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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. ; \8 J1 W S. r3 n
(2)具有SYSTEM特权.所以你在进程管理器里面是无法结束它的. - r% a% Q; f- E8 P# w; k% y
; E5 i* |; f. M 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. $ u' K1 Y! p$ G
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:
7 x# N( u5 |' d6 L, \# p0 c- Q# S: D1 I$ K* h& ~3 ~
(1)DisplayName:服务的显示名称
6 S# S7 h& ?& X7 o) W (2)Name:服务名称. & j' E/ C2 @, X: _+ p; k; t
7 M" m3 g1 s. D) u9 I1 y 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.
0 t* Y4 d) T, n$ W- a) q# j& G5 H" Y) I! e+ e/ e1 d
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.
7 t9 v4 ]3 K7 U z9 [% s5 K
' M! y. N6 y: d; A& W- U) ~ 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. ) c8 A i% N8 y$ t
* G6 `8 a* _ T, 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:
: _+ k+ I9 ?7 c3 x: }; N e& E5 C, l* g+ c5 h2 o
$ L# O! \( p0 n/ f! U
unit Unit_Main; # ?/ L, G9 W; y+ {4 {8 z
- h$ q9 l2 V8 I+ `
interface ! V2 g4 H" q8 |6 L
+ a" I4 j) x' L
uses 3 d Q6 f) Z7 n
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
9 f* ]( Z/ x! [! I/ ~! C+ G @: s9 |# G/ o: s$ I2 S
type
& P1 U' Y' H( d6 b8 dTDelphiService = class(TService) & \. ^0 p0 j3 _7 F1 }3 b. E
procedure ServiceContinue(Sender: TService; var Continued: Boolean); N. a. _5 u3 M% L8 ?0 y
procedure ServiceExecute(Sender: TService);
' H& F- X7 ~+ ^procedure ServicePause(Sender: TService; var Paused: Boolean);
. z1 }' m& Y3 `$ u, ^3 F- _procedure ServiceShutdown(Sender: TService); ( Z' T0 F R" a9 O( Q! v% ^8 r4 s
procedure ServiceStart(Sender: TService; var Started: Boolean);
& q0 a- H8 _/ r6 b# @. ?# @* ^procedure ServiceStop(Sender: TService; var Stopped: Boolean);
/ U# Z, h+ u. dprivate 9 f) h( ?6 C$ k) o* R# j
{ Private declarations }
4 s3 D" h3 X: m0 Tpublic : H0 q, g8 V# w
function GetServiceController: TServiceController; override;
% v5 [. x9 Z$ l- Z( D{ Public declarations } 7 L5 T% O4 w# t0 h- [9 B# ]0 N" c
end;
% k$ O5 V* D4 N8 G3 N# E+ _1 V6 q
var
8 e* [; p) k1 f: e, GDelphiService: TDelphiService; , Q& [2 e6 N% `0 N" |
FrmMain: TFrmMain;
. A: Z# Q& F( K% K) Q E1 Mimplementation ' U" N0 h& `# R2 Q- |$ V9 F
6 m2 P7 j$ O( U3 ]2 M
{$R *.DFM}
6 e# K% I2 p" O5 u
' v# V1 F% ?5 r6 z' Vprocedure ServiceController(CtrlCode: DWord); stdcall; - n9 y: x$ i0 H! p( ^
begin
B* ~& e2 L3 y& K' W4 DDelphiService.Controller(CtrlCode); 5 c5 Y% h. ], E% F& z
end;
' e$ ~/ k0 N/ R- V! l' T# ?# c
3 B* [6 U" Z& N" afunction TDelphiService.GetServiceController: TServiceController; " f1 T* n2 ?+ m* S% ]" C3 w+ n0 g0 H3 A
begin + ~( g9 @" N; }: I0 G8 U& u/ Q; K
Result := ServiceController;
+ O* x, \1 e5 N! w0 M y# U3 Fend; ; ]2 \; L( A+ F! N6 m
1 T2 ?* g. F2 a3 Q; y- v1 R
procedure TDelphiService.ServiceContinue(Sender: TService;
5 P) W5 n$ E" l2 Gvar Continued: Boolean); % @% g8 {8 |+ F0 [& s" g
begin d( h8 l. f; s5 O
while not Terminated do
( Y7 K( Y$ M9 V2 S! Y ]. T( _begin - O c3 D! q" C$ Y3 M
Sleep(10); ! Q8 t8 l5 u" s! l' }- J
ServiceThread.ProcessRequests(False);
$ P, {1 h) Q- Kend; ! f0 ?2 }# C. T! ^7 M% p
end; ! W8 E9 N5 d: N0 a# n7 ^4 L
, ~' o6 K3 b9 e$ h: Q- `4 ]6 P
procedure TDelphiService.ServiceExecute(Sender: TService); / E9 Y% w" U1 J& S$ Z/ U( D* Y8 y
begin
1 W$ P. A% j2 ^# ^2 j4 `& hwhile not Terminated do 0 W- l3 C( M+ U1 ], ~3 q3 u
begin % k2 Q' R" K$ ^; q- i4 \
Sleep(10);
/ E- d2 n$ L4 [7 C H, p0 SServiceThread.ProcessRequests(False); , c, t* N, T& ^( i; R6 O
end;
9 _; n- L. @- U9 Gend;
$ Y* u+ {1 v5 M G) F6 {1 R4 L& L1 r: r6 I
procedure TDelphiService.ServicePause(Sender: TService;
0 ^8 ~5 z5 ~8 |var Paused: Boolean);
" m, }7 _/ z( b V8 gbegin
" x1 X0 Y& r0 GPaused := True;
Z2 a( f4 r+ fend;
' q5 w7 Y5 X4 y, o" @
# D. j' i" z4 e! j5 _8 Sprocedure TDelphiService.ServiceShutdown(Sender: TService); . k5 z- I/ X5 ?1 d! M" d
begin
5 f9 ], |! {7 e3 V6 wgbCanClose := true;
3 t( ?( K% Q" HFrmMain.Free;
6 E3 I- D3 I+ ]) WStatus := csStopped;
# v4 {9 F5 L& X; |+ \ReportStatus();
: I; H! G" ?( ~$ b9 ~+ E9 O+ Y( qend; 2 L/ c4 O2 J2 t7 a
* F. G, }1 k$ R. k7 p
procedure TDelphiService.ServiceStart(Sender: TService;
( ]# t$ C9 M4 W: I; Uvar Started: Boolean); . t: h, A* F; p. u
begin
7 \$ l, S/ o/ z# P% u1 w3 GStarted := True; - C. e. r) a! C+ b" _
Svcmgr.Application.CreateForm(TFrmMain, FrmMain);
/ n6 h8 D# N3 `gbCanClose := False;
# t& l3 e% T9 S: W5 u; EFrmMain.Hide; . }8 P$ c" z9 O% x/ t2 m
end; ) S( Q+ e+ _, a: R7 m' ]5 u9 |
/ d& b* ^. N; S& v
procedure TDelphiService.ServiceStop(Sender: TService; 7 d* I0 s2 C# U% d2 J& Y
var Stopped: Boolean); : L6 h# u8 j \' Y
begin
7 ?9 g& R2 T4 \" \4 gStopped := True; 7 Q, h2 \( }2 n% j4 X% e
gbCanClose := True;
! U3 V4 ]$ w0 G4 oFrmMain.Free;
: K" x w2 ~8 ^7 `! Yend;
I7 d% U1 @! B; q& {) {& r! x/ D- j/ q
end. ( _. y1 X% V3 ]
$ z( }, t6 J) w3 r
5 D/ ?$ w" ~, g( z# K主窗口单元如下:
1 ^/ c/ G1 [; c# H2 p& v- R- x# I- q
unit Unit_FrmMain; : Z0 J( x3 u) c7 `% w) l( [4 t
( b! q' n0 ? @* I9 `; P9 T% j! e3 winterface $ j8 l1 W9 E$ S
( s, z; b* x5 @9 A/ E: D
uses
+ y3 V" l' Y9 U& j) f4 M' \Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms, 2 `) N! g+ P# P% }* [
Dialogs, ExtCtrls, StdCtrls; 6 ~) }- Q) z+ y7 A+ j; j- s# J
5 k, s( }7 z, @6 Kconst
7 w2 T; N5 n; p) C2 K% o) yWM_TrayIcon = WM_USER + 1234; $ g) i- g9 q6 B% s$ ^% T7 Y. T
type 3 v' j- Z D& K9 E! z
TFrmMain = class(TForm)
4 ^6 P5 b# b c0 u" @4 Y" lTimer1: TTimer; 2 S/ X5 r, v6 U2 k# @0 b
Button1: TButton; 1 U$ v. x8 r3 p: M8 M) F
procedure FormCreate(Sender: TObject); . u4 Z: @( O) d6 w. V
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); 1 @4 @) H& ~3 W# @/ R; A
procedure FormDestroy(Sender: TObject); 5 R* p2 |7 F5 n+ Y; y
procedure Timer1Timer(Sender: TObject);
3 [1 Z7 T# n! {% j4 M9 P, W+ K. Cprocedure Button1Click(Sender: TObject); * S& a5 q. c, q: B; X
private 4 i0 Q+ v; Z/ ?; E2 M; k' m
{ Private declarations }
7 Z9 {9 C% l9 ?$ A- g% ZIconData: TNotifyIconData; 0 J$ M8 ]* z# m" t; C2 c
procedure AddIconToTray; 5 R8 _+ S l& H
procedure DelIconFromTray;
4 m8 S6 W& t1 @4 |& ?3 Y) `procedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon; ! e4 ^; \! [8 t( _( f
procedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; + h: F1 ]1 Y7 `
public
; j4 S% J3 j! e: _$ N6 d( }4 Y{ Public declarations }
% l* ^1 c6 O6 B( p1 r4 {7 U& ~+ send; $ I; l) f4 q" k! g1 t: V
( G9 J2 x) W9 p& Rvar
- \* Y+ @2 x0 G" h) M; eFrmMain: TFrmMain; & }+ q. a' V+ [
gbCanClose: Boolean; 9 w& L' y8 n0 h
implementation : r* G* r+ x! C5 G2 q+ ^
8 [7 ]% z/ R* @4 C! m! O. V{$R *.dfm}
9 k) U$ R$ z0 H1 O8 J: S- j
: u$ g4 Q4 ^. N! |" D. A3 C& o4 hprocedure TFrmMain.FormCreate(Sender: TObject);
% S3 D. H7 S; N. d s, Y# V( _; n2 K' Ebegin / u* m- T5 i$ f- ^/ `1 A
FormStyle := fsStayOnTop;
/ j8 x) a' {# f# b( a, w& @, HSetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW); & H2 a, L' S1 v
gbCanClose := False;
! V2 s! [8 q W( R& |Timer1.Interval := 1000;
) W8 ?1 {* H7 r7 BTimer1.Enabled := True; 6 R9 [( h0 x% U4 {
end; ! i' H. _$ V8 b5 u0 ?. Q
+ i. v% ?1 n; a
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean); : Q: L. }, g" n3 U( u
begin
( w: B! c5 p7 b( t& y/ H! d! eCanClose := gbCanClose;
3 P' n: \4 m3 b0 kif not CanClose then
7 ?! R) m5 i% a( wbegin & V+ H3 ]9 }) g X% T
Hide;
' Y4 { _- B5 r2 h3 v3 J9 fend; 3 w5 Q/ L. `/ J' y% Q2 l( Q
end; 5 {$ k* J4 p: z; N$ g* [' S
' f& q. C# O; `' q9 t
procedure TFrmMain.FormDestroy(Sender: TObject);
+ `5 G' ?8 S6 l6 J4 S8 z8 f* n( `begin
) H* y8 i* r6 \$ e% q" e& I* }Timer1.Enabled := False; + E. n8 x7 A/ W$ W% p3 f* a
DelIconFromTray;
4 V4 C! \; i* r* Y4 A2 S9 Gend;
$ ~# ^" w. M% z- y, O. \) i+ {
procedure TFrmMain.AddIconToTray;
# P& w% U( T, O( ~6 D+ A/ l% hbegin
. @+ T- H" `$ Q8 B" o0 Y. cZeroMemory(@IconData, SizeOf(TNotifyIconData));
; X- a1 C: e0 H m hIconData.cbSize := SizeOf(TNotifyIconData); 1 S1 H5 ]' ]( C- \ q! K- g# i. h$ H
IconData.Wnd := Handle; 2 b& d( m( }& ^8 h, l2 n
IconData.uID := 1; 3 N" w7 x. j, D$ J
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; 7 H" g! p3 B( C; H1 Z0 v3 z" |+ `
IconData.uCallbackMessage := WM_TrayIcon;
) J1 E% d* Z$ o) c* p- sIconData.hIcon := Application.Icon.Handle;
+ m0 V E4 x( Z. WIconData.szTip := 'Delphi服务演示程序';
! s* N, {+ ~+ j+ S# P9 g) c7 B4 hShell_NotifyIcon(NIM_ADD, @IconData);
4 n$ k! q* }% _3 h4 o, M7 K7 eend; - M- P/ [ c! h
0 q7 q: N7 v) Q4 x6 u) n L% r- d
procedure TFrmMain.DelIconFromTray; : ?" T5 `- e% ~+ g- h
begin
/ N2 y2 ^* O% N- oShell_NotifyIcon(NIM_DELETE, @IconData);
: ^0 g6 T& [$ Eend; 0 x0 N- B( p5 V! i1 G+ |
5 j0 T2 w6 X- @procedure TFrmMain.SysButtonMsg(var Msg: TMessage); 7 N6 U3 J5 s( |8 d+ N8 Q
begin
$ p' m0 z, t0 L3 y- tif (Msg.wParam = SC_CLOSE) or % t; N& {! j4 @) t
(Msg.wParam = SC_MINIMIZE) then Hide 9 P. y; v8 I/ N% M" }# N
else inherited; // 执行默认动作
6 V: s% p$ N6 G0 [end; . v) @) ?( \* o0 N4 ?0 P
G7 f. u1 e$ E- M$ d; z' o
procedure TFrmMain.TrayIconMessage(var Msg: TMessage);
) L2 d: ^: B9 N: O: F5 L4 |begin . i- Q0 l/ y, a" O7 |* N
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show(); % i4 ~3 b6 N( f$ T. S
end;
* ~& N1 Z7 D. H3 H; {' P. P
0 O3 \$ [* b) i m9 u7 v, {procedure TFrmMain.Timer1Timer(Sender: TObject);
( C- U5 Y. S p& c7 ybegin
' E' e, _& M/ v8 d# J* S, WAddIconToTray; 6 Q6 k4 V6 l: Y) o+ {
end; , w) D0 g2 Z x3 f6 X( {
) g7 z$ m" y v
procedure SendHokKey;stdcall;
. A# y% ], q8 L- Z. ^var
7 E) y1 R$ I ZHDesk_WL: HDESK; " g8 ~- k* c1 L5 C
begin
$ w, G% ? [" e; ^8 w- oHDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
* V4 ~2 t' f( b4 e% Pif (HDesk_WL <> 0) then
{* ?# o: \9 I9 A; lif (SetThreadDesktop (HDesk_WL) = True) then
; U; x& f0 H8 d' R) O% n: l% KPostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE));
& M; v9 }$ S: X; aend; 2 [' N3 O* [( K% k3 c7 l
0 R* u6 G9 M, Q Sprocedure TFrmMain.Button1Click(Sender: TObject);
: N4 V% t: y7 e3 A7 b* z7 Avar
v8 D/ x. @9 x7 adwThreadID : DWORD; : A9 Z7 u: M' v- d4 v+ x7 n' d
begin
/ U3 m% _( {( x4 e2 J9 yCreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID); 6 d5 c/ ^9 [1 p8 q$ J9 Q2 X4 d
end;
+ o2 B! D, P! A- J! L
% z( q e/ g& R' C* l" y+ { zend. - Y5 F$ s. E3 [4 l5 F
, C! a" q0 t+ b( G: N! w+ _5 b6 f( {3 g. ~7 @
补充: " ?& \, u* _8 w. B( K' 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. ; k. R% Z+ L" e4 `; k8 q
, G- N, t* w& j( I7 u5 F8 `(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.
4 d- y( _+ P$ y# h' V, K8 ~4 w/ z
(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:
- [+ b! E+ E) E2 A. c) @; Q& X5 junit ServiceDesktop;
/ h+ i1 _+ j+ S) S" B$ l) P. x( Y% Y4 n0 {9 H- x8 I
interface % E* J8 N- x; u% ~
" y1 j8 h- f: Z' q4 f/ ^function InitServiceDesktop: boolean;
, H( b: C& r5 `8 p0 T7 q: kprocedure DoneServiceDeskTop; ; [) F+ s0 H* Z/ u
# ]0 [4 k$ {4 b0 f! M! G) q$ Ximplementation
5 j: d% H- m; K7 n4 F6 M# v
7 `) j* ?, G2 W1 Y8 O* u5 R; Quses Windows, SysUtils;
1 C5 S5 F. o0 n9 S- @! g; Z
6 Q* h: R0 g3 V8 econst / F, n7 M2 Q2 C# t8 [
DefaultWindowStation = 'WinSta0'; 6 y2 |4 w7 ~" N8 r# j
DefaultDesktop = 'Default';
( U: u; q( x3 z T% Svar # W; d* `+ P" a/ j
hwinstaSave: HWINSTA;
( S* @ s( S6 I' A! q. ahdeskSave: HDESK;
" L; f" `) P- I9 W ]hwinstaUser: HWINSTA;
! S4 s9 T# s4 V% M0 ~8 whdeskUser: HDESK;
! h( x& v/ Y. `- |& t" E% ?$ Ufunction InitServiceDesktop: boolean;
4 ` A; Y8 @% Z7 uvar
- t: B& b5 A |9 s5 U" Q4 ~dwThreadId: DWORD;
; p! F1 E) l1 i4 u' Y7 t6 Zbegin
2 j% u. ~1 h4 u8 i& Q9 p/ L3 idwThreadId := GetCurrentThreadID;
8 B* u0 E" f9 P// Ensure connection to service window station and desktop, and * U: }& _! H/ Z' M1 `5 K! l: O8 {, M
// save their handles. 0 i# K; N/ V1 g% r& h& k
hwinstaSave := GetProcessWindowStation; 0 L/ l, ~; l' X
hdeskSave := GetThreadDesktop(dwThreadId);
, l' r& e& {/ e7 E1 U
5 L w( n' F+ t7 F6 ]/ t5 \5 E3 I5 e4 l( J
hwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED); v( n6 q9 u! E3 \. S
if hwinstaUser = 0 then 6 J+ H @- X3 D' K6 p, U
begin & L9 z' E& w; a+ h
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError)));
$ _% o" p# e% T$ m* w+ R# ^: @Result := false; ' O' B1 W) I8 f: {& l
exit; ' n3 }: h" L6 q2 P0 Q1 K4 N
end; 1 u$ F2 ]# \+ P/ N) V7 Q: L+ g( q
( _. N1 w1 ]4 O* @! b6 Y: g' k
if not SetProcessWindowStation(hwinstaUser) then 7 r {( ^2 f& X2 z8 r6 @% Y* D
begin
/ J# X5 K# Z" `+ @5 R' ^OutputDebugString('SetProcessWindowStation failed');
5 I% X2 E O6 g% EResult := false;
8 a$ O+ a" e7 ^. x5 e" t2 s hexit;
) O- m: l! v9 k' R0 n* {, R9 zend; . t) S5 B# }3 M, f
' s/ S% S( Z) u# L- ^
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED);
7 s) M9 y: k$ ?* R! X8 D- Oif hdeskUser = 0 then " q% h3 x8 r/ h4 q& N
begin 3 z% N3 t% l5 O6 U7 t0 |5 O
OutputDebugString('OpenDesktop failed');
: Z% Z, Y: a- PSetProcessWindowStation(hwinstaSave); 9 T) _* ^9 p2 N3 n% m/ a8 {
CloseWindowStation(hwinstaUser); 0 P6 d* v1 i; i3 n2 C+ t
Result := false;
' H% W; s4 y. M3 y- Q# c1 }9 W) y; mexit; . s" L* w9 P3 E, b% p4 i6 K8 P, a
end;
. R4 V, G! V; vResult := SetThreadDesktop(hdeskUser);
5 B ?. t4 [+ [$ x4 W( x. P' I) iif not Result then . F& ~" Q! F, N" e1 M& K3 {
OutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError)));
0 I6 i! @/ ~$ s, x; {. hend; $ p8 n- _" D, l* S5 O
7 N$ `. g4 E' ?. V& S1 h
procedure DoneServiceDeskTop;
- g9 I3 v( y1 ~: a, C: Jbegin 9 D5 {: o* u" c, \" [; I: {: H
// Restore window station and desktop. ! j. W! y$ E0 o! y( O$ s; B6 V
SetThreadDesktop(hdeskSave);
; ~, M8 y) D: W& ISetProcessWindowStation(hwinstaSave); * i# K0 T$ T8 Y$ l0 p
if hwinstaUser <> 0 then . U4 A5 [( C: R/ r" X; c- y1 A2 K; l
CloseWindowStation(hwinstaUser); 3 u' ^& Z' B( T
if hdeskUser <> 0 then ( ~5 m7 Y& X3 ` ]9 V" d
CloseDesktop(hdeskUser);
7 p g3 a2 C; T- E7 iend; 7 a/ ? j' u Z) r
8 I6 Q/ }$ o. P+ ninitialization
8 Z- `! p; X9 r/ y, {6 d4 CInitServiceDesktop; % E: R/ B7 ~2 \6 _. J( ~
finalization / P: E- p; \" `3 g4 C! b
DoneServiceDesktop; 0 x5 ]3 s1 u& C, N) P
end. # l7 k! o4 @* E% g0 r
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip % n$ c: }; ^4 h+ J4 h. ]' J8 I
# @1 r4 i _2 W, l4 L7 m$ Y4 f(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: # x( n5 v3 N, O3 p3 @7 A8 A8 Z
0 R. r) L/ I, F. |) t. y6 Vunit WinSvcEx;
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uses Windows, WinSvc;
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const / Y9 q2 T1 e3 w6 p8 k& K
//
2 o+ C" F! D4 U' P) g/ z6 ^// Service config info levels
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SERVICE_CONFIG_DESCRIPTION = 1; 1 Y2 g1 n& t' B
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
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