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(1)不用登陆进系统即可运行.
& P2 U( [/ g% o& J0 g/ C (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
' \0 f5 v. V ^0 V: \; y! A7 O9 T/ k/ M o
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 m0 z. f" n2 P9 h l; M 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: # _' N' a" z5 h8 \; z2 m5 B
# j* H) b" ]# U5 |) g- P: o1 N
(1)DisplayName:服务的显示名称
; g1 O9 |5 h S+ Z (2)Name:服务名称.
# M% I# |' P3 h& ]/ N b+ q% i$ x
* c( L: N9 Y( t0 @0 p( G0 _ 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. : w8 g7 T1 a8 e" C
* |& B! f( e1 U1 s z6 Q 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.
* }9 P# K9 |& F' X8 s( d/ d5 h) x; U4 O; I( n
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. 9 Z2 i) n8 Q7 `% Y- g9 A6 H
2 `* l) R- i! G# w) G( P: M
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: $ a5 C7 `3 b# U) v. q+ ~
0 k% o# R& V! ~
9 n/ b( D$ l% S2 Y; T& gunit Unit_Main; " ?' X, {" A$ c( D) T1 }# x
, s; w- r% p7 f% @; M F4 M$ \/ Minterface
4 J/ @1 E& s; d/ {* T7 F/ h8 n0 [# I( W+ w {8 q3 S% t
uses 6 Y: |% A1 m4 ~/ }5 u- G, f6 {
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
& G/ N7 }7 F" @6 D {1 g' j" {( N5 a9 }1 w, l. t/ v$ v1 ]
type 9 X( V" w' l2 I7 L0 F
TDelphiService = class(TService)
& s& L9 {: P3 ~& G5 tprocedure ServiceContinue(Sender: TService; var Continued: Boolean); * w' I! }, L1 j
procedure ServiceExecute(Sender: TService);
* W4 k1 T1 x( M! Q6 xprocedure ServicePause(Sender: TService; var Paused: Boolean); 0 A: Z2 R; p0 s& }
procedure ServiceShutdown(Sender: TService); 9 e1 x5 {) x2 s: C$ {
procedure ServiceStart(Sender: TService; var Started: Boolean);
! \. F1 |( d5 \" `. `procedure ServiceStop(Sender: TService; var Stopped: Boolean);
6 v- f& d/ Y! Y; B' ^. Hprivate
% C5 e! u2 w/ `- F# M{ Private declarations } . M9 g. a6 {* W) x' o
public
" }5 w0 x4 ?4 d+ X: ~& @function GetServiceController: TServiceController; override; 0 S. q& s2 [$ [2 A# v8 c
{ Public declarations }
2 X M5 O5 X% o6 p: F3 F& Kend;
* t1 e: O5 h: `7 o
; Z' w- k5 j- y6 A& x$ ]3 Gvar
' y" ?' T( s$ w, E# K/ a" C0 VDelphiService: TDelphiService; ( g. e0 f9 p/ d" z! B8 U5 ~
FrmMain: TFrmMain; % [4 Y8 g+ q5 s: T$ O p5 f
implementation 2 r6 f" _% T( A1 f3 E( l& Y8 e) K
6 _/ x& c) p, j
{$R *.DFM} * U% P, E! p( c, v
9 G3 H* ^2 p: _0 C: V$ W
procedure ServiceController(CtrlCode: DWord); stdcall;
8 t- \8 s* X. P& rbegin * e W. F ?+ B. ~" {
DelphiService.Controller(CtrlCode);
2 o1 i8 _$ I0 b# [end; * S/ w$ O* i5 W
N( D5 x B8 k# F, |
function TDelphiService.GetServiceController: TServiceController; $ ]* L4 S# u4 h4 W) u! A, t! b
begin
- X( K6 @ O& I3 u* @" P* D: r* |Result := ServiceController; 6 S& [ z" X& Y5 Z6 B0 g. E7 v8 f
end; ! R9 W; `* h, f; r! k5 W7 a
# T9 ~" d" r- }7 V6 Dprocedure TDelphiService.ServiceContinue(Sender: TService;
# D( P" u- g0 j5 H1 K2 l ^& I+ F+ Tvar Continued: Boolean); + O8 m" Y1 T) {& z: {& y6 [# W
begin
$ ~ p( o4 x& f* e* pwhile not Terminated do
" X/ _; D5 j% g7 m$ Lbegin % t8 ?/ I* Z9 [
Sleep(10); 9 c! h: _' p& n6 u( S3 q
ServiceThread.ProcessRequests(False);
) c% L. Z: A5 P% y, g4 n( R5 Lend; : K5 l9 ~. G& H
end; 2 T5 S0 }) U4 P( O" ^
. d' z$ u. O! j; A/ U! p
procedure TDelphiService.ServiceExecute(Sender: TService); ) L" Y* L( ^, P. I5 o
begin
9 y q) o" W, E4 H2 B4 D" @while not Terminated do + a3 L+ O) \) j' q' z( T6 M9 \1 V
begin * l- p1 S' \; S' P0 {- E
Sleep(10);
% e. E1 x7 z3 ^. s9 xServiceThread.ProcessRequests(False);
; H# m4 m# H$ o4 U1 dend; 8 s3 h& J2 {' g
end;
& I/ \. Y* b0 ?# r6 q
6 b+ s1 b# g8 ~! c5 b, L9 a v8 eprocedure TDelphiService.ServicePause(Sender: TService; 9 {& u T, i+ u) r) t: Y
var Paused: Boolean); " V9 R" N) Q. F0 V/ Y* ~5 k# I& z5 q2 t
begin ! W& T1 }9 n0 N3 a
Paused := True;
2 T% A: E9 K2 {/ o& q! D* E: Mend; 9 _7 n/ _9 b9 B4 I7 G
3 N( e$ X+ R$ [0 d) {procedure TDelphiService.ServiceShutdown(Sender: TService);
3 R* Z8 \" k3 z1 s3 S% T/ `begin , K" Q$ N) T. m; i }& C# G
gbCanClose := true;
7 ~4 u- O- e" pFrmMain.Free;
& `' l( \" M7 d7 sStatus := csStopped;
! \/ |! ]7 Q% d6 t! K$ CReportStatus();
+ |4 b/ O, r$ U& q. v. r. Hend; , D* j9 U; M; y' }* F! V
; z0 N: b; J7 Aprocedure TDelphiService.ServiceStart(Sender: TService;
4 [9 s+ k* s; ]4 C7 lvar Started: Boolean); 0 q2 l4 I# x G2 E Q7 r0 j
begin
5 V4 j( T) `/ o( {8 E- ^7 qStarted := True;
" o! |/ j; s. L+ R1 L7 S+ qSvcmgr.Application.CreateForm(TFrmMain, FrmMain); " r0 s T7 m$ t# p! T% W
gbCanClose := False; ! ~% }. O' ~4 w$ l
FrmMain.Hide;
4 c K1 O( G( t% `end;
( P- o, U% E8 K" [8 D( r6 L; l4 A& W& ?
procedure TDelphiService.ServiceStop(Sender: TService;
8 K3 `7 t! F2 O- J& ?var Stopped: Boolean); 1 R) ?% s" F9 y7 i$ `2 M
begin # m Q3 f/ |# C4 v" O* S
Stopped := True;
# N) I5 s1 S- C! [8 qgbCanClose := True; ) N4 J4 X# [' I f# d* k' K
FrmMain.Free; % a6 x" C# X& e$ U
end; 9 U. K2 L- J6 x2 r
6 n% m( T+ H2 F8 D' {8 g$ F
end.
( }2 D# r- R- N0 x
$ I# {! `1 H" M) b' w; s. w3 I
& Q0 C7 p" y7 F [! I% ]$ n主窗口单元如下: 9 x8 s: T4 Y1 c6 L/ j+ M) Q! O
- _$ w: y% O2 q8 D$ Y* i7 |% @- Qunit Unit_FrmMain; / O1 [8 d( n: Y) l' s% J2 U3 R! _( ^
% a1 u) I0 o! F, Finterface ' k# r9 O7 f9 n; s( F H
$ f4 ~ f) d" H) \uses 9 H, [% z# a6 l; n- q) `/ p, G
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, # }/ `( H, k' x8 ?
Dialogs, ExtCtrls, StdCtrls;
) e# v7 E5 H. s" Q
- Y- Y ` @2 |$ d. X% Vconst
8 G' K% |$ `8 F3 _0 A& RWM_TrayIcon = WM_USER + 1234;
" r. \' D8 f. B9 S* N) Dtype
5 ~# q7 r/ k0 w4 i* CTFrmMain = class(TForm)
" F; ~* x: K: Y: _/ VTimer1: TTimer;
* d# S* t3 F5 M% W3 P6 AButton1: TButton;
2 I/ w0 j* |+ P, k4 ^procedure FormCreate(Sender: TObject);
( I+ U" R% w; x3 j: Wprocedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); + y% {( E. F+ X3 [3 Y& r& {; X1 \3 m
procedure FormDestroy(Sender: TObject); ; Q7 {7 s) T$ P3 F: A) f3 k: j6 i' k
procedure Timer1Timer(Sender: TObject);
1 I: ?% X% d5 Q8 C9 m5 l D: hprocedure Button1Click(Sender: TObject); + {, U0 ]% ~4 R, x
private
2 C9 r+ N) R. J; L{ Private declarations } 0 \- V g0 Y, i. l) n
IconData: TNotifyIconData; 9 h2 y' J) l% Q6 J; Y. [2 e
procedure AddIconToTray;
* ^. n& r& @7 W- T& Z, }% zprocedure DelIconFromTray; $ n! P; s, m4 P
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; 5 C$ ]( a6 X# ]( Z O
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
+ L5 C" O7 y6 O0 R0 Cpublic ( l4 C' Y6 a* ?( R' k3 M# H, n/ G
{ Public declarations }
3 w4 C9 p$ Q- L$ O4 ^3 ~' n b" wend;
3 t0 | J7 v) G
4 l$ U* L3 \ f7 J9 jvar
1 v/ t2 I3 w7 W# e) NFrmMain: TFrmMain; ( r3 p5 l/ o5 M9 R. M1 O
gbCanClose: Boolean; 1 \) r0 u# a: x |7 m' t+ p
implementation
7 a& A# h+ z$ A3 i/ }9 E. K' f% P- z* ~; o; w7 D: y" T
{$R *.dfm}
: A, A( E$ a- z$ }0 V% Y" J+ [" E
% A, ]; @1 }& m P; ^procedure TFrmMain.FormCreate(Sender: TObject); ) ]& M0 ?. T! A! s
begin
% o+ O- z8 T; \0 E; uFormStyle := fsStayOnTop;
: d; ~ `) r( o# VSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); # U8 b" V9 N, j2 k8 f; M9 S* x2 W
gbCanClose := False; 6 u# o% _/ s3 s5 Q# j
Timer1.Interval := 1000; 8 ^2 Z ^+ p9 Q) N4 ]
Timer1.Enabled := True; & F" t _; h+ M6 p' u
end; 3 d# C( N* u$ T7 ]0 [5 L. [( p
5 F( y) b2 x- k* S5 I) f/ }+ {* jprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
0 ?$ h* f! k$ [5 ibegin
+ Z2 ] s) G) ?" t, Y, ECanClose := gbCanClose; ( {/ L) P6 v* ]$ V2 U% E. G% v
if not CanClose then
4 a9 g) }, u6 e6 Kbegin " d9 ^/ d" ^6 o4 \
Hide; 2 L8 j- L* `$ x. S1 O
end;
8 T4 ?% H5 C, k( Xend;
a# j9 _0 Y3 m, v8 d0 w# u% i* W v5 @
procedure TFrmMain.FormDestroy(Sender: TObject); 0 {6 U' x, u$ i0 U: A) q1 S
begin
# `3 A# B9 i* j. k4 m4 TTimer1.Enabled := False; ; r. o1 M1 }; r1 Q( P4 Z
DelIconFromTray; & x! c0 R0 D. z) `; f" X; K8 |
end;
8 f: q4 [, l6 S9 V: g: `9 T& y- h* m# m% D) z' R
procedure TFrmMain.AddIconToTray; # ]5 `. |5 b% ~& s# G
begin 4 k' K/ O7 p8 {
ZeroMemory(@IconData, SizeOf(TNotifyIconData));
: b6 @" D: }6 D( ]3 {# e yIconData.cbSize := SizeOf(TNotifyIconData);
' m: |0 L( M( {$ UIconData.Wnd := Handle;
# a. e- k2 y/ {IconData.uID := 1; : ^2 O" x" Y" m4 f& v9 P- |
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; + e3 D! N: T4 H2 r0 J
IconData.uCallbackMessage := WM_TrayIcon; - ?1 M ?/ R! [+ r6 n/ i
IconData.hIcon := Application.Icon.Handle; 0 P7 I2 R1 w/ Y* y
IconData.szTip := 'Delphi服务演示程序'; ' W, V. I3 [4 U) a( w2 f- N( A
Shell_NotifyIcon(NIM_ADD, @IconData); ) M; |. [- ^* i$ g
end;
+ x- M& M$ E' }
; T5 o' d6 a8 K$ q1 \procedure TFrmMain.DelIconFromTray; ' ?' q; [) l) Y3 P) i) U- X+ W |
begin # Z' Q6 i6 @) g! |: o
Shell_NotifyIcon(NIM_DELETE, @IconData);
4 a' ^* e0 p" \end;
& g& H/ Y- G4 C: q$ i1 H( ]( z& M! J5 [7 c
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
8 a$ y$ b6 l; ~begin ) H$ O4 C8 C8 j7 A j7 `3 J! S
if (Msg.wParam = SC_CLOSE) or
( V3 | }( B7 n' H$ ](Msg.wParam = SC_MINIMIZE) then Hide
. b& i b" n3 Z0 i% _. telse inherited; // 执行默认动作
$ C& n ]3 F$ O) X2 mend; 2 f$ v0 C/ z$ P$ Y$ q# G! I! {3 ~
( ~! J( y0 O7 w, Hprocedure TFrmMain.TrayIconMessage(var Msg: TMessage); * _0 t: ^2 k' Q% p2 w- k, ^
begin
) ?6 W% N: W6 J: c, }if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
7 q6 T: s1 t) A/ v# b% Tend;
/ F% M/ g9 C' y4 i4 d7 W6 ], q7 ?* B
procedure TFrmMain.Timer1Timer(Sender: TObject);
' ~0 U$ R6 g: N) T; Z5 z# E3 wbegin
. w2 O7 f, {7 r# B- D: v# v$ u$ kAddIconToTray;
- T7 s) |$ Z& V1 g# p: X! }! s8 h, R2 Bend; ! ?+ D F* G# ?
! }8 u4 a) e6 e2 n$ |6 [3 @: s$ B' {procedure SendHokKey;stdcall;
( F- N2 k7 j3 O, kvar
% O* w' @7 G, X; u3 o9 @HDesk_WL: HDESK; / t) V; a1 D$ H: `$ f
begin
4 W1 `- B3 E- n% B: z3 }HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
7 ~ e$ g$ s+ l6 uif (HDesk_WL <> 0) then / q7 @. e+ ?' g. j$ e+ ?# P
if (SetThreadDesktop (HDesk_WL) = True) then 4 [. Q+ Q8 \1 v
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
# q6 t( ]7 A" I! ^6 e- fend; ! U, A* h2 J, }) `( O6 I
; P9 g' m7 W0 K' hprocedure TFrmMain.Button1Click(Sender: TObject); , v7 L7 [* T4 E7 w- W1 g
var
3 s& g5 ^4 x+ E3 J7 ^. [7 c9 ]dwThreadID : DWORD; ; z2 }7 f- u3 w q/ o1 h) `
begin & Z: \% Z: f* n: P. D* c
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); & f0 @- D7 n# O+ w. ^! J
end;
: F- |2 L# n3 f0 t3 L+ [9 A" u6 i. R6 d! `2 j1 ?
end.
/ ^8 L+ x0 ~ v# L3 F$ X" w4 n* \, ^% s1 I% K; p
+ r& k" j1 X6 [8 h6 K, I
补充: 3 I9 Y, S" F: x: a' q
(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.
6 p: b- R) O+ `; u$ C. I3 J6 ?% @: j/ E: V! b5 Z# @& M
(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.
5 @' b$ _& D6 U _% ]+ q2 L4 X
- v/ }6 E7 K: G(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:
/ j3 W, a# `0 q tunit ServiceDesktop;
) g6 ]& v8 [0 e# {! Y) Z j8 C& P5 q4 B- g b
interface - J: g, Q6 C5 ]9 |3 _
8 i4 R' t1 a" `' [# ~function InitServiceDesktop: boolean;
3 ?1 A/ _2 @5 E3 D# xprocedure DoneServiceDeskTop; , }9 z; U7 o ]0 r/ B0 Q# n
+ @& Q/ E; W/ z* W6 C
implementation 5 g& Q, y$ U! }5 h" f" _2 T2 r
. d) k& |; L- buses Windows, SysUtils;
( j; B# A# I, J; u% ]
4 Q: N8 a1 O2 Q8 a, Q2 O$ Tconst
/ y2 B: ?- L7 e" S- ^# v1 Q- nDefaultWindowStation = 'WinSta0';
9 ], T8 {0 f+ e; XDefaultDesktop = 'Default';
$ T3 Z/ V+ k: ]: X6 M: Y o% a3 mvar
3 ^2 _* p# ^# S. g' nhwinstaSave: HWINSTA;
" o9 W! J% \3 b9 j; @6 j |7 G1 D$ u& WhdeskSave: HDESK; % V8 {3 Q8 c- c0 K) b6 H
hwinstaUser: HWINSTA;
9 v p0 w0 `& H' c. }2 c$ b3 D* {$ [hdeskUser: HDESK; ( N# M, @2 G7 K+ Z4 f
function InitServiceDesktop: boolean;
' G& u9 _) a! Ivar
( M: u' e4 w8 b- e9 r# A BdwThreadId: DWORD; + A9 B& a3 ~. G4 a, ?8 l9 a/ }! ?
begin
+ N/ t+ i) Z! ydwThreadId := GetCurrentThreadID; 0 _: W7 p1 Y x' B4 m
// Ensure connection to service window station and desktop, and ! ]3 Y) ?/ f- ~9 Q
// save their handles. 5 a3 B4 d! s4 q1 }! H( a0 |
hwinstaSave := GetProcessWindowStation;
: W$ I2 w0 s: Y5 s5 @! k; S- lhdeskSave := GetThreadDesktop(dwThreadId); 1 |9 u% R( D6 ?% b6 F
0 E, j* J* |& U# ]' x B$ f
: i- v _1 P3 E2 ?hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
4 N% l6 y1 u6 \" d3 H3 u1 R- E' D. `if hwinstaUser = 0 then & S# J8 d5 U% \
begin % P) U- G/ O4 L. o* ?( e' F( R" s0 g
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
* k. g; G* Z, v( ^* l5 q( @Result := false; ' B" E+ l2 X$ A5 R& @* [9 l F
exit;
7 G! R+ y, h5 Q3 ^; n( D, i1 yend;
. L& D9 B7 f8 x( K8 F* p, R& V3 z! Q7 x# y+ Q5 ~
if not SetProcessWindowStation(hwinstaUser) then ) ~( M K3 D$ q
begin 4 z. N. ^* {+ q8 k& H
OutputDebugString('SetProcessWindowStation failed'); . K. C2 B0 C6 b1 ?% I4 g- `
Result := false;
4 N A, U8 T: m/ y$ G5 F( [3 k) Vexit; 5 M, J% z& _) E' ~) ?$ a0 w4 e
end;
1 z! D `, S2 B( T0 h3 X: d% [6 H& h A* F8 ]3 T
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED);
& i: _2 W. x+ ? eif hdeskUser = 0 then ' S, U5 T* P" @0 z. G0 _4 ~
begin
, h4 C! c+ C6 ]* x |9 hOutputDebugString('OpenDesktop failed'); ( W5 P2 W% \4 [' K; [$ p
SetProcessWindowStation(hwinstaSave); # X1 t0 s" H, o+ B' @2 K
CloseWindowStation(hwinstaUser);
* t9 |% d! E/ R" b4 |+ d: C* sResult := false; H( V% }- J$ E$ h) n
exit;
; u" y7 d' T" }- O0 S! X& I; Pend;
* c/ H, X' G2 [* Z7 J2 W8 o j2 ~Result := SetThreadDesktop(hdeskUser);
4 j1 i Q8 Q5 ~- ~if not Result then 9 S) D" n# |4 c% b) x: w; G! Q
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); ' R! f5 i- O) g! }- G S
end; 5 }8 q' x9 {& U5 w
0 x7 G* z' Q, y, }3 w5 K( D
procedure DoneServiceDeskTop;
3 S" Q8 t& s G- W" `4 }1 A' Ybegin & n% B- R5 z1 Z( e0 u3 W
// Restore window station and desktop.
- x0 O8 B4 f7 s1 X4 M3 l( [SetThreadDesktop(hdeskSave);
3 U3 s; ~' J8 }( s/ iSetProcessWindowStation(hwinstaSave);
. l" m- |2 H8 I; W8 Iif hwinstaUser <> 0 then 1 f# a4 Q+ x9 o% m! Y. T5 T; ` z& t
CloseWindowStation(hwinstaUser);
) p4 L2 _3 O `; [0 a0 Yif hdeskUser <> 0 then 4 X- t+ |* X1 x2 Y$ L2 l
CloseDesktop(hdeskUser);
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initialization & r* H' S6 E" g
InitServiceDesktop; $ I3 i/ X2 b; b& H6 V
finalization " B' l( ]& L0 D5 q8 W1 R5 k
DoneServiceDesktop;
4 f, j; e) b. [ ~6 t2 [end.
8 s1 D/ l. i2 o更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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(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: : \1 R, N' X( ~" ~1 w
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unit WinSvcEx;
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interface
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uses Windows, WinSvc;
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//
, A. y" L6 n9 d J& s0 h$ z# ]// Service config info levels 8 f) ~1 O' {0 ]: ~
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SERVICE_CONFIG_DESCRIPTION = 1; 1 q) K5 a; h# i
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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