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我的地盘我做主
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(1)不用登陆进系统即可运行. . e$ F0 z0 s" `/ M
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. & d. E$ _* e' h/ i/ J
1 }; V/ f, p3 C& H2 p# N% ~
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. 3 U! q1 J* v3 Z# _
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:
( N7 s6 S* K) T# p8 R8 `. @7 ~" }; o4 D
(1)DisplayName:服务的显示名称
# W5 C! w7 A7 }. s (2)Name:服务名称. ! X* V! C" E& j X
/ n: F' G: c3 u, M! O( Q$ m; c, _$ m
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.
2 x6 v' J- ~# u' t8 }. ]$ q! E
4 e6 {5 G( ~$ a/ e$ p; K3 B 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. " D$ f( S9 f+ c4 z8 ?
" g _; \. \, o+ Z3 O
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. - {! m% Q! E" c4 D" n* c( F
% n8 E# v4 N1 C# T# x1 K. i
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:
. }: |8 V+ m* Q$ w6 y; ~0 a; I2 z* L4 ]
& F# p- m2 K6 v; b! D. ]unit Unit_Main; . \( w' i7 t$ Q; H2 Z7 S3 {
" F7 m: h5 }6 e1 @8 j
interface
& n4 r: l9 V# c* x+ J0 A& t7 N$ q, ~" {7 o0 |8 g( H& s6 n7 @
uses
1 y; Z* x4 j5 p0 ~9 ~/ }Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; 0 _: M+ _1 ~: a H. c
: {, U" G1 J3 [* b
type 2 |6 v% L& E4 c
TDelphiService = class(TService) 3 ^& f* J8 W- m5 T
procedure ServiceContinue(Sender: TService; var Continued: Boolean); : |2 r4 P- A& O1 _: R
procedure ServiceExecute(Sender: TService); 3 m& k$ W4 b+ ]! @1 `3 l8 }* F
procedure ServicePause(Sender: TService; var Paused: Boolean);
, I5 z% y( [4 @. @6 B# b3 T$ bprocedure ServiceShutdown(Sender: TService);
/ B& V+ c5 R) y3 oprocedure ServiceStart(Sender: TService; var Started: Boolean);
4 U# ] c& ?$ i* h; ^5 v+ y( wprocedure ServiceStop(Sender: TService; var Stopped: Boolean); 6 U6 {0 D+ |' \8 w0 w
private
# I& J2 Q9 E v/ `{ Private declarations }
+ d4 H* c0 ?- w" ^7 @public
4 E* l: n) Y+ ?- w( D) [0 Jfunction GetServiceController: TServiceController; override;
% u1 W1 `+ \4 v; s{ Public declarations } + b' G, w+ b+ H4 z; J& M6 ^& ]/ @
end;
9 P \+ M0 [$ P& V) F/ B: L: `8 a
/ r9 L: y" S9 `0 h/ Lvar
) k# J1 M7 x% S+ @6 KDelphiService: TDelphiService;
3 G( ^' g4 T+ W* P; _* z, {: dFrmMain: TFrmMain;
, h2 N, `: N0 o7 ~ ]$ `implementation
* u u4 l4 W% Z0 `- O5 i/ S ~0 A$ L9 V% q
{$R *.DFM} . Q# a' P1 j" I. l0 Z) i
3 f7 z% m2 K' D4 Aprocedure ServiceController(CtrlCode: DWord); stdcall; 3 ^$ v8 Q0 X5 q4 r& t3 Q
begin * L" V2 R+ E* e: {( ^7 W8 X
DelphiService.Controller(CtrlCode); 8 c6 @4 l6 b, ]: P3 A3 A
end;
8 Z5 |) W0 e. `+ m5 M1 s; u6 b/ A
: n$ {) J- A" w8 Rfunction TDelphiService.GetServiceController: TServiceController; 2 W' c3 B4 ]: M6 c/ k
begin
+ V) j; p5 ?6 r: K- x( J& M+ zResult := ServiceController;
4 G# n) c, J/ fend; 2 e% m6 D/ E% N! t+ d1 w
, K0 Z1 ^& u9 k8 U1 Uprocedure TDelphiService.ServiceContinue(Sender: TService;
, D1 P t6 z; S* J; avar Continued: Boolean);
) }# A! v8 V e, bbegin 2 J1 ]1 b2 g- e; {. S
while not Terminated do 6 p9 C! n7 f: ]1 V
begin
! B6 a9 k3 T: @. B6 {Sleep(10); & N. \% n* |% @* ^7 ^$ r
ServiceThread.ProcessRequests(False); : ~) d( D. t' |" P' \: W9 _: q6 c [
end;
" s2 s: L, ^5 _( W# n# C6 t& Vend; 1 P) b& {7 ^: w* `$ Z
3 D, {2 f0 {0 h5 V+ ^4 Fprocedure TDelphiService.ServiceExecute(Sender: TService);
8 t7 `' x% ]9 F6 z1 Cbegin
$ ?- X! |: C: R, @; Q1 Ewhile not Terminated do
9 Q1 a5 z- d" | c7 t6 ?, Y. Hbegin 4 u! p4 n4 ]0 y0 e2 I
Sleep(10);
( g) [& U; ^5 H8 ^ServiceThread.ProcessRequests(False); " |4 B7 c z# m1 W
end;
' C$ u8 Q; S/ Q/ send; + a& h! K+ K" K* Y
" P# v1 p6 N0 W/ v H
procedure TDelphiService.ServicePause(Sender: TService; & @1 l& b, I2 n% n3 P
var Paused: Boolean); ) \) p) e J" J
begin
* u5 k& n% p3 D. f" P; h7 OPaused := True;
/ S( w d# L7 z1 b" xend; M2 R# K: ~8 q+ L1 J: H X
/ z# a+ V9 E, a, v+ ^- k1 `procedure TDelphiService.ServiceShutdown(Sender: TService); ) G/ U0 a# z) S, m1 D
begin 2 d. B$ W( H# m
gbCanClose := true; 8 Z! C# [: D Z. ^: k2 s6 K4 `( W
FrmMain.Free;
0 {8 j& P. z2 Y9 T- LStatus := csStopped;
! q4 M S& Y! n, }ReportStatus(); : D7 m7 B( O2 M6 `4 t
end;
/ W2 o! K0 s* L& E. W V k2 v4 O1 r8 b. w
procedure TDelphiService.ServiceStart(Sender: TService; & p$ `3 x6 ^5 G, N
var Started: Boolean); + r/ ]1 L! B/ [8 _: R8 b
begin & k s0 u/ d& w5 E! l
Started := True; , ^/ Z3 C0 U* M( E, Y
Svcmgr.Application.CreateForm(TFrmMain, FrmMain);
* U' F* m" ?5 B4 @1 f# G7 IgbCanClose := False;
/ Q1 \ W4 u4 S. m) r8 yFrmMain.Hide;
7 R. n) l) R' ^) H# w" T; nend;
% Z2 V9 O. o _! |# B$ Q
' t6 l% w& ~1 d( lprocedure TDelphiService.ServiceStop(Sender: TService;
. u: j+ m9 q6 O. r9 T) ~var Stopped: Boolean); 7 p0 M$ Z3 f- L/ y/ g2 K' U
begin 6 h2 u) X _7 S* [1 V0 O: j
Stopped := True;
" U' t8 b& l5 v# a. U0 cgbCanClose := True; % a4 k; z, ?% {4 H
FrmMain.Free;
4 |4 S+ W# a8 xend; - u1 p5 W d, ]6 `
T$ Q, u) l1 v' h
end. 7 ~1 g% r: V, q# T& D0 L; B
; z$ E' J8 Z: ~7 S" V1 y+ n3 T9 f; [) y! s @0 f, {1 X
主窗口单元如下:
: y0 j$ i% [7 Q2 J) l) b. t. t7 Y% y, |: R* l# F2 i$ ^
unit Unit_FrmMain; 5 M" d& d) f7 I; N
% A7 d& Y2 n9 n4 {- ?6 E4 Sinterface
8 F) E7 R3 _& B: {9 _1 R, h3 ~5 E8 s3 `( U- H, R
uses
; Y* k M* j6 Y! K# JWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
+ b- M/ f5 F% ]# pDialogs, ExtCtrls, StdCtrls; : r" n$ b$ L l, {
! ?6 c) N( i; m% a+ _& f
const
0 y8 e8 {2 l$ gWM_TrayIcon = WM_USER + 1234;
7 O5 L+ Z5 D; Q: J. Otype 2 M: G# y. D0 t( u1 t/ b
TFrmMain = class(TForm)
8 P& T3 j: o+ K/ ?6 U2 V1 FTimer1: TTimer;
4 X3 ]% }5 {% e) BButton1: TButton;
' |: B" D# g; u, E' q$ x: ]7 _/ ?procedure FormCreate(Sender: TObject);
; A! B" C ~" d7 D+ D. wprocedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
3 q0 W8 }" t5 ?9 ?5 zprocedure FormDestroy(Sender: TObject); " H E6 C: G, X; P
procedure Timer1Timer(Sender: TObject); 1 V6 Y5 A3 O; B- L, Q7 `- P
procedure Button1Click(Sender: TObject);
$ E5 o) Z& O* l* ^; w2 ]0 Yprivate 2 v# V8 }2 T! a2 z% P
{ Private declarations }
; e7 k# K* @1 U9 w4 w% ]: @# lIconData: TNotifyIconData; 0 n, l' B. `& c. D G# D: q
procedure AddIconToTray; ; K& U7 U0 r* ]) o
procedure DelIconFromTray;
1 }& Q* @, H5 X( U: |# @procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
$ y {$ i: Y, J/ `procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
' T. C- U9 V& U+ X$ G% l. `4 ^public 0 b4 c: C6 M- p9 Y! ?
{ Public declarations } 4 R! i( H2 y3 a' g
end; 8 {7 `9 S( b3 p; ?+ j( X# j3 _* n
$ {" j4 x2 _. Mvar
& K% s( B2 H6 @5 |, bFrmMain: TFrmMain;
, e. |; P. b& q) fgbCanClose: Boolean; ) L1 n8 L4 K$ W
implementation
. P0 S1 D! C& e4 H" d& c* M% o
/ i) x/ L0 F9 Q* d3 x' z{$R *.dfm} ) L+ A9 p: z) x2 R
! d4 ]( p2 f& d2 v' iprocedure TFrmMain.FormCreate(Sender: TObject);
1 k& O/ ~* }5 l! F! _' d# |begin 7 v8 m( {, W/ h% d: `$ b5 g
FormStyle := fsStayOnTop; 5 C; N/ Q$ `6 n; w( C( @
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); % G1 B! K) j% S! C" u* S
gbCanClose := False; . z: \9 y8 S. X- k' k$ i9 l+ o
Timer1.Interval := 1000; ! `; V2 {6 @: ]; o, N# v( [) S
Timer1.Enabled := True;
% f$ u) y9 h" Hend; 7 k! m# \: q6 @; s
u- T0 h7 A! O2 U0 L) ^
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); # \4 `" C# O* C
begin ; x0 Y0 T, i7 Q5 B1 U( M" c" r4 v
CanClose := gbCanClose; ) s0 ~- O4 z7 P; E! a$ R3 M
if not CanClose then
( e9 R8 r X/ ?0 C/ |/ c& M& ybegin
6 n/ S% O, i2 o& d0 BHide;
& ^. ]* x9 \! Y: \end; ; T$ H) J7 H7 h8 J+ p. P
end; 7 E7 F2 K/ R2 O1 J
; q/ j" u- c1 ?, r& e" N' F
procedure TFrmMain.FormDestroy(Sender: TObject);
6 a- Q+ g$ f/ j. A7 G+ Abegin ' H9 _' r3 O3 g
Timer1.Enabled := False; / I# D. ^% c3 ] g
DelIconFromTray; & t6 b9 b$ c3 v! y2 X7 F1 z
end; ! Q* C* R9 u) m8 R2 h Y0 E1 W: ~
( g% d/ B. c" `7 N; p$ dprocedure TFrmMain.AddIconToTray;
& t* K9 [" j* n* _1 sbegin * e6 o- {. B" v
ZeroMemory(@IconData, SizeOf(TNotifyIconData)); ! h. e3 J5 z; M( m4 `% I. j
IconData.cbSize := SizeOf(TNotifyIconData); 6 U/ f' g+ o5 z T
IconData.Wnd := Handle;
0 r5 e! k: p" ?9 f( KIconData.uID := 1; 7 m7 G) ~* n" ^9 R; g; ?# t3 \
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
6 D+ c- q. z: \ {. u( A% v/ BIconData.uCallbackMessage := WM_TrayIcon;
7 J( t X) C0 O/ zIconData.hIcon := Application.Icon.Handle;
! p3 ^$ q( }/ F$ T& }IconData.szTip := 'Delphi服务演示程序'; 0 P+ {0 K2 E! w' m" j0 f( {3 ?% ^2 b* z
Shell_NotifyIcon(NIM_ADD, @IconData);
' o8 U6 `2 ^/ G/ L& M! ~5 Wend; ! d, e0 p0 e; a/ ^. Z7 y4 V
8 t; `/ V) W9 O. qprocedure TFrmMain.DelIconFromTray; * d# V0 F8 ~3 q3 V% f+ T. J# j
begin 1 t: ?) l4 Q" x
Shell_NotifyIcon(NIM_DELETE, @IconData); * W* j4 z# J! ?9 K% p d6 @
end; ( z7 Y5 X" c' \- a
' Z3 m9 ?: E8 ]2 b8 Wprocedure TFrmMain.SysButtonMsg(var Msg: TMessage); 3 ?6 V Q+ ~' v" j* N
begin , `* B4 h o0 E; O
if (Msg.wParam = SC_CLOSE) or % \. R! C7 m7 n1 m
(Msg.wParam = SC_MINIMIZE) then Hide
4 U2 M: B& ^) z$ v# D' |* Welse inherited; // 执行默认动作
: ]; K: U4 q+ @( Bend;
3 [1 c) ?6 y' U# {7 p+ M
6 S* s* p3 v5 }3 ]. j, nprocedure TFrmMain.TrayIconMessage(var Msg: TMessage); ; ?" a% I3 [+ }
begin
, f$ F3 y) `: I: E2 d* y+ Mif (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
( S& g2 |# @& {0 n3 ^end; 6 N: B3 |( p$ K$ y' R
1 h" ], [# A6 D8 F: i$ ^procedure TFrmMain.Timer1Timer(Sender: TObject); & e* h5 N( U8 q3 k
begin
; J9 R6 `% H- p5 aAddIconToTray;
* r; W& C5 I: y/ q% ]; N: hend; $ Y9 S+ N& g; R$ I& u; b
" v' k& T5 D2 L. U0 i2 `7 U; x
procedure SendHokKey;stdcall; - J5 w* `, r/ L2 T% D+ ~
var
. w9 ^ S4 S3 D$ ~/ r' {HDesk_WL: HDESK; : o9 {- Q4 Z5 @
begin ) q$ W. `+ n0 A: j$ m
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); - e7 `/ c3 J g( M. z
if (HDesk_WL <> 0) then : T2 h/ c6 ?4 {
if (SetThreadDesktop (HDesk_WL) = True) then
; O: Q$ h# O, ?PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
& y; `, N8 V( ?' E( ?/ Gend;
% }: V1 n7 J5 t6 }9 g+ E: p5 G3 H ~9 p- l, s0 ]0 q
procedure TFrmMain.Button1Click(Sender: TObject); / Y, y( |6 i, c* M& T$ f' r
var ; r! k; x: X t [3 m, d
dwThreadID : DWORD; 4 K& d" t& q/ r$ J: [/ A+ D3 c
begin 4 B* T, F) O2 @6 H; e8 R: m
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
. `: h) W8 k% _) R3 aend;
1 y7 F1 C) x0 d/ C( i3 Q. d' | ~9 E0 y
end. : F$ D% S! D* R6 E+ F5 r: @
8 G$ V- P) ^* d# z" E ]
; m% ?+ p4 k. g+ k9 g+ n$ D2 {- Z& a补充: ! l* ^: `& I* Q. w
(1)关于更多服务程序的演示程序,请访问以下Url:http://www.torry.net/pages.php?id=226,上面包含了多个演示如何控制和管理系统服务的代码.
" P4 b- y# y8 {. b; E/ Y' j3 h- ?1 X6 C# B
(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 c" h t/ H$ l" m: d6 {
: e# F/ A, a' o& y- V(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: }; a) D: d+ Q- e- E; H( L# t
unit ServiceDesktop; ; h ]3 i/ ?7 y& }: ]
# g3 Y5 i8 U5 y5 t3 f
interface : F7 \ ?7 C& s9 W0 x; e2 T
4 E1 O9 s4 x7 Q) h) Tfunction InitServiceDesktop: boolean;
1 [' r4 y% I2 W% L( I% ~procedure DoneServiceDeskTop; ! u# y I% X# D6 E+ a' b
- `4 l3 |+ W. A4 o8 Q6 ~) U0 Rimplementation + a: r l" K. u- M! b
: w/ N# K _/ C3 I. h u
uses Windows, SysUtils;
6 `% o( k4 [, F# u! `* u
9 `2 Y' f* C0 i0 n8 Nconst
0 g% o" a# c9 L- s% Z7 J% gDefaultWindowStation = 'WinSta0'; # V# c Y5 g2 @4 w! @, A
DefaultDesktop = 'Default'; ; d3 S' E9 S: }/ y& Q6 X0 G/ l
var ' _% `+ G. C: }4 y
hwinstaSave: HWINSTA;
, ]4 A8 N% ?8 ahdeskSave: HDESK;
1 g3 S" X [. R* P2 v, IhwinstaUser: HWINSTA;
- W L& z; U2 k& t' f$ `hdeskUser: HDESK;
$ E# W7 ]; M" I, p* H k' Lfunction InitServiceDesktop: boolean; t( {! Y: W# @" ]! ^/ q
var + H" g: ]+ Q' Y
dwThreadId: DWORD; 6 ]% g @/ Q, A# J
begin
4 G- R- g4 u# y+ P; U( r4 D( ?dwThreadId := GetCurrentThreadID; . w% ~# q: R5 n' a, Y
// Ensure connection to service window station and desktop, and 5 m: x; c6 j `) h/ F. ]3 Q: C
// save their handles. . f* H. Z' p( K& T2 V8 j5 i# D7 u1 K
hwinstaSave := GetProcessWindowStation; $ ?$ ]% C) `: ~3 O z
hdeskSave := GetThreadDesktop(dwThreadId);
$ H4 N0 I0 J4 i% N) ]/ Z+ Z& |4 m3 [# q: y# q
6 `6 l T1 ^) O* p$ ]; l+ xhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
; K9 }6 C) j! [" A+ D/ Gif hwinstaUser = 0 then * y. e. e* ]$ ?6 f2 C2 y0 f
begin
P: E0 A$ J' t$ X$ e( g7 Y1 q" V! ]OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
* K2 l/ b$ x E' j& c# oResult := false; 0 K6 V0 z, N6 h# k. v# @
exit; & J, M% l" g# C* c$ t" @
end;
5 m6 W, C! L* j6 @9 j
; ]) T1 k! c& |; S+ i, Y+ }& m$ Mif not SetProcessWindowStation(hwinstaUser) then ( U) k- ]$ T, h) Y6 e8 c8 \
begin : o4 {5 D. n6 |2 ?% F
OutputDebugString('SetProcessWindowStation failed');
, n0 q2 x2 @# w* HResult := false; 9 z- O% ^) e+ Z) }1 z" S
exit;
1 s; d9 h+ s4 W7 I: a3 U- l4 Dend;
, N5 t1 p1 G% n4 A% z2 ?3 b( ^5 x4 M$ @; I3 c, @; {
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); ! K$ J6 w; b V8 D
if hdeskUser = 0 then
% m3 s. e3 Z, z# P' I9 ]* Zbegin
, \4 M+ d# l. Y- M/ e( EOutputDebugString('OpenDesktop failed');
& ~) x$ z- q- y+ JSetProcessWindowStation(hwinstaSave); + J/ m5 J: a. P# [; t- Y2 W
CloseWindowStation(hwinstaUser);
# Q, O5 [0 a3 Z6 z9 iResult := false; $ Q0 v( r; n$ d$ t' v
exit;
) h3 F5 M2 N6 p( ]0 a+ ^end;
+ K {2 o) H1 E6 CResult := SetThreadDesktop(hdeskUser);
: Q3 x% P$ w- [+ `5 O: r9 T! tif not Result then % f0 D9 y' x/ P7 H
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
, n, f! s' y1 c I* Qend;
0 b0 |0 K. S7 R' X: a# `% g. j8 L0 p. M
procedure DoneServiceDeskTop; $ t$ I! E) R$ Z: X
begin
0 a6 B9 ?$ |: j# c: c1 f// Restore window station and desktop. o% J3 y$ k: g& X* [* `
SetThreadDesktop(hdeskSave);
- {3 r# a+ W: C* X: _7 uSetProcessWindowStation(hwinstaSave);
\) e% S4 K' k3 v8 ~if hwinstaUser <> 0 then 2 G8 Z/ f/ G* B% Q Q! P
CloseWindowStation(hwinstaUser); # u9 a$ h5 n2 I6 E
if hdeskUser <> 0 then # J$ h4 j& N1 O- [) n9 k
CloseDesktop(hdeskUser);
* B0 O9 N0 b$ k" ]( Y& }end;
5 U0 Z4 P2 Y X/ R# e! Z6 v% S
* a, v4 g# p/ Oinitialization
* c4 T6 ^7 J" Y* @2 bInitServiceDesktop; % A# `3 t6 C) Q0 x
finalization / @! s: Y4 O6 e( y3 B* F
DoneServiceDesktop;
& f7 _1 }! v1 rend. - C% |- L& ?8 e% I
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip E' D2 S9 T$ Q7 M9 c: J
" q1 C) g" o5 f! H( K, T(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:
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unit WinSvcEx; # \ ~7 V6 ^ t+ H# \; [8 ~/ J
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interface ) a. N% {% R: b& K1 k3 v
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uses Windows, WinSvc; - m1 z7 b- q2 n0 h; ]/ r
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const
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, \. b+ j/ T9 d+ y0 B. \+ T// Service config info levels
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SERVICE_CONFIG_DESCRIPTION = 1; / B6 r8 G1 T" a+ S
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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