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(1)不用登陆进系统即可运行.
8 Y0 V6 Q8 a* P (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
7 N/ d( g: r E1 H' ?; K x
# Z1 w8 S. V6 F1 j 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. # M4 _2 ?% C+ V8 ]
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:
4 c" h$ Q5 O. i* T% q( l
2 |6 u) |. y! `6 z& I' Q5 q (1)DisplayName:服务的显示名称 % J" ?, X7 ~ Z o* {
(2)Name:服务名称. # m% J9 s6 P9 H5 g/ r
8 |, [* W8 u/ c$ ?# A1 V+ t! { 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.
! d9 h0 l* n* Y' E4 F
0 n3 Q4 I4 \! J 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.
/ A, J, A$ Z! y. E: ?; r; B* b
3 U+ e8 t1 P7 V7 Q 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.
- u- S' s, W) J3 S2 P2 E" F3 K: I' m% ^, x' w1 \
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: 0 P1 X, f% n! ]7 F
# @& F5 o- g/ J5 r4 p" n
) b8 V5 @" U9 f6 `unit Unit_Main;
" Q. {+ c; b% I' L K5 m( @8 x. ]; G# h% \/ X
interface
( M$ G) G) y1 {0 O2 E+ x) [8 i, B2 D0 Y% Y$ l1 U5 h
uses
5 x' A; Z9 S; l6 c4 d. E1 b4 v+ YWindows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
8 V; D& U3 d6 B d+ }: }! x" }, R1 z1 L" g3 h: `
type
( g) E3 o) k+ E7 QTDelphiService = class(TService) 5 l. f* I1 G2 z. }) Z, A9 A- m
procedure ServiceContinue(Sender: TService; var Continued: Boolean);
e7 e- o. p( a9 l4 Iprocedure ServiceExecute(Sender: TService);
, Z& G9 G, o* \+ N9 V" i5 [5 d+ `* Qprocedure ServicePause(Sender: TService; var Paused: Boolean); 2 U0 `( P0 I& a: H* o
procedure ServiceShutdown(Sender: TService);
9 N/ l/ m2 O8 O/ T5 w3 L! O! J! ?procedure ServiceStart(Sender: TService; var Started: Boolean); " S# m. a! ?- L1 Q2 H4 D' r
procedure ServiceStop(Sender: TService; var Stopped: Boolean); . D2 ?3 ?, D' c+ U; Y" x
private 4 q% u* p z0 ~. K4 `8 m
{ Private declarations }
, Z9 U% p) c6 X; M2 Z$ Gpublic & O L" h" d9 _
function GetServiceController: TServiceController; override;
& G7 [+ X+ Z5 S$ l9 _{ Public declarations } ! n4 \ P4 f' R9 ]9 B/ b
end;
7 K: U0 o# Z# t
) L: O, l1 O0 hvar 1 X* d0 U8 t5 `) u2 e
DelphiService: TDelphiService; & \6 X7 f1 S% J, u2 O g
FrmMain: TFrmMain; , t$ J0 w* P9 q" @% O& Z
implementation ' X/ p. N1 B6 G$ K7 w! V
9 Y w6 x- }7 l
{$R *.DFM}
8 \/ U+ M; q6 x. Y' `" V* K8 y) h$ F: C; a5 L! `
procedure ServiceController(CtrlCode: DWord); stdcall; 0 T+ Z; l/ i5 n$ {" a
begin
+ q, w% o0 J5 S i$ Q# g. hDelphiService.Controller(CtrlCode); % U, A( H- z2 Y& q9 k# q
end; 4 f2 X; \3 {) [) X( a# I V+ Y. g
D4 B0 b* j: D! D9 p) C% Efunction TDelphiService.GetServiceController: TServiceController; " M' W+ N; o7 }
begin
( q: ~* T. \& i: a# _9 a8 c9 F7 HResult := ServiceController; # p1 {# s: U- n" Z. c- e. J
end; 1 t$ U* E1 z: w0 V( ] \
c! |/ J y& O- wprocedure TDelphiService.ServiceContinue(Sender: TService; , d0 t2 @" m& c8 ?9 d
var Continued: Boolean); . [0 Z$ D2 r/ \; w7 K8 ^
begin ' [2 _* W0 W5 @9 v' j8 @: J! r
while not Terminated do
* l+ N( R" q" \) }6 A; ^! dbegin 0 q# |+ t( F- h d8 j- R+ R% P
Sleep(10);
0 u1 [+ w% i9 C( o5 F% zServiceThread.ProcessRequests(False); 4 u9 Q" Z8 z9 X6 n
end;
' O6 R/ L! n/ r( @( nend;
7 ^+ N* Q% [9 q( ~7 U: t6 ^+ m' A* |: K, e; T7 @8 {3 x
procedure TDelphiService.ServiceExecute(Sender: TService); 5 h4 Q D% Z, M2 M9 y2 _6 @
begin ) H' x8 Q6 w3 r7 i& `8 V
while not Terminated do 4 G2 E" ?" k0 J6 U" L
begin
8 o+ p. J6 Z* S6 q2 V( M8 W% y& ]Sleep(10); 1 P2 x2 _5 c/ C, f' o6 A T
ServiceThread.ProcessRequests(False);
9 \$ E; d! Y: |) s: Hend;
2 @; M2 w/ t* jend; 5 w2 w) `2 K$ d3 q
& \) \( L3 X: M* T* D( P7 K: u
procedure TDelphiService.ServicePause(Sender: TService;
) {: E! `1 a" {# e. ^var Paused: Boolean);
. V d6 `) f) h. E- [begin * z) X& s% V# Z
Paused := True; , A" a! j4 F6 [& n! C) n
end;
6 U# Z2 @* D9 F; K( R3 B( ~% C8 Q2 x+ r" i8 I0 b, A; x" `* u! s
procedure TDelphiService.ServiceShutdown(Sender: TService); % ]7 `) O% Z' a! Q" S) }6 ^$ [/ m
begin 4 L3 b. {& r. G9 S/ {
gbCanClose := true;
+ x; h1 O3 g# Z6 K% G, y: n$ j; zFrmMain.Free;
2 ~2 B3 U4 B9 y% e, oStatus := csStopped; # s6 I/ e9 m& x7 S2 e( O
ReportStatus(); 9 U: b( E: P- |3 Y- S
end; 4 l0 {% w, {/ y6 q
; T. L+ |8 L4 x2 W; p8 V' T
procedure TDelphiService.ServiceStart(Sender: TService;
5 b0 w* _; Q* x/ D. Ivar Started: Boolean);
3 ]4 v( E2 s& m1 Dbegin ) H$ o/ M0 F2 U0 u
Started := True; 9 o0 n' B8 k: Q+ c' N4 K
Svcmgr.Application.CreateForm(TFrmMain, FrmMain); b% m- T" W) a3 n/ R
gbCanClose := False; 4 a1 R: M. B' w) G! O0 `' d( K
FrmMain.Hide; # l6 Z* L0 _3 E( J. B+ o( h
end; 3 ]% }+ b1 s7 H1 Q
* E8 x" y0 V' u/ e* t! l' vprocedure TDelphiService.ServiceStop(Sender: TService; 9 c. a7 j; T6 x+ F
var Stopped: Boolean);
+ ^) {: r- S! W+ Ybegin 5 }7 b! S3 _. ~( g
Stopped := True; ) Y; H! K" M: K7 \' v6 N: D$ q1 m
gbCanClose := True; 5 g. n8 @. V8 v4 L: Y( j) \% h4 d* |
FrmMain.Free;
6 J' N7 Z" o4 p9 K2 gend; 8 x" C) i; p9 A0 S! z8 y3 h
/ K0 q& E7 H' N3 S3 ^
end. ) f" g' ^$ P8 ]- i
$ } O3 T! W W# H# s0 [9 [$ x& R( m' Z
主窗口单元如下:
4 h. {: [& U" |4 B4 t- g# F( M
4 n2 h. ?, i/ `- {% Ounit Unit_FrmMain; / [3 f5 v7 @- W1 @. v
- H* T7 ~0 q! Y z2 f$ V* a
interface
9 u& ~2 N+ ^* M; p0 d9 T
% W4 V2 v- X2 A. y7 V9 {4 cuses
, h# E, K, m( R3 b0 Y7 [Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
5 y$ U5 [4 M$ a( z3 h, ]6 ~Dialogs, ExtCtrls, StdCtrls;
, O1 y7 b1 [: Q+ H/ w# N/ J2 x; z n; R6 H# v' T2 W8 y S
const
$ N- d/ I* f; XWM_TrayIcon = WM_USER + 1234; % p& l2 t/ O# r) @3 Q0 {: e& b$ k( a
type 6 o, M9 b% t. d: Y/ b: R
TFrmMain = class(TForm)
9 A6 x% `0 K# z9 l/ HTimer1: TTimer; ; b- O& G1 \- L" V
Button1: TButton;
3 O Y- g& L3 Q% wprocedure FormCreate(Sender: TObject); 3 q' \5 k3 I; I _. {/ Q- t3 B& C
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); ( v; ?+ ^$ [: H) L: E; G ], z
procedure FormDestroy(Sender: TObject);
0 w" G# B2 _3 Aprocedure Timer1Timer(Sender: TObject);
% {# {3 |# q$ g8 X* s2 f3 A0 Gprocedure Button1Click(Sender: TObject); 3 x% ?4 K4 \* a' `: n3 H" O4 Q0 t
private ( `6 X) D0 x) o- K5 H
{ Private declarations } : y$ O+ W" o0 O! Z0 R" }2 y! W8 ?
IconData: TNotifyIconData;
; c5 i1 V2 m1 Tprocedure AddIconToTray; 1 w% H& ?4 v% R
procedure DelIconFromTray;
" z6 T- b3 ~8 _procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
' G& D5 q8 \1 g/ z& q4 @procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
1 l+ b2 t0 x/ r# J" M2 ~7 m, xpublic ' B$ N1 ]" \6 G, l3 ]# b* k8 K
{ Public declarations } ; W0 W* Q6 K: h1 P
end;
' e3 p% b8 O$ w( _: n, e0 I5 H9 u0 n" G9 |" }/ B
var
5 y, w, l" L, A9 j+ B1 qFrmMain: TFrmMain; ) _" @0 v, q& l' {( J' Z
gbCanClose: Boolean; ! F! }* g7 j3 T" E0 l; q- Y3 {
implementation $ P2 ^! _; C% n. N% ]6 U+ b; O
. k7 F( o6 \& U- P{$R *.dfm}
; G4 q Y- S) ~: r1 u) d5 d$ D4 k9 ?+ u
procedure TFrmMain.FormCreate(Sender: TObject);
1 y# q& p5 J1 m$ j% ^) Vbegin & b% I! d( F; y# l
FormStyle := fsStayOnTop;
7 M+ ]. D/ g* @5 g2 aSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); 3 S0 N% O# ^7 b1 l# T6 R$ k+ X
gbCanClose := False;
0 h( g1 a( r# i0 |Timer1.Interval := 1000;
8 T# R( }) X3 I/ O/ _/ fTimer1.Enabled := True; " u6 K& z( R9 e
end;
0 Z6 ^6 [* c, {, P }4 R5 \7 t
/ l K' `1 q" A7 E' y6 Lprocedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
1 s3 [8 m) b+ Dbegin
2 f9 S8 }& O3 }3 qCanClose := gbCanClose;
$ P5 v; D- l7 J ~ [- ]" uif not CanClose then # B& Z$ V& a7 Q) e4 d) |. y
begin
; N* v# K1 l+ Y" p/ q4 CHide; # o* ^9 T* I) p% Y' Q
end; 4 \) r: D ]/ d* I: [* J0 m T
end;
: ^$ f3 j" G* }) a
; o+ ~9 G0 }( ?! Gprocedure TFrmMain.FormDestroy(Sender: TObject); # J- T+ K) E. G3 E5 g
begin
9 g' T" I9 C* i9 Z9 p& UTimer1.Enabled := False;
6 I0 X: T6 X5 {2 |DelIconFromTray; # P- Q7 Z. w0 ?3 L( w- D+ _7 I
end; : J! }+ e( c5 b# I- u8 b" \
7 p; G5 g" F/ d% P9 R! k' Q8 zprocedure TFrmMain.AddIconToTray; 0 k8 q; y; O5 H2 p7 |
begin
' T7 L& S( |0 c' C) M0 bZeroMemory(@IconData, SizeOf(TNotifyIconData));
" L" e$ K8 w. e1 QIconData.cbSize := SizeOf(TNotifyIconData);
: ~( x7 V5 z1 F' u1 UIconData.Wnd := Handle;
5 T% S2 ~* c9 z3 A) n0 kIconData.uID := 1; % _5 o) i& H) t9 K
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
6 c _1 c7 s/ QIconData.uCallbackMessage := WM_TrayIcon; 8 u' h. U( I }) n' x" u
IconData.hIcon := Application.Icon.Handle;
# j$ B0 k5 M. t6 m x4 RIconData.szTip := 'Delphi服务演示程序';
8 s: K. R1 d" F# P( n& X# eShell_NotifyIcon(NIM_ADD, @IconData);
3 ~" K/ C* ?% [! D" j q" y4 Wend; 3 u/ k& Y3 h8 i
F# s- ?4 E5 Q# T+ q& U# ^procedure TFrmMain.DelIconFromTray;
) x/ M; N: V" e# [6 }3 xbegin
( l( f( z2 U# D# cShell_NotifyIcon(NIM_DELETE, @IconData);
6 U8 r+ [! m3 D- @' I% E T4 u1 Fend;
7 s4 s; W( U/ h: b; _" ^
2 c- S7 m7 w% G; U4 T3 t6 u: pprocedure TFrmMain.SysButtonMsg(var Msg: TMessage); s8 d% C( u4 Q2 f1 M! I
begin 5 j- J# l) ?. d7 }
if (Msg.wParam = SC_CLOSE) or , X, q- v2 P7 d$ y
(Msg.wParam = SC_MINIMIZE) then Hide ( z/ ?* o) [& S2 ~
else inherited; // 执行默认动作
( N+ |6 U$ r) A9 K) w6 F8 @end; 0 ~ y0 @3 K4 P% t; C
& O! j$ r5 G5 R2 T# k5 g, @procedure TFrmMain.TrayIconMessage(var Msg: TMessage);
. A3 K6 t$ c) ^' U, tbegin 5 \2 T% p* u9 p$ Y o! F/ y
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); 9 w5 R% D4 r0 y6 b* w8 @: d) C ^: f
end;
2 T) H& Z9 \! O7 v4 b N4 j, u, l' k+ v r1 Z5 \
procedure TFrmMain.Timer1Timer(Sender: TObject); 7 `; u/ {( z7 @* ~
begin 1 }" C% o/ W) U6 _% ]/ S7 l u
AddIconToTray;
9 N2 w% i% f( Y- {5 ]end; $ C# q* _% a6 A/ E8 S& w2 \* y
8 `' X. K9 ^6 h# B6 N5 Rprocedure SendHokKey;stdcall; - [# E: p' _# B& R, H' _) k
var p3 b, l9 Z. J6 A
HDesk_WL: HDESK; ; W8 G+ g% r* t& |
begin
( X1 D9 w& ` L3 T# b, GHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK); 0 T1 x: Q& W8 D2 f* G! t
if (HDesk_WL <> 0) then
3 M! U2 ~3 O" c5 f( Z4 W2 U% hif (SetThreadDesktop (HDesk_WL) = True) then 4 o* h9 w. u3 R2 a0 r" C6 x
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); ( i* @. y' }. x# d
end; ; |! R, ]; U: G p2 ~6 Y0 O
$ [% M0 Q% o6 @- O5 \. a
procedure TFrmMain.Button1Click(Sender: TObject); 7 n; B# V; b+ E8 _2 e' ]; g
var
% {( j7 A6 ?3 FdwThreadID : DWORD; & i! R) Y1 j8 u/ U0 O( x
begin
1 n# B+ C* E* Z8 hCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); - b5 k0 `/ R9 |+ I K) {
end;
9 X7 k4 ?9 ]/ O1 k2 i- j2 E% k, O; E
end.
- W: B( W) V9 T/ H0 T7 W% e( B1 E$ Z! E5 @' s$ t& j- ~+ b
s/ ? B6 h! T2 P: r) f$ Y
补充:
! O7 m( @: e) V(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.
, y9 q+ S t; B; K8 P4 v& S. O
6 r* X& k S* ?6 V( F(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.
2 N, t$ V4 g9 n6 x3 W- S$ u8 ]9 f9 f; T/ a
(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: 6 Q$ {3 N/ {0 e- w( e" [
unit ServiceDesktop;
, j" B. C5 R6 U; s4 L$ \* o' h- h, O& P; b z
interface
' E: o0 f! w. | U9 C( a x
* J. ?8 v$ N5 afunction InitServiceDesktop: boolean; $ Y; v7 @1 S4 }0 N/ }2 }# ?! p
procedure DoneServiceDeskTop; ! U# r0 ~/ N. F( Q: l; q% V
" P) B) t# S: y& y; o
implementation
- G9 Y- l$ S/ R9 Z. S
$ T& k, Y9 |: k3 t) n, Z) muses Windows, SysUtils; / b: w- g6 k/ d2 h% t) I2 l
9 \' e8 ^' y. H: Q* N$ E, ^
const 2 o, e) [' u/ Q" R7 r
DefaultWindowStation = 'WinSta0';
# s4 U' _9 [3 J TDefaultDesktop = 'Default';
" ~9 Y4 v6 t. l& q, W' y7 ]# T& ?var 1 V- O: z9 o1 K$ y6 p
hwinstaSave: HWINSTA;
. i- @7 _) Y$ X0 |, _8 {4 Z7 B# r- O6 ~hdeskSave: HDESK;
8 r" w" F3 M+ W- GhwinstaUser: HWINSTA; 5 h: ^3 P) N: f/ v
hdeskUser: HDESK;
% ^' o- V1 h2 I W6 c$ N# [2 hfunction InitServiceDesktop: boolean;
: Y8 W ~5 B- O( G0 Z" z- l* lvar
0 D) b }, ?: X8 e# G' OdwThreadId: DWORD;
: b4 }+ d4 n. U# b- nbegin + G* q6 E1 k( s
dwThreadId := GetCurrentThreadID; ' K; n$ Z+ Q. |8 q) P$ q
// Ensure connection to service window station and desktop, and
/ ?8 ?6 c) u4 v3 L* g f// save their handles.
6 h5 R) h# v" B% \1 `/ L6 d* g# hhwinstaSave := GetProcessWindowStation; $ S) l- t# m: H5 {* X
hdeskSave := GetThreadDesktop(dwThreadId); ; E: V3 v* g4 q# ]
% t4 i+ n7 M" U% U( K" a) A4 L' [7 W( r6 P- l0 m; F
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
2 b2 s- n' ^" V3 uif hwinstaUser = 0 then 6 ]9 Z, z" s6 ^( d1 k& _+ x8 d7 i
begin
: h- l. V' K) T+ _OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); $ T: J9 D; e M1 S% t, g
Result := false; ' R" l& F9 i2 V( A
exit; ' {, H3 B" j, O* ~% u( e
end;
: H, ^* @2 b; ^+ q$ e6 {# B
* P* [- \" {) H9 S: S5 M' tif not SetProcessWindowStation(hwinstaUser) then . u% b# Y) n$ G+ H6 O
begin
% ^7 l7 u' t( ?( \, SOutputDebugString('SetProcessWindowStation failed');
4 E1 b T" z6 |# ^4 RResult := false; * S, u; V$ {( U6 {+ L
exit; # G4 Q! X+ ]6 L9 r- g
end; $ m/ R6 V5 y/ G1 ?; Q
; @& h x# h4 G
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED);
2 H) x, l( R/ V# B) m$ Oif hdeskUser = 0 then
- i: n0 O2 ? k' C* Cbegin
# L6 v# a& l1 V) p* v' f, M, QOutputDebugString('OpenDesktop failed'); - F" z8 t8 g7 i+ L
SetProcessWindowStation(hwinstaSave);
" A! |$ B' n0 M) |CloseWindowStation(hwinstaUser); & \7 E. ~+ ?- z: \4 u
Result := false;
1 e& Y9 ~/ z+ R7 v9 ]: K( [exit; 6 w G/ ?, ^6 |8 f, u
end; 2 S) r* h! l/ y
Result := SetThreadDesktop(hdeskUser); * }; I9 Z; E/ R4 A4 X
if not Result then
0 r- o& W" D% U! M$ \4 LOutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
9 f3 w7 _. ]; ]6 {) gend; ) x" M0 d# v' {
1 s6 k- @& n3 n3 L% |8 v3 ?$ Bprocedure DoneServiceDeskTop;
' H9 ~. z! e# P @begin
" G" p8 X3 d- T: q' P// Restore window station and desktop.
V2 E8 Z; n& ^2 e! C& @# X/ }7 ySetThreadDesktop(hdeskSave); + Q( u# B! ~ @: z
SetProcessWindowStation(hwinstaSave);
3 l# c: X4 o# X Gif hwinstaUser <> 0 then / q9 ~- Q5 X" J4 u: D- F
CloseWindowStation(hwinstaUser); 1 e0 p* U* v% a" H+ o: j
if hdeskUser <> 0 then , P; N5 m; l+ w' B) k. v
CloseDesktop(hdeskUser); 1 \( m2 b2 ]. X1 b1 g
end;
% Y# C) y* @, g' s; ]8 A1 N8 {4 w! m# }/ [! C3 _+ H. N' R3 S
initialization ( M) n7 R3 {1 t6 N5 g9 w% u) R
InitServiceDesktop; : Y4 O) r/ Y0 Q4 \' f" ?) v
finalization - y+ ~, f' k# k' X, O) W) A0 \2 u; d
DoneServiceDesktop;
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更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip 2 k0 }6 \' Z& F; V! T
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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:
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9 u/ a- y& r5 p! xuses Windows, WinSvc;
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' n* z3 W& ? O" G3 V$ y/ ^//
+ G$ K( u3 y: g* [8 H7 s' k// Service config info levels
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SERVICE_CONFIG_DESCRIPTION = 1; ! \; a3 ~) \; o* X
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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