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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.
! R! ^* f9 Q$ } (2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的.
( ^$ v7 S; k* F6 d" L+ w6 I' {1 y" b& Z; H0 J4 V
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. 4 R" b+ D# d* W# O# I7 a d! V
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 S8 D' M# L/ P$ o
0 k! J+ |5 ^) w h4 T0 D% D
(1)DisplayName:服务的显示名称 + f+ L9 o/ W5 S& |
(2)Name:服务名称. & ?' p; y" W8 g
/ o0 J+ {2 A2 c4 U8 S- D4 D 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.
- n6 N0 f5 r6 N E G8 A. r3 ~
9 }7 f8 v. u6 _* r$ g0 p+ k1 s 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. - X7 k4 B8 i1 c) z, \
$ i( _( q9 Q9 ]! ~8 g1 L g) E' ^ 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.
4 G1 B/ s* n) t) N5 B' R) {4 c* e3 x- q3 q
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:
( n/ ]- i) R2 I2 i! R9 i
. ?0 d! K/ f M0 a: r: P9 n0 k4 U0 m: g/ @% Y0 d: g% h
unit Unit_Main; . A5 b. g7 M" z4 ]/ A; g4 I
0 q( K: ?0 X! K" m) z
interface . _2 ]5 u0 i) V/ \
; m5 K! s; c( w4 G6 n d
uses + R, }5 `, I1 y7 ?- T
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain; . } @( k% i! Q3 m4 W1 q
. R) i9 n+ H& Ttype " Y( \! _: y5 z. K/ J1 n
TDelphiService = class(TService)
. i, Z; v8 {, x' k) M# G) M( Kprocedure ServiceContinue(Sender: TService; var Continued: Boolean); 8 e/ z0 ^+ B" u% ~
procedure ServiceExecute(Sender: TService);
- E0 B- h3 C/ u' S5 hprocedure ServicePause(Sender: TService; var Paused: Boolean); # X* x! V1 s* S/ ? a
procedure ServiceShutdown(Sender: TService);
5 j( f* F7 ]; F) |+ Vprocedure ServiceStart(Sender: TService; var Started: Boolean);
: ?0 l: g; ^5 C9 eprocedure ServiceStop(Sender: TService; var Stopped: Boolean);
$ B) W6 i3 I( O, C+ T+ D0 h$ ]8 W1 @private
+ t" y0 j+ f, s3 N{ Private declarations }
$ Y( m7 F9 H8 e spublic / Q, D6 a/ W4 i
function GetServiceController: TServiceController; override;
& \8 X) O' M9 d0 K9 ^+ _{ Public declarations } ( Z) K* i0 Y$ b! S! W
end; % ?* a! \6 d7 t* N. ~
0 R2 D* P8 W% }' q6 G4 pvar ; [3 ~, m6 Q: ^$ v
DelphiService: TDelphiService; * Z: M/ q1 N5 F( g9 p
FrmMain: TFrmMain; " ?( L P1 X% o8 ~" X9 T
implementation
" z3 ]/ h3 ?5 a
6 n2 t( f. b& E% S- F{$R *.DFM} & ~3 l1 l# u$ P* S0 L* u1 p/ s
/ {& _3 s4 X0 F3 O/ @4 ]0 Z& M4 A
procedure ServiceController(CtrlCode: DWord); stdcall;
' H P0 h1 T% {begin ! Z' n% u5 n7 l8 q; g( ]8 v
DelphiService.Controller(CtrlCode); g$ A% C7 v, l: _5 y0 D
end;
8 K. @8 W. g; p2 r1 K1 W
8 y9 n: O% }1 v0 ~ A: yfunction TDelphiService.GetServiceController: TServiceController;
( Z7 G& Y& a/ S; S8 E+ Tbegin 7 ?1 O/ u) {5 K; ^
Result := ServiceController; 8 V+ m6 M5 [- T& g+ B* ]0 I
end; 9 g0 L9 _5 _. A- U: ^1 ?
1 e* z- {% n% y0 |
procedure TDelphiService.ServiceContinue(Sender: TService; ( \$ i) }( F2 k6 C0 W# h
var Continued: Boolean);
7 M- c9 w+ {5 C; W9 R' ~. obegin
. g; c0 b! T1 Y8 g6 ?5 }7 F# jwhile not Terminated do 9 s3 d3 S* y7 t+ G( @) I
begin : O1 F4 U T& ~8 z8 `$ s& a' a, G
Sleep(10); 9 J' b; B( U# U0 b
ServiceThread.ProcessRequests(False); % V, s+ `. N& f3 q
end;
$ V+ |1 Y+ p* p8 t" A# gend;
/ x4 R' _9 ^0 {8 u% a3 |. w
. c1 Z% ^: W, l' _1 E& ~: m/ Jprocedure TDelphiService.ServiceExecute(Sender: TService); + N" S3 m$ Q b" q
begin
# h* i2 L# g; Z0 bwhile not Terminated do 4 G6 U7 g. Y+ f! Q# O
begin % K* ^. _3 c: `& |3 O* ~6 ~3 y
Sleep(10);
$ w. f, f) o3 n5 r+ I* a2 WServiceThread.ProcessRequests(False);
+ O7 R( E1 A8 {1 nend;
M2 a3 Q/ A- x, j: n4 r- Z+ Eend;
' C; L$ i7 `/ L8 _" I. ?8 y1 t# P0 f
/ j- p5 ]9 p/ b1 V$ r$ y% E1 Sprocedure TDelphiService.ServicePause(Sender: TService;
7 p9 ?) l- } R6 O7 h6 H# Kvar Paused: Boolean);
) y. b/ v; q' b( y3 T3 l9 vbegin : d/ I& |# r- c. }' E
Paused := True; $ r/ H T0 M$ N4 j+ i3 s
end; & h. x! g2 @ `
' W5 }, C- V$ p* j! lprocedure TDelphiService.ServiceShutdown(Sender: TService);
3 M; ]% ^, h6 ]* Rbegin 3 v5 v4 c9 L: B' i8 r( M
gbCanClose := true; # Y7 D5 E$ ^: W3 ]% a( B
FrmMain.Free;
8 u) [, ~1 K1 E) d' L: lStatus := csStopped; 8 w I+ P& R* E7 t8 z) b
ReportStatus(); 9 h T( T6 y$ Y2 j/ V/ j
end;
# }7 |5 e2 v# z9 F7 g3 I) z/ T Q9 k9 ?; ?) d: H
procedure TDelphiService.ServiceStart(Sender: TService; 5 w5 U& q1 h& q
var Started: Boolean); 5 T- e" l+ T) Z$ o$ O
begin
* Y2 N7 C- H2 g* e. O: T4 d6 FStarted := True;
+ _" y9 m/ C5 L4 r: t! aSvcmgr.Application.CreateForm(TFrmMain, FrmMain); 1 v' c. ~+ b4 Y+ R
gbCanClose := False; 0 |) b3 j6 X$ c0 p
FrmMain.Hide;
; Z. ]1 W# R4 k3 }8 Q0 |end; " c! ?8 ?" X! k+ w+ M3 F4 x: G4 F
~+ }! D! C8 x$ j" [procedure TDelphiService.ServiceStop(Sender: TService;
5 ]4 `2 _0 W6 g# q$ ]" @1 {: pvar Stopped: Boolean);
- \ c, `& _1 c; Vbegin
0 S/ |! A+ u! MStopped := True;
0 O! u5 _) Z! F4 B% ^gbCanClose := True; ( _% `3 ~, j5 G, M- J, h# x
FrmMain.Free; ; {* [6 y& {( u3 a+ |# d2 z( I
end; - F5 o( B, I1 n
. G9 v @- c% Y
end.
- a/ |, ~7 X; I6 ]; G7 p) K! h9 O) Z" [' X% H, [0 C9 w
: e- p8 h% \. S& Z* E6 i ?+ ?
主窗口单元如下:
* O1 ?' R4 t/ t
- K/ |! ]9 p2 ~; O+ B( funit Unit_FrmMain;
6 ?# T5 u$ _" E9 u4 E- \7 H5 f7 O: | s/ y7 g
interface
; k' q" E- @9 z9 D1 E* T: u3 W. W; |$ t! ^# I6 s
uses 9 _ l* i; L- T* h$ Q8 n
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, : }) p J4 ?/ @* Q
Dialogs, ExtCtrls, StdCtrls;
5 Y, B4 u! j; L7 U" |4 `; f) u" e# l- J( B4 ~
const 7 A1 V6 V- @5 R* y' X
WM_TrayIcon = WM_USER + 1234;
E' f5 x% Z5 B% {7 btype % P4 c- k2 [/ a" A$ h' ~9 U" ]
TFrmMain = class(TForm)
: J0 t7 X, ]1 z- t5 e: f( ^8 L! \Timer1: TTimer;
1 s% S9 @$ k. x; t# tButton1: TButton;
' ]* L0 ?. L! m/ a& e% r+ F1 f) G2 Eprocedure FormCreate(Sender: TObject);
# N1 z% z6 C- u6 N# @procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
2 I! i0 E+ R$ j! s$ g4 d' bprocedure FormDestroy(Sender: TObject);
: [5 A1 T5 Z! G: N; g* [9 Pprocedure Timer1Timer(Sender: TObject); 8 a% E" R) D8 e$ L
procedure Button1Click(Sender: TObject);
! D3 q+ Z: \& a+ ]3 A! a. O. @private 8 Q. S# S$ p/ Q+ O: k% y
{ Private declarations }
2 E, L6 L. p! n$ gIconData: TNotifyIconData;
2 [5 _/ ^( m9 O' U* L) F1 @4 Gprocedure AddIconToTray; * C" s3 _6 R) D/ Z4 s c9 }, u2 n
procedure DelIconFromTray; 7 R4 g2 q4 ~: `# Y& Y+ c* X
procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; ) w: W. \9 B% [& P- C4 L
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND;
0 {# ?* n& ^) f9 u$ y) K/ Q! apublic ! Y1 ?0 q( [2 d/ p+ u# _. u" m
{ Public declarations }
( X/ U' |# }8 yend;
+ q( @1 I; R2 H' R6 b. U" _6 ~8 }6 u# H8 k
var ) ~# _/ O4 W8 Q8 u& j4 {, i
FrmMain: TFrmMain;
0 V, J$ t8 k+ {) _gbCanClose: Boolean;
1 G9 C4 P8 e& Y$ h. e" Z* ximplementation 6 e" b0 }2 B) F# j: P# c$ X
8 j2 d# r8 J( ]" d3 X( }8 T{$R *.dfm} * [% T3 M3 K# e! p3 Z
3 w; {8 Q b' k' qprocedure TFrmMain.FormCreate(Sender: TObject);
- ]2 X+ v' N _6 M* ?begin 0 W- n* _+ J4 Z$ _' }, d, [! k o. ]
FormStyle := fsStayOnTop; 0 U4 h( A# Y4 Q& M) B
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
2 V/ k. O* n' n6 I' igbCanClose := False; ( F! S/ A/ ^# @
Timer1.Interval := 1000;
' r2 a3 e2 G- a/ r [- C& uTimer1.Enabled := True;
- d' i8 X* s) w" u6 Z5 kend; 4 H7 J; X9 e) |; W3 r8 h4 x; x
. g# Z6 B1 m0 M
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); 4 {" f% ^+ t8 p1 y4 ?6 {' Z
begin
! m/ ~0 ~4 ]6 M1 c: PCanClose := gbCanClose;
- m9 c9 {; c4 Y& kif not CanClose then
) A9 l: b; }) qbegin 4 }& F! U ^6 T% i O
Hide;
$ }# W1 \0 u/ b% U1 W0 }" Hend;
9 I, w* b* T( ?, Mend; ) U4 k1 E8 K- q0 b r* H5 \
8 V+ D; a- f, N) ]0 H' K
procedure TFrmMain.FormDestroy(Sender: TObject); 7 U# z$ Z5 A0 W$ U$ @' c% N: x
begin
2 ` G/ t9 h/ Y3 t" Y& C/ k: ETimer1.Enabled := False;
) i8 {8 l, _1 v& gDelIconFromTray;
! S+ K! t' b. Wend; ! d% \4 f3 W- n: E$ O8 `4 ~( P
+ J7 B7 J9 }2 \8 j- l/ V
procedure TFrmMain.AddIconToTray;
; y3 C/ t! p2 k7 m" w+ ?0 Kbegin 8 A D& n# q3 E! T8 \1 p' f ?
ZeroMemory(@IconData, SizeOf(TNotifyIconData));
i, `" u8 a# U' [IconData.cbSize := SizeOf(TNotifyIconData);
+ r+ ^. T) M' x* F" c7 ~& gIconData.Wnd := Handle; / b+ o6 R; w( e
IconData.uID := 1; : j4 [0 d% g; G; l- e
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP;
2 y, t6 C7 ^6 p2 UIconData.uCallbackMessage := WM_TrayIcon; # @/ L3 N- t% p7 d
IconData.hIcon := Application.Icon.Handle;
2 ^ N8 C1 b j2 t8 ^1 R0 iIconData.szTip := 'Delphi服务演示程序';
( |3 p. |( R: g( aShell_NotifyIcon(NIM_ADD, @IconData);
: r/ W( O/ k* }& gend;
% ^; D6 D: Y$ P0 o8 s3 M: `# W% z3 H. h7 R' b2 `( L
procedure TFrmMain.DelIconFromTray; . m C' {6 A' B3 ^
begin
( v1 f6 n& B1 r2 C$ _% m. @5 sShell_NotifyIcon(NIM_DELETE, @IconData);
/ c5 }1 Z. G5 G4 q0 n' zend;
- N" c* x3 }+ g5 ^6 |
) F6 A m$ {3 }5 ?' q3 e9 R; Yprocedure TFrmMain.SysButtonMsg(var Msg: TMessage); - p3 f; E. c# n: ^6 L* H# n5 E3 v
begin
8 s4 X6 o# e$ G4 ^" Oif (Msg.wParam = SC_CLOSE) or ' v$ v+ v. C1 G8 J: b+ ?/ R
(Msg.wParam = SC_MINIMIZE) then Hide 1 J W5 M) X% S9 X
else inherited; // 执行默认动作 \3 j. E- _. L* p; L7 C
end;
. ]8 a# q- z7 P
# g6 j, w8 h) y, D, w3 Qprocedure TFrmMain.TrayIconMessage(var Msg: TMessage); , l4 ?) \2 F) B7 R5 U- y
begin ' y9 ?& t6 S3 t" h. |
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); 5 ]4 K5 F1 I+ G: T
end; : O0 X' X4 |2 H8 L7 `& w
9 ]3 `1 A2 ^1 ]
procedure TFrmMain.Timer1Timer(Sender: TObject);
' O& w* J5 e/ O( X9 N0 |begin 9 Y/ d# {1 Y4 Y
AddIconToTray;
) `$ T+ h7 p4 i- h8 I( S3 \) Tend; # u# l; e! K) D d
7 a7 l! B) i3 r# \procedure SendHokKey;stdcall;
( S( f1 F5 T v$ N! v& yvar
% q. h+ D& f" yHDesk_WL: HDESK;
; f* ?9 @8 t* ~begin ; u* i6 g# J0 u
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
0 ?% x* h% D7 Y8 R) [6 I7 ?if (HDesk_WL <> 0) then " p6 P# u' S4 `$ k/ H' c
if (SetThreadDesktop (HDesk_WL) = True) then . A: ^, P0 r. f* i7 h9 N5 J
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
. P' ^' d7 A0 U7 X$ ~9 h% Yend; % P( k2 J1 O* u+ t. E1 @4 q2 [
0 _ Z5 B: n7 ^; g8 P6 A/ o
procedure TFrmMain.Button1Click(Sender: TObject);
' {9 X6 C/ }1 h# M9 M- a! Gvar 0 W+ l4 {9 Z" w& G) Q! j a" ?
dwThreadID : DWORD; x4 \& Q5 Y8 Y. c
begin , `/ h( o& G. q- j
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
! \& N4 J& Z8 W+ Bend; # b/ M9 F$ U+ K
6 \) B0 t+ Z8 ~2 V0 d. G# y4 Wend. 9 L# ^0 z! ~) j( S2 y/ ]% x
' U: H3 C( ~6 [; |2 O2 [
/ \; P' c" V/ f1 H补充: ) f% J+ G- q5 b5 H
(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.
* ~8 F3 A. I: H; |% i) p
7 Z7 c; z# f0 Y7 G. N6 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. 2 B! j4 u# e( S; I. v
- m. z: N; s! e$ Q(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:
3 v2 }% U1 T L2 e- ^3 yunit ServiceDesktop;
4 W9 f0 [5 Y0 Y ~3 s7 M9 Y8 f! j. @4 m2 _; C
interface
; X0 W5 t/ O1 o! y) F
) H+ e. I9 }) N: x4 Zfunction InitServiceDesktop: boolean; 8 F8 V! o" L% ]
procedure DoneServiceDeskTop;
& @- v' M& ?) B6 Z2 B& e
: r l4 Z! Z$ Q% G: o( Z/ ^implementation # g$ a1 `( w- x4 G* N
' |$ Y7 }9 N# [1 Z
uses Windows, SysUtils;
8 m, p' P9 X% v8 h2 w/ I
( v/ i) p: S6 x! h Aconst 2 _( h7 X$ g0 B9 x' p1 [+ `9 t
DefaultWindowStation = 'WinSta0'; % ?, X$ E9 P, `+ a/ b* e& r. I
DefaultDesktop = 'Default'; 4 o3 y; P, z; F- l6 i# i
var : A4 v. C; S! V3 \! {$ _$ m2 t
hwinstaSave: HWINSTA; , B: ]% H5 r& b. J( s1 h4 x
hdeskSave: HDESK;
% k0 q0 h( _3 {- ` ^' D3 p$ x4 |hwinstaUser: HWINSTA;
# z- d3 o0 F$ U' d; J5 ~7 nhdeskUser: HDESK; 1 X* `8 Q. _) N8 C9 ?/ e) d
function InitServiceDesktop: boolean; 7 E+ d! I' U7 a5 ~( Y* t; X
var
! ]5 m& k" Y8 C8 ^9 }, {, v5 LdwThreadId: DWORD; 7 q, J+ O* |4 t
begin ' P, j( p b+ J
dwThreadId := GetCurrentThreadID;
0 M/ ]9 y; p# {8 w// Ensure connection to service window station and desktop, and 9 q8 c/ s" r0 b/ }: F
// save their handles.
- O& H: |/ |1 C! Y7 S6 xhwinstaSave := GetProcessWindowStation;
) d9 J" z1 P' G3 x. c. EhdeskSave := GetThreadDesktop(dwThreadId); 7 u7 l9 m3 `' [9 S2 h1 [/ E8 @# D
$ h$ r$ @( n# [" y4 @9 m& A
- v0 d3 {" N% D# i( i" z
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
' l' Q2 q* [3 P2 d( K+ Z6 x7 {if hwinstaUser = 0 then $ J* S, H) |. K# |! ^
begin
& {+ c( O& e7 v. c& h. AOutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); ' s9 o/ I: {8 ?3 T
Result := false;
5 w6 c! X; ~% vexit; / h* m% M& g# z0 A
end;
& [2 R0 `. r; a1 L7 {( ~
; f, u3 a& D4 @- T( mif not SetProcessWindowStation(hwinstaUser) then : L' b! d+ E5 X
begin
9 y2 D( m- K. uOutputDebugString('SetProcessWindowStation failed'); " U2 n$ i$ p) k8 E8 k1 B
Result := false;
9 V% k; |/ C0 E3 ]" x0 v. Jexit;
7 v: n% f; o' k: {: ~) `& Mend; " U7 u4 I2 ]2 L0 V: e
2 ~$ }' L# c( ^7 k+ y/ u
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); : P3 V8 O! N7 B1 c8 X, d
if hdeskUser = 0 then
* o) x. K [5 Q. Cbegin
; a6 o2 g, C: t* XOutputDebugString('OpenDesktop failed'); 4 P$ f( i# a4 S
SetProcessWindowStation(hwinstaSave); 3 i4 Z; m! y' I+ E! X8 o
CloseWindowStation(hwinstaUser); 1 M7 Y4 e: x% u8 Z9 E# [
Result := false;
- M$ U* M. G& i+ o2 d$ U8 t, h; Qexit; 5 J a" w9 A* h2 P7 L/ S
end; $ B; ]* z! u4 f V! j
Result := SetThreadDesktop(hdeskUser);
0 B) n3 s; K) `$ H/ {2 ]if not Result then
; U9 W9 j+ E" T0 X% q( POutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
/ O V) H# j0 u9 _) @1 I& Lend;
/ V2 l" y7 i; N; ^/ R% k, m6 T
8 ]+ o7 B0 t9 o, X$ ?0 {procedure DoneServiceDeskTop; : M4 {+ }! o/ v2 ?; J
begin 0 [* H" I* e' l! e
// Restore window station and desktop. 7 W% }6 D* i0 f
SetThreadDesktop(hdeskSave);
3 ^5 Z; k* k) c) Q( _SetProcessWindowStation(hwinstaSave);
* \6 k( i1 C3 S) [6 F" @0 T+ jif hwinstaUser <> 0 then
# T) g% F: l6 ^CloseWindowStation(hwinstaUser);
2 c, r. n" L3 T% J0 u0 yif hdeskUser <> 0 then , h; }$ k5 T% U2 K
CloseDesktop(hdeskUser); ! s( _! m) U# i" X" W
end; 9 s2 L" @9 C E0 Z& K3 i
" P3 g$ ~/ @6 h
initialization
8 V$ }6 F% a* T8 L6 ?InitServiceDesktop; 2 [! I x1 K. i6 ]3 k
finalization ! @ N$ K' f- Y7 r( j/ S* S
DoneServiceDesktop; 0 Z' |- w! _+ Z5 f3 o
end.
4 P# N0 {8 |& C5 l1 ^8 K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: 4 {; R1 H& m2 r" A6 d, ^. H2 [
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unit WinSvcEx;
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/ C* _0 V) L0 _6 ?) W0 cinterface
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+ o4 x$ [" K6 O U# Tuses Windows, WinSvc;
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const 5 v* @9 j2 s+ R7 ]+ ~$ `8 Q
// 4 o7 F% t/ y8 e$ }0 G1 C
// Service config info levels & Q. }# Q* v6 Z5 W* d
//
) M8 N+ S7 f( U+ O( M" YSERVICE_CONFIG_DESCRIPTION = 1;
3 h! b, T+ A. E7 d. ISERVICE_CONFIG_FAILURE_ACTIONS = 2; |
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