop(hdeskSave); |
64 | SetProcessWindowStation(hwinstaSave); |
65 | if hwinstaUser <> 0 then |
66 | CloseWindowStation(hwinstaUser); |
67 | if hdeskUser <> 0 then |
68 | CloseDesktop(hdeskUser); |
69 | end ; |
70 | |
71 | initialization |
72 | InitServiceDesktop; |
73 | finalization |
74 | DoneServiceDesktop; |
75 | end . |
更详细的演示代码请参看:
(4)关于安装服务如何添加服务描述.有两种方法:一是修改注册表.服务的详细信息都位于HKEY_LOCAL_MACHINE\SYSTEM\ ControlSet001\Services\下面,例如我们刚才那个服务就位于HKEY_LOCAL_MACHINE\SYSTEM\ ControlSet001\Services\DelphiService下.第二种方法就是先用QueryServiceConfig2函数获取服务信息,然后ChangeServiceConfig2来改变描述.用Delphi实现的话,单元如下:
001 | unit WinSvcEx; |
002 | |
003 | interface |
004 | |
005 | uses Windows, WinSvc; |
006 | |
007 | const |
008 | // |
009 | // Service config info levels |
010 | // |
011 | SERVICE_CONFIG_DESCRIPTION = 1 ; |
012 | SERVICE_CONFIG_FAILURE_ACTIONS = 2 ; |
013 | // |
014 | // DLL name of imported functions |
015 | // |
016 | AdvApiDLL = advapi32 . dll; |
017 | type |
018 | // |
019 | // Service description string |
020 | // |
021 | PServiceDescriptionA = ^TServiceDescriptionA; |
022 | PServiceDescriptionW = ^TServiceDescriptionW; |
023 | PServiceDescription = PServiceDescriptionA; |
024 | {$EXTERNALSYM _SERVICE_DESCRIPTIONA} |
025 | _SERVICE_DESCRIPTIONA = record |
026 | lpDescription : PAnsiChar ; |
027 | end ; |
028 | {$EXTERNALSYM _SERVICE_DESCRIPTIONW} |
029 | _SERVICE_DESCRIPTIONW = record |
030 | lpDescription : PWideChar ; |
031 | end ; |
032 | {$EXTERNALSYM _SERVICE_DESCRIPTION} |
033 | _SERVICE_DESCRIPTION = _SERVICE_DESCRIPTIONA; |
034 | {$EXTERNALSYM SERVICE_DESCRIPTIONA} |
035 | SERVICE_DESCRIPTIONA = _SERVICE_DESCRIPTIONA; |
036 | {$EXTERNALSYM SERVICE_DESCRIPTIONW} |
037 | SERVICE_DESCRIPTIONW = _SERVICE_DESCRIPTIONW; |
038 | {$EXTERNALSYM SERVICE_DESCRIPTION} |
039 | SERVICE_DESCRIPTION = _SERVICE_DESCRIPTIONA; |
040 | TServiceDescriptionA = _SERVICE_DESCRIPTIONA; |
041 | TServiceDescriptionW = _SERVICE_DESCRIPTIONW; |
042 | TServiceDescription = TServiceDescriptionA; |
043 | |
044 | // |
045 | // Actions to take on service failure |
046 | // |
047 | {$EXTERNALSYM _SC_ACTION_TYPE} |
048 | _SC_ACTION_TYPE = (SC_ACTION_NONE, SC_ACTION_RESTART, SC_ACTION_REBOOT, SC_ACTION_RUN_COMMAND); |
049 | {$EXTERNALSYM SC_ACTION_TYPE} |
050 | SC_ACTION_TYPE = _SC_ACTION_TYPE; |
051 | |
052 | PServiceAction = ^TServiceAction; |
053 | {$EXTERNALSYM _SC_ACTION} |
054 | _SC_ACTION = record |
055 | aType : SC_ACTION_TYPE; |
056 | Delay : DWORD; |
057 | end ; |
058 | {$EXTERNALSYM SC_ACTION} |
059 | SC_ACTION = _SC_ACTION; |
060 | TServiceAction = _SC_ACTION; |
061 | |
062 | PServiceFailureActionsA = ^TServiceFailureActionsA; |
063 | PServiceFailureActionsW = ^TServiceFailureActionsW; |
064 | PServiceFailureActions = PServiceFailureActionsA; |
065 | {$EXTERNALSYM _SERVICE_FAILURE_ACTIONSA} |
066 | _SERVICE_FAILURE_ACTIONSA = record |
067 | dwResetPeriod : DWORD; |
068 | lpRebootMsg : LPSTR; |
069 | lpCommand : LPSTR; |
070 | cActions : DWORD; |
071 | lpsaActions : ^SC_ACTION; |
072 | end ; |
073 | {$EXTERNALSYM _SERVICE_FAILURE_ACTIONSW} |
074 | _SERVICE_FAILURE_ACTIONSW = record |
075 | dwResetPeriod : DWORD; |
076 | lpRebootMsg : LPWSTR; |
077 | lpCommand : LPWSTR; |
078 | cActions : DWORD; |
079 | lpsaActions : ^SC_ACTION; |
080 | end ; |
081 | {$EXTERNALSYM _SERVICE_FAILURE_ACTIONS} |
082 | _SERVICE_FAILURE_ACTIONS = _SERVICE_FAILURE_ACTIONSA; |
083 | {$EXTERNALSYM SERVICE_FAILURE_ACTIONSA} |
084 | SERVICE_FAILURE_ACTIONSA = _SERVICE_FAILURE_ACTIONSA; |
085 | {$EXTERNALSYM SERVICE_FAILURE_ACTIONSW} |
086 | SERVICE_FAILURE_ACTIONSW = _SERVICE_FAILURE_ACTIONSW; |
087 | {$EXTERNALSYM SERVICE_FAILURE_ACTIONS} |
088 | SERVICE_FAILURE_ACTIONS = _SERVICE_FAILURE_ACTIONSA; |
089 | TServiceFailureActionsA = _SERVICE_FAILURE_ACTIONSA; |
090 | TServiceFailureActionsW = _SERVICE_FAILURE_ACTIONSW; |
091 | TServiceFailureActions = TServiceFailureActionsA; |
092 | |
093 | /// |
094 | // API Function Prototypes |
095 | /// |
096 | TQueryServiceConfig2 = function (hService : SC_HANDLE; dwInfoLevel : DWORD; lpBuffer : pointer ; |
097 | cbBufSize : DWORD; var pcbBytesNeeded) : BOOL; stdcall; |
098 | TChangeServiceConfig2 = function (hService : SC_HANDLE; dwInfoLevel : DWORD; lpInfo : pointer ) : BOOL; stdcall; |
099 | |
100 | var |
101 | hDLL : THandle ; |
102 | LibLoaded : boolean ; |
103 | |
104 | var |
105 | OSVersionInfo : TOSVersionInfo; |
106 | |
107 | {$EXTERNALSYM QueryServiceConfig2A} |
108 | QueryServiceConfig2A : TQueryServiceConfig2; |
109 | {$EXTERNALSYM QueryServiceConfig2W} |
110 | QueryServiceConfig2W : TQueryServiceConfig2; |
111 | {$EXTERNALSYM QueryServiceConfig2} |
112 | QueryServiceConfig2 : TQueryServiceConfig2; |
113 | |
114 | {$EXTERNALSYM ChangeServiceConfig2A} |
115 | ChangeServiceConfig2A : TChangeServiceConfig2; |
116 | {$EXTERNALSYM ChangeServiceConfig2W} |
117 | ChangeServiceConfig2W : TChangeServiceConfig2; |
118 | {$EXTERNALSYM ChangeServiceConfig2} |
119 | ChangeServiceConfig2 : TChangeServiceConfig2; |
120 | |
121 | implementation |
122 | |
123 | initialization |
124 | OSVersionInfo . dwOSVersionInfoSize := SizeOf(OSVersionInfo); |
125 | GetVersionEx(OSVersionInfo); |
126 | if (OSVersionInfo . dwPlatformId = VER_PLATFORM_WIN32_NT) and (OSVersionInfo . dwMajorVersion >= 5 ) then |
127 | begin |
128 | if hDLL = 0 then |
129 | begin |
130 | hDLL:=GetModuleHandle(AdvApiDLL); |
131 | LibLoaded := False ; |
132 | if hDLL = 0 then |
133 | begin |
134 | hDLL := LoadLibrary(AdvApiDLL); |
135 | LibLoaded := True ; |
136 | end ; |
137 | end ; |
138 | |
139 | if hDLL <> 0 then |
140 | begin |
141 | @QueryServiceConfig2A := GetProcAddress(hDLL, QueryServiceConfig2A); |
142 | @QueryServiceConfig2W := GetProcAddress(hDLL, QueryServiceConfig2W); |
143 | @QueryServiceConfig2 := @QueryServiceConfig2A; |
144 | @ChangeServiceConfig2A := GetProcAddress(hDLL, ChangeServiceConfig2A); |
145 | @ChangeServiceConfig2W := GetProcAddress(hDLL, ChangeServiceConfig2W); |
146 | @ChangeServiceConfig2 := @ChangeServiceConfig2A; |
147 | end ; |
148 | end |
149 | else |
150 | begin |
151 | @QueryServiceConfig2A := nil ; |
152 | @QueryServiceConfig2W := nil ; |
153 | @QueryServiceConfig2 := nil ; |
154 | @ChangeServiceConfig2A := nil ; |
155 | @ChangeServiceConfig2W := nil ; |
156 | @ChangeServiceConfig2 := nil ; |
157 | end ; |
158 | |
159 | finalization |
160 | if (hDLL <> 0 ) and LibLoaded then |
161 | FreeLibrary(hDLL); |
162 | |
163 | end . |
164 | |
165 | unit winntService; |
166 | |
167 | interface |
168 | |
169 | uses |
170 | Windows,WinSvc,WinSvcEx; |
171 | |
172 | function InstallService( const strServiceName,strDisplayName,strDescription,strFilename: string ): Boolean ; |
173 | //eg:InstallService(服务名称,显示名称,描述信息,服务文件); |
174 | procedure UninstallService(strServiceName: string ); |
175 | implementation |
176 | |
177 | function StrLCopy(Dest: PChar ; const Source: PChar ; MaxLen: Cardinal ): PChar ; assembler; |
178 | asm |
179 | PUSH EDI |
180 | PUSH ESI |
181 | PUSH EBX |
182 | MOV ESI,EAX |
183 | MOV EDI,EDX |
184 | MOV EBX,ECX |
185 | XOR AL,AL |
186 | TEST ECX,ECX |
187 | JZ @@ 1 |
188 | REPNE SCASB |
189 | JNE @@ 1 |
190 | INC ECX |
191 | @@ 1 : SUB EBX,ECX |
192 | MOV EDI,ESI |
193 | MOV ESI,EDX |
194 | MOV EDX,EDI |
195 | MOV ECX,EBX |
196 | SHR ECX, 2 |
197 | REP MOVSD |
198 | MOV ECX,EBX |
199 | AND ECX, 3 |
200 | REP MOVSB |
201 | STOSB |
202 | MOV EAX,EDX |
203 | POP EBX |
204 | POP ESI |
205 | POP EDI |
206 | end ; |
207 | |
208 | function StrPCopy(Dest: PChar ; const Source: string ): PChar ; |
209 | begin |
210 | Result := StrLCopy(Dest, PChar (Source), Length(Source)); |
211 | end ; |
212 | |
213 | function InstallService( const strServiceName,strDisplayName,strDescription,strFilename: string ): Boolean ; |
214 | var |
215 | //ss : TServiceStatus; |
216 | //psTemp : PChar; |
217 | hSCM,hSCS:THandle; |
218 | |
219 | srvdesc : PServiceDescription; |
220 | desc : string ; |
221 | //SrvType : DWord; |
222 | |
223 | lpServiceArgVectors: pchar ; |
224 | begin |
225 | Result:= False ; |
226 | //psTemp := nil; |
227 | //SrvType := SERVICE_WIN32_OWN_PROCESS and SERVICE_INTERACTIVE_PROCESS; |
228 | hSCM:=OpenSCManager( nil , nil ,SC_MANAGER_ALL_ACCESS); //连接服务数据库 |
229 | if hSCM= 0 then Exit; //MessageBox(hHandle,Pchar(SysErrorMessage(GetLastError)),服务程序管理器,MB_ICONERROR+MB_TOPMOST); |
230 | |
231 | |
232 | hSCS:=CreateService( //创建服务函数 |
233 | hSCM, // 服务控制管理句柄 |
234 | Pchar (strServiceName), // 服务名称 |
235 | Pchar (strDisplayName), // 显示的服务名称 |
236 | SERVICE_ALL_ACCESS, // 存取权利 |
237 | SERVICE_WIN32_OWN_PROCESS or SERVICE_INTERACTIVE_PROCESS, // 服务类型 SERVICE_WIN32_SHARE_PROCESS |
238 | SERVICE_AUTO_START, // 启动类型 |
239 | SERVICE_ERROR_IGNORE, // 错误控制类型 |
240 | Pchar (strFilename), // 服务程序 |
241 | nil , // 组服务名称 |
242 | nil , // 组标识 |
243 | nil , // 依赖的服务 |
244 | nil , // 启动服务帐号 |
245 | nil ); // 启动服务口令 |
246 | if hSCS= 0 then Exit; //MessageBox(hHandle,Pchar(SysErrorMessage(GetLastError)),Pchar(Application.Title),MB_ICONERROR+MB_TOPMOST); |
247 | |
248 | if Assigned(ChangeServiceConfig2) then |
249 | begin |
250 | desc := Copy(strDescription, 1 , 1024 ); |
251 | GetMem(srvdesc,SizeOf(TServiceDescription)); |
252 | GetMem(srvdesc^.lpDescription,Length(desc) + 1 ); |
253 | try |
254 | StrPCopy(srvdesc^.lpDescription, desc); |
255 | ChangeServiceConfig2(hSCS,SERVICE_CONFIG_DESCRIPTION,srvdesc); |
256 | finally |
257 | FreeMem(srvdesc^.lpDescription); |
258 | FreeMem(srvdesc); |
259 | end ; |
260 | end ; |
261 | lpServiceArgVectors := nil ; |
262 | if not StartService(hSCS, 0 , lpServiceArgVectors) then //启动服务 |
263 | Exit; //MessageBox(hHandle,Pchar(SysErrorMessage(GetLastError)),Pchar(Application.Title),MB_ICONERROR+MB_TOPMOST); |
264 | CloseServiceHandle(hSCS); //关闭句柄 |
265 | Result:= True ; |
266 | end ; |
267 | |
268 | procedure UninstallService(strServiceName: string ); |
269 | var |
270 | SCManager: SC_HANDLE; |
271 | Service: SC_HANDLE; |
272 | Status: TServiceStatus; |
273 | begin |
274 | SCManager := OpenSCManager( nil , nil , SC_MANAGER_ALL_ACCESS); |
275 | if SCManager = 0 then Exit; |
276 | try |
277 | Service := OpenService(SCManager, Pchar (strServiceName), SERVICE_ALL_ACCESS); |
278 | ControlService(Service, SERVICE_CONTROL_STOP, Status); |
279 | DeleteService(Service); |
280 | CloseServiceHandle(Service); |
281 | finally |
282 | CloseServiceHandle(SCManager); |
283 | end ; |
284 | end ; |
285 | |
286 | end . |
(5)如何暴力关闭一个服务程序,实现我们以前那个"NT工具箱"的功能?首先,根据进程名称来杀死进程是用以下函数:
01 | uses Tlhelp32; |
02 | |
03 | function KillTask(ExeFileName: string ): Integer ; |
04 | const |
05 | PROCESS_TERMINATE = 01 ; |
06 | var |
07 | ContinueLoop: BOOL; |
08 | FSnapshotHandle: THandle; |
09 | FProcessEntry32: TProcessEntry32; |
10 | begin |
11 | Result := 0 ; |
12 | FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0 ); |
13 | FProcessEntry32 . dwSize := SizeOf(FProcessEntry32); |
14 | ContinueLoop := Process32First(FSnapshotHandle, FProcessEntry32); |
15 | |
16 | while Integer (ContinueLoop) <> 0 do |
17 | begin |
18 | if ((UpperCase(ExtractFileName(FProcessEntry32 . szExeFile)) = |
19 | UpperCase(ExeFileName)) or (UpperCase(FProcessEntry32 . szExeFile) = |
20 | UpperCase(ExeFileName))) then |
21 | Result := Integer (TerminateProcess( |
22 | OpenProcess(PROCESS_TERMINATE, |
23 | BOOL( 0 ), |
24 | FProcessEntry32 . th32ProcessID), |
25 | 0 )); |
26 | ContinueLoop := Process32Next(FSnapshotHandle, FProcessEntry32); |
27 | end ; |
28 | CloseHandle(FSnapshotHandle); |
29 | end ; |
但是对于服务程序,它会提示"拒绝访问".其实只要程序拥有Debug权限即可:
01 | function EnableDebugPrivilege: Boolean ; |
02 | function EnablePrivilege(hToken: Cardinal ; PrivName: string ; bEnable: Boolean ): Boolean ; |
03 | var |
04 | TP: TOKEN_PRIVILEGES; |
05 | Dummy: Cardinal ; |
06 | begin |
07 | TP . PrivilegeCount := 1 ; |
08 | LookupPrivilegeValue( nil , pchar (PrivName), TP . Privileges[ 0 ].Luid); |
09 | if bEnable then |
10 | TP . Privileges[ 0 ].Attributes := SE_PRIVILEGE_ENABLED |
11 | else TP . Privileges[ 0 ].Attributes := 0 ; |
12 | AdjustTokenPrivileges(hToken, False , TP, SizeOf(TP), nil , Dummy); |
13 | Result := GetLastError = ERROR_SUCCESS; |
14 | end ; |
15 | |
16 | var |
17 | hToken: Cardinal ; |
18 | begin |
19 | OpenProcessToken(GetCurrentProcess, TOKEN_ADJUST_PRIVILEGES, hToken); |
20 | result:=EnablePrivilege(hToken, SeDebugPrivilege, True ); |
21 | CloseHandle(hToken); |
22 | end ; |
使用方法:
1 | EnableDebugPrivilege; //提升权限 |
2 | |
3 | KillTask(xxxx . exe); //关闭该服务程序. |