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我的地盘我做主
该用户从未签到
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(1)不用登陆进系统即可运行. 3 h% l- h/ ~& B
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
/ n: A* t G6 b- a- d8 }. E/ k5 Q7 p! B8 C3 f" J- n0 _6 U
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.
% y! i) H1 d0 A4 s6 q 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:
- r: d& U" d! ~" X* u1 f% i) k5 J+ s2 x
(1)DisplayName:服务的显示名称 5 n6 {. _! s% R
(2)Name:服务名称. 7 a2 A! D) q, H& m0 F
# K- _# H9 ]8 s
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. / Y0 Y$ d5 v# t
' e" @7 j7 i# `" O# R0 _
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.
6 \- Q2 H0 n2 h: M& s4 Q
6 k" U4 X) l! \/ i( A: j6 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. 2 Q q5 C, F# q: @8 K. g
1 M4 o3 C% y L/ c6 u 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: + l G, k& [, ~, x. \0 `
, _, n! u0 E) Q+ U& B
& t! F& X6 ?2 P* o. _0 `( M$ a- [% Junit Unit_Main;
9 T( t1 t/ d f( I3 l: ?5 F5 V2 C
interface
% k) C2 W, X3 e/ z; |( [. y
D4 P* F. |! ]6 _uses 5 k3 n2 g' O$ x+ q1 _
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; 8 E G! `# l: g
. q; g* ?2 X$ \) z2 ~; O1 |6 A G
type # c& y6 s; R' ^- f: T- q
TDelphiService = class(TService) + \' ? h1 h! h' Q
procedure ServiceContinue(Sender: TService; var Continued: Boolean);
0 |3 Q) l+ [( g4 y' @) Jprocedure ServiceExecute(Sender: TService); # x4 }/ Z/ C0 Z
procedure ServicePause(Sender: TService; var Paused: Boolean); 2 r5 c5 G. s5 k8 ~
procedure ServiceShutdown(Sender: TService); $ q( L, V! V- O5 Z S0 B- l
procedure ServiceStart(Sender: TService; var Started: Boolean); - N5 ?8 H q: [/ l9 a6 A' I7 a6 B3 N- z+ E
procedure ServiceStop(Sender: TService; var Stopped: Boolean); / t0 f$ m/ k) C. A' P/ E
private 5 K2 g, ^+ S0 A; R; D
{ Private declarations }
% n) Z1 R ]) k7 x% Fpublic
. x# [# O0 Q* R }function GetServiceController: TServiceController; override;
, w7 K8 o2 h+ C{ Public declarations } 7 C. L4 @5 A$ N% ~ g- `
end; . P" Z: g% |! j. s/ H5 y9 X
& D: q+ R4 g! v+ ~$ E/ K4 S3 r7 G
var
# ^. g) c+ `' u# YDelphiService: TDelphiService;
- Z& q& ~+ g; v1 b7 C7 {' GFrmMain: TFrmMain; ; x5 S6 z* Y8 I p: q
implementation
4 T0 e1 U# c! W; ~* U$ W" {" h) O3 y
{$R *.DFM}
8 V+ I5 g% x# z1 k4 {
: x, o. B& ?- z0 |% ^, p; X+ s5 Nprocedure ServiceController(CtrlCode: DWord); stdcall; ! E2 a8 Y& @$ ^- j# E
begin ( [8 S' Z7 f! R4 ], s' |
DelphiService.Controller(CtrlCode); $ j y' m i8 l5 j
end;
* {2 V. C& Y9 s
; K8 Z( i* W; D! _+ m7 lfunction TDelphiService.GetServiceController: TServiceController;
1 d' s' Y' s8 B9 q, j1 |begin
/ @3 b" U' k6 M+ e3 [Result := ServiceController;
! n- Q6 q( a7 S7 Q9 R+ J) Z9 F) _end;
* u; b( ~! Y" k8 b6 \& [; }1 A1 s( o6 d, a: w* ]$ d
procedure TDelphiService.ServiceContinue(Sender: TService;
/ w* Y0 z. `; Z9 m( [' ?5 p) @8 v; Uvar Continued: Boolean);
3 \8 u7 }! c7 qbegin + s3 `2 p+ Z4 y% i# o l
while not Terminated do
6 z0 p6 T* @' t' K, b0 A8 d* ^' tbegin
! h- b- C; v& D( S/ ZSleep(10);
6 X$ V& }7 l' t2 c, q/ h% GServiceThread.ProcessRequests(False); ; X6 L1 `0 k: R
end;
+ z5 d; U% W' ?. X* v& eend; 0 h1 j- }6 D3 _1 s. T
% ~ q$ u% K7 \( i% l( `' y- z `procedure TDelphiService.ServiceExecute(Sender: TService); $ P0 B8 w, C. ]
begin . M) A2 C/ W1 h/ n
while not Terminated do - t* r7 Q ]1 V$ n- L, s
begin ' e1 y! s) W& z3 S
Sleep(10); , `7 K8 I( W% h
ServiceThread.ProcessRequests(False); . ]* o: R5 C4 q5 ], H
end; " f; \6 N& a6 H3 @9 _. j" U Y/ ^% O
end;
r0 L/ ^) x* M. l5 ?0 P& I) ?2 v& r. p3 ^% J O) Y8 G4 X
procedure TDelphiService.ServicePause(Sender: TService; 9 A' z6 N3 c1 T* n* D7 k
var Paused: Boolean); 4 [ Q8 o8 d3 t- ^* M
begin
& [6 s2 i& B, S1 a% LPaused := True;
' n0 J5 a3 @1 F! y9 i! rend;
9 t9 P0 P) V( u8 L N. E& {5 z) o3 x5 M7 @: K6 k- p
procedure TDelphiService.ServiceShutdown(Sender: TService);
4 s. O {, g! U L Bbegin
1 |6 ]3 Z; {7 n) F% Z v2 dgbCanClose := true; 1 w% \ G2 I) b& n
FrmMain.Free; / O! a9 y5 M- L
Status := csStopped; - ]& T; q |: w' o
ReportStatus(); 7 l+ ^8 R4 q5 a5 u* c
end; 7 ^' R/ s& ~% q& x9 s
1 Y" P5 F0 a6 P, b% n8 v ~7 N. A
procedure TDelphiService.ServiceStart(Sender: TService; - n; {0 G2 \! f
var Started: Boolean);
1 p* a- W& V# l) r! f- J8 a' Abegin
4 J6 D8 Q; G: } T- A/ GStarted := True;
% _' ^ w) \# }Svcmgr.Application.CreateForm(TFrmMain, FrmMain); # |5 j3 ~' m: G6 d
gbCanClose := False; 5 Z! Z' i/ k: V P: A
FrmMain.Hide;
& Z* @) K+ ^: |! |; U6 J# D7 ~) R8 Oend;
. l; l6 W5 s, m' ~5 m4 E/ A5 _. }# }/ O1 d% a9 e
procedure TDelphiService.ServiceStop(Sender: TService; - a% v0 G" P% p+ x
var Stopped: Boolean); 0 w+ \% Y+ [0 s9 l2 g
begin
3 \- z: A! u& CStopped := True; . @; N, V# G1 t6 [
gbCanClose := True;
, u8 E* r8 i# kFrmMain.Free;
0 G' R- x3 ?; x, h `2 r4 Q' hend; F" t4 V. Y2 Z- C; K4 u" h" F# D
' q V9 ~4 k6 O9 V" s
end. 7 Z' U7 A' o U) D' C) Q
% J0 ?! A: c2 J0 L/ `
: @" }, M4 o1 @- T, z
主窗口单元如下:
6 A; W& w( T9 Z0 d6 k& C' }8 E3 W3 e @+ }# j5 r4 R1 w
unit Unit_FrmMain;
) d' Y5 V0 b. C2 V* E8 O" a( { `
* |) E& `9 O: z/ K iinterface
: n) X: V6 V' b
# a! |8 h/ ]4 @. k& [uses
+ Q: T% H/ G) ]9 V0 dWindows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, $ E1 {0 [" Y: A, a! R7 Q3 \
Dialogs, ExtCtrls, StdCtrls; " u% ^9 s1 G% P
: q0 ~$ p. @- ]4 jconst 4 A0 i2 s# q- J1 @- f
WM_TrayIcon = WM_USER + 1234;
8 F2 n1 ^5 }' t8 Rtype
6 L7 N7 F" P, T, B# [9 o$ O4 XTFrmMain = class(TForm) 9 b5 g0 u, [( x6 G/ x6 k
Timer1: TTimer;
+ X; X. }- G% cButton1: TButton;
: }: a/ R5 ?' s: K" E- R Z" jprocedure FormCreate(Sender: TObject);
/ Z9 I1 a% P! Lprocedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); ! U% v4 ]+ Y) I2 Q6 j) X" `' |
procedure FormDestroy(Sender: TObject); * W0 S' x+ Z+ ^. k
procedure Timer1Timer(Sender: TObject); 0 s' \4 T- F% a" b* c
procedure Button1Click(Sender: TObject); + i7 a6 [: q4 V! X; n4 j% E7 w( e; d
private
- i* e1 c! ` |. E2 t* {+ q0 l) |0 u, z{ Private declarations } # [- i- M: D9 {2 W9 t; Q) f- l
IconData: TNotifyIconData;
1 D4 s/ v( l1 v+ G: ]procedure AddIconToTray;
3 z( z) d# E+ F, ]3 A" vprocedure DelIconFromTray;
; q* W5 B0 a# ~2 P$ _( Sprocedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; 2 R. W/ Y3 z% B9 B3 Y8 r7 c
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; . g5 g8 t$ M% n' N I: _' [
public 8 u2 \4 K/ h% i) P" l$ F+ @
{ Public declarations }
8 U6 b% R# @1 T5 z5 U5 Bend;
3 Q1 j; g6 z& I# T7 D! X1 P+ ^: h7 w8 _2 t4 R1 u
var 6 A/ @0 q/ r) C a- O1 V/ F
FrmMain: TFrmMain; + c5 L2 e. v t4 a8 c
gbCanClose: Boolean;
/ y+ |! y- g$ @( limplementation ( F. v/ |% r N; {0 I9 g
" p- W* N" j, q5 V2 I4 K" W9 u
{$R *.dfm} 4 d2 ?( W5 [! D. v6 B! P- t$ L
% ]" f* X) ?$ T: z% A$ [7 X5 W8 |) }
procedure TFrmMain.FormCreate(Sender: TObject); , y! B$ D3 M. u, T
begin % O8 g: K6 x! d8 R, Q2 B
FormStyle := fsStayOnTop; * w, t/ |5 P! G ^. H" }) G
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); + m) v1 Q9 ]% }# _; L
gbCanClose := False; }4 s$ E) C6 E, F& Z& S/ t& x
Timer1.Interval := 1000;
" q$ [. g; G2 t2 J1 bTimer1.Enabled := True;
# S( G$ Z# k( d7 ?" G$ {end;
a8 ` s7 N; U$ G: Y) G. h a% ?- q
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
0 m" F. E3 x+ w8 r4 j2 o c' Jbegin
. X3 `5 P) Q% B" A2 ?/ d VCanClose := gbCanClose; & T0 t8 }: M1 M- D
if not CanClose then
+ S2 z2 @" s' v' X2 I dbegin # T0 \0 s1 M+ ] }6 l. F# }
Hide; + {' ~0 Q2 m7 k2 V4 u% B% j
end;
; C+ o m* Q, X1 s4 h4 oend;
$ M, l: l4 Z' ?. ~' p
- t7 {: P: @$ ]- N" u) Uprocedure TFrmMain.FormDestroy(Sender: TObject); ; a+ |. r$ d% w" c2 F6 b4 a! X* W" y
begin " T# X8 T4 ]3 j x0 t0 j* Z- C
Timer1.Enabled := False;
' _* }/ @9 K3 s) |' ODelIconFromTray; 9 I8 O3 d% ]) E! j4 X
end;
$ F6 n) P* e6 J& h9 ]1 n ?7 q# e
* M4 _3 h' g1 `procedure TFrmMain.AddIconToTray;
+ b2 |5 {2 u% _6 hbegin & ?, h( v$ _3 r/ v( I& R( q8 q
ZeroMemory(@IconData, SizeOf(TNotifyIconData)); 3 ^8 e& C# s3 n: e+ l
IconData.cbSize := SizeOf(TNotifyIconData); ' Q F; w. H1 Q, i- F- f; Z6 _
IconData.Wnd := Handle;
2 y1 d) U+ l* d% HIconData.uID := 1;
2 J2 w, G7 B! ^, zIconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
/ g, ]; L3 W0 B0 s1 t6 E# [2 `IconData.uCallbackMessage := WM_TrayIcon; 8 z% b. C7 s5 H! x$ L
IconData.hIcon := Application.Icon.Handle;
' |; h- L3 Y' C) ?" _4 ^IconData.szTip := 'Delphi服务演示程序'; ! D2 w* B/ W8 ?. Q
Shell_NotifyIcon(NIM_ADD, @IconData); ! K9 L+ y; s. ?' f' y8 U1 I
end;
4 j" V$ S( K. s4 Q1 X
/ [8 L" v6 w3 c, a: oprocedure TFrmMain.DelIconFromTray; * [5 @5 P' u3 R
begin
: \& M* `% Q o3 c7 ]- ]) k& DShell_NotifyIcon(NIM_DELETE, @IconData); 6 x, F( a6 K6 A$ E' {) x: e* T, f
end;
. d. |! P! L' ]6 k5 J$ e8 k
+ D& `7 ~4 j% Q& ^procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
3 v! h; p) t! G* Ubegin
4 V7 r d" g# F: c7 {if (Msg.wParam = SC_CLOSE) or & G6 Y" K0 ?# F% o" C
(Msg.wParam = SC_MINIMIZE) then Hide
" x3 F& k: _/ y* ^else inherited; // 执行默认动作 5 R2 m5 ~5 J! g; R( T( N
end;
: I% \4 a- H. C0 Q+ i7 N0 Z2 Z8 y' H3 q; ^" ?' O9 `7 L/ I" P% [
procedure TFrmMain.TrayIconMessage(var Msg: TMessage);
1 u8 i: P, r6 \. ?5 j- p! b1 ubegin
" c1 x- {7 S* ?( U6 Eif (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); / Q0 F- a: \; m
end;
" @& u7 C" n9 e9 k' l* B4 | |4 X/ ~/ T+ B& s( \( w: E2 A1 R. R
procedure TFrmMain.Timer1Timer(Sender: TObject); ! T: {( B. K6 J8 Q& P4 R0 l& v
begin
2 T. ^8 u: K3 X, QAddIconToTray; 1 Y6 @0 T! W5 S- f: h; A2 Z
end; 4 K7 |, W0 Q6 |, ~! p' W- M
# H9 y& Z( W8 e' Pprocedure SendHokKey;stdcall;
5 b. d( B$ ?/ a8 D+ `var - x0 r6 n/ V* E' F8 Y9 }* e: p
HDesk_WL: HDESK;
8 W" s, r4 u0 Z/ z7 Lbegin
8 j- Q# s5 ?7 @5 }5 e2 o) ^HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
# b, W) G" z b1 g* R8 U6 P! Kif (HDesk_WL <> 0) then 4 }. |. d( |& e0 S6 u
if (SetThreadDesktop (HDesk_WL) = True) then ) C* ^% i5 T' K
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
+ q5 v, X8 n" e# l$ x6 yend;
- o6 ^5 r3 I" G V& q. R! b3 v# P9 {% J/ E9 d
procedure TFrmMain.Button1Click(Sender: TObject);
6 l) l/ f1 K3 t& z% D. `4 `; Yvar
* u" M: q. q' [* IdwThreadID : DWORD;
3 @- H, ?3 C- h& |1 W$ ?begin 6 B% V0 N- X, r; |# Q4 y1 [
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
+ T" D4 c, Z4 n% Z Aend;
- z5 ~$ c. g( N% W1 {3 K1 u- i6 v% v/ g
end. Q. N; p) \+ u6 z7 `
# K: k3 ?5 R" Z7 j6 Q! H
* g8 V( S1 ` g- F$ t1 z
补充:
/ ~3 b' _# z J(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. * A. e/ e+ D% J
( J8 v" V# U: I/ C2 \- k
(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.
' x. [! g9 f5 g, j& w' Z& `+ @* {3 h' \( d
(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:
% S: T: q8 e, {* [, @7 Sunit ServiceDesktop; 8 z) S, h5 l F8 e) I( d$ v4 ~4 `
* L2 W# b8 T6 s5 T* [4 K, S
interface " S& S z) e0 T8 i0 Z
1 P+ z5 Y% |7 s0 C& F# G
function InitServiceDesktop: boolean; * ^+ h X# @. A3 K
procedure DoneServiceDeskTop;
7 F+ L' y) z6 J
4 T% ]$ {, g# c% {3 e9 Iimplementation ]# F7 Q2 ]9 j- d$ R& w
9 ]. I+ T8 D0 u: w
uses Windows, SysUtils; , G1 S) {/ A$ ]: Y3 {; Q0 B: J
2 N B) w5 i& n1 r% E
const
6 X3 k* ?8 M3 ^, j; Z" ODefaultWindowStation = 'WinSta0';
0 t/ ]4 g$ I9 Z' W# @DefaultDesktop = 'Default'; ) G N0 Y% {' x( c" g" Y
var
% F9 \9 s# d9 chwinstaSave: HWINSTA; 4 T: A D+ x5 A9 Y G, _/ w
hdeskSave: HDESK; ) V# ~# r, J! o3 F
hwinstaUser: HWINSTA;
5 A: |1 `. p# T# V! r& s) ~; r L" ?hdeskUser: HDESK; ( h; J) x" S1 |
function InitServiceDesktop: boolean; - h( g$ a- S2 a3 K
var 5 t; p2 P: Y" B% o/ I/ l
dwThreadId: DWORD;
2 p; _1 p+ P$ ^% ?6 `begin B/ k/ R$ X+ f
dwThreadId := GetCurrentThreadID;
; R) d/ l' m$ s/ K! w// Ensure connection to service window station and desktop, and
/ Q& m& a' W) X// save their handles.
# Z4 _. q, G8 f$ p+ A& BhwinstaSave := GetProcessWindowStation; + n8 _7 F5 W- n" R B
hdeskSave := GetThreadDesktop(dwThreadId);
- Y* p; W; @+ X+ P! _. c% U/ V6 x H, T" M) \
7 M, I+ H: \- jhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); 5 E3 ]# b2 x0 h5 d- o4 g- y& p
if hwinstaUser = 0 then
0 }$ u! D& Y) r) xbegin " ? {/ i- J- z% ~3 R% Z
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); ( K1 `* W9 y5 V5 }2 {, E: H! i7 I- b
Result := false;
! T% B+ J: M! b" lexit; % \. b& v, ]+ ?# E2 A! c. S0 z; V
end;
/ E4 C) Q; h0 u# ^6 A& h0 @
5 R6 }& G. B/ Oif not SetProcessWindowStation(hwinstaUser) then # p% P0 t+ K1 Y* C% q& @8 G$ h% p5 ]
begin
8 q6 q$ x5 V9 K& P7 w7 w$ N6 [. WOutputDebugString('SetProcessWindowStation failed');
2 V* q, V- R3 a# [0 l, c) hResult := false; & v2 X- x# y# ?0 _- N0 V
exit; ' a7 h; q# d N6 _: h3 ]
end;
3 Q0 [* i$ v$ q3 C! x2 I
3 [3 E) h* R4 g+ n9 d" GhdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); . g$ h6 X4 [- f* R
if hdeskUser = 0 then - F- |6 }' f9 b) r6 J
begin 2 H8 ]1 V4 r/ f) p: W+ x/ M- _$ B# o
OutputDebugString('OpenDesktop failed');
* z$ v, R( D8 e( eSetProcessWindowStation(hwinstaSave); ! X; X" q3 z) T! h* S% ]% b' V6 ~
CloseWindowStation(hwinstaUser);
' X" @* b. K' k2 ?1 }8 X. UResult := false; 5 B; _$ r2 \* J# j" V& z" o. Y6 @
exit;
7 J0 j M- x% R2 n% ?: C" e$ Rend; / V, G# p! Y. P7 _+ S
Result := SetThreadDesktop(hdeskUser); * j+ l$ r$ i. _6 n8 H" R5 M
if not Result then ! {) B8 W8 V U5 k! O
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
- k$ S; N) o0 @7 W% ?3 yend; 5 r* A: f9 L3 R- l7 J% H
/ v1 b# s, \) n# P* O8 xprocedure DoneServiceDeskTop;
1 @- Q* ~1 h+ obegin ' x& x" k( e6 [. m
// Restore window station and desktop.
) s8 V: a% Z5 B4 Q6 C1 wSetThreadDesktop(hdeskSave);
5 D% S8 `: S& E6 SSetProcessWindowStation(hwinstaSave); . X1 Q" w- B. ~0 a0 T# s; r R
if hwinstaUser <> 0 then
* [9 ]% [5 n) Q' _CloseWindowStation(hwinstaUser); 6 f8 c2 u8 c" b w0 j! Z+ x; \
if hdeskUser <> 0 then
: r. g) ?5 w0 q J, j1 RCloseDesktop(hdeskUser);
$ u; g5 N4 c" \8 G* o9 R( d% }end;
) B, K: F( ?$ m* v5 f/ Q1 I0 e
) U7 A( X3 W2 Uinitialization 0 t" Y! s+ }1 ^: c
InitServiceDesktop; " r+ g3 r$ O( D2 a$ |; ]
finalization
+ a% J) w, \( U; u. a" E3 TDoneServiceDesktop;
7 n: ]9 V1 `0 ^7 @, W Yend.
/ b, g- e& v& Y1 P7 h* r更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip
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`9 S& n1 w3 {- e2 o(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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; \, n, k J# w: I& _/ ]6 Munit WinSvcEx;
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5 Y( S* I( H+ n; |3 ]! L; uinterface 1 d8 V! ^( Y3 J- I% Z
% j% m% U" A" T1 T: V2 Luses Windows, WinSvc; ; J$ B6 n, ^+ C; O: v/ R( ^
8 H1 I: O- @; e; Z) {# n
const
0 `% K7 V m6 W) b//
# x$ c7 v3 y; i// Service config info levels
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4 v Y4 Y- U! {& f* J# O5 BSERVICE_CONFIG_DESCRIPTION = 1;
$ W4 l' J, T8 v9 A& p* z6 ]+ aSERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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