- 在线时间
- 0 小时
- 最后登录
- 2007-9-23
- 注册时间
- 2004-9-10
- 听众数
- 3
- 收听数
- 0
- 能力
- 0 分
- 体力
- 9975 点
- 威望
- 7 点
- 阅读权限
- 150
- 积分
- 4048
- 相册
- 0
- 日志
- 0
- 记录
- 0
- 帖子
- 1893
- 主题
- 823
- 精华
- 2
- 分享
- 0
- 好友
- 0

我的地盘我做主
该用户从未签到
 |
(1)不用登陆进系统即可运行. ! H% l6 P, G+ y+ r& L+ R5 [' U
(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 T# N) s- j% b, }+ p' D5 g3 o: L* S
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. 7 A* K! e+ z: F# e4 \1 u
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: 5 p2 E0 ^( }. S. k; k6 N+ O
* L1 S* v2 x- E1 |' W3 p0 x. o w
(1)DisplayName:服务的显示名称
* J9 {% A# p* O3 ~ (2)Name:服务名称.
, B) Z# w: [4 V6 C0 n* C+ j- ?& y. x/ W
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. 5 ~' e0 @1 A& J( r3 _, l" _; N% i! v/ l
( M9 C' Z8 i/ N) @
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.
1 @2 U! \5 E! m f3 }$ ~# G
& X! e# i7 V% b- D P 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. 8 h( L- L2 {/ w5 d6 C0 x( G
" B% {$ Z1 l+ I 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:
. ]( X, z0 s2 Q4 z$ W( x3 J! ]$ G) O) U8 h, s
* @% M x0 d" [ P. \# H: d
unit Unit_Main; ^, d' x9 |- ]
9 F# \) h1 P) l: g, C! P# `interface
2 J) }7 E+ [" v% c- x
$ n1 n) r4 U% T2 t5 cuses 3 r0 ~' A% a2 M# `7 F
Windows, Messages, SysUtils, Classes, Graphics, Controls, SvcMgr, Dialogs, Unit_FrmMain;
* m" E& L2 e% E, X. S) I& N1 ~; j$ H- l+ x R' Y. P b1 K
type
8 e9 @5 Y! X0 G2 ^# W& y' ?7 u) GTDelphiService = class(TService)
' b5 |+ k9 L$ Q% K7 S2 Qprocedure ServiceContinue(Sender: TService; var Continued: Boolean);
* c* S7 k' |. O6 f- cprocedure ServiceExecute(Sender: TService);
; q% j( ?* P/ v- Qprocedure ServicePause(Sender: TService; var Paused: Boolean); 3 g+ n5 n( V% h) ]5 o. B
procedure ServiceShutdown(Sender: TService);
2 N. s( J6 M- R A& w' T( }& nprocedure ServiceStart(Sender: TService; var Started: Boolean); . |2 X8 d5 p0 ^6 O p
procedure ServiceStop(Sender: TService; var Stopped: Boolean);
% q' g+ ]& }* d( B7 aprivate
# s) Q3 _+ L6 l9 Z{ Private declarations } 1 {# W# g! r7 u5 |7 d
public 5 `. x9 R u; O( E1 Z
function GetServiceController: TServiceController; override; 9 ]* _& G4 o' D7 _9 p" C. O# q
{ Public declarations } 9 p) m! }4 h: e" K5 f. j7 q
end; 7 l8 E4 R* c% A& ^& }" W
! r, J6 R0 U1 h+ w/ \, S2 q/ N" s
var
2 D& B/ I4 K. H! a1 D9 c( DDelphiService: TDelphiService;
& ?# f# V3 a( e" rFrmMain: TFrmMain;
8 H/ T( f) z' Simplementation
8 I9 e* j, L/ g
6 x. I+ L' e' @9 f, B/ X) I{$R *.DFM}
/ B; Z) G1 q- i7 e; V
4 m1 F) ]" |" x3 i0 v8 S1 Sprocedure ServiceController(CtrlCode: DWord); stdcall; 3 }* q' E L% k* i+ V2 d* A% P* U
begin - s( p% i& \2 [: k9 I# M
DelphiService.Controller(CtrlCode);
/ \8 p6 c9 ~- Q! n- yend; / Y, a; d; y3 [: a3 M: v
7 W% J! |3 D; F7 ^5 h* P
function TDelphiService.GetServiceController: TServiceController;
/ W3 K# c9 R5 r n6 B* x8 d7 Mbegin 1 P6 p G, k/ v& l) J6 x
Result := ServiceController; O$ I9 p- I) C
end; 9 I1 Q! F' N+ u
" Y; P( A. B' u2 r6 cprocedure TDelphiService.ServiceContinue(Sender: TService; 2 t( U: c5 {( k) c. q- J/ j
var Continued: Boolean);
& G! O, l+ v! L: D" b9 S( Cbegin ( m6 \9 U. i+ {5 S
while not Terminated do 7 R& I# e$ J% d) o0 q& B
begin , \ z. B3 X0 S* e: e: j3 u
Sleep(10); 0 C6 z. c4 k' B d9 k; h9 \
ServiceThread.ProcessRequests(False);
# }9 d5 Y( f. K2 V% `; t8 qend; w# F9 I! L8 ~& @% {
end;
4 B" {+ F; \9 v( r5 W6 {7 F. L& Y( P. C$ s& s5 w
procedure TDelphiService.ServiceExecute(Sender: TService);
; B' c: b1 o& a% O! V: A' q0 `2 y( h. Obegin ; f( S+ P V. E* k
while not Terminated do
7 y E; L: G9 mbegin
/ V( c8 B1 M& i& u9 S; j1 l$ USleep(10);
1 D- _: ]$ J0 `7 b8 f. U$ vServiceThread.ProcessRequests(False); 8 d9 j1 u) ?$ O: m) i
end;
+ M) [. U2 `3 N; n" F" c, Zend;
U* D5 `8 T/ |. f9 j$ A
: k: U7 R' {- D; k4 x, L" pprocedure TDelphiService.ServicePause(Sender: TService; 6 V9 b8 t1 |) I2 _
var Paused: Boolean);
4 y% J# Q+ m; p& tbegin 4 k X- R$ H1 X$ K% a1 e9 y
Paused := True; ' @# [6 |/ y* Y% X3 W6 x+ v, M
end; ( i' c8 h) ?. M/ b
9 v9 u/ G' Y5 |2 i, n; @) rprocedure TDelphiService.ServiceShutdown(Sender: TService);
/ y- {0 K: A8 m0 |/ c: _! g& xbegin
; R4 ]! d+ m) X7 N, |gbCanClose := true;
5 @6 E5 U# H6 h! H- PFrmMain.Free;
0 G( u; A# J; P; QStatus := csStopped;
& y0 C+ S6 a5 r- q( K4 H; e8 JReportStatus(); # b/ r# O3 Z; P4 ~
end;
& O9 ?, ?/ k$ f7 C% ~& S
/ a8 s& F- Y d+ A! u+ u! f* kprocedure TDelphiService.ServiceStart(Sender: TService; D$ a* T- g8 t' h q" s5 G
var Started: Boolean);
0 N" b; Z A! I tbegin 0 z( ^' E9 E P; L ^! R
Started := True;
$ j/ o B" v. a8 P+ NSvcmgr.Application.CreateForm(TFrmMain, FrmMain);
( R( h+ E. u- B% c' ogbCanClose := False;
- f& U" E( P* X3 m. u% vFrmMain.Hide; - ^% g/ N! |! b
end;
, _- z1 N9 ~4 s- H6 \
2 F3 m7 p6 b) c! ~. d. |procedure TDelphiService.ServiceStop(Sender: TService;
# n& h7 V; N( }5 U8 L6 yvar Stopped: Boolean); / g$ Q6 W x( c3 J) N
begin
; \2 L$ M" H' d# AStopped := True; 5 g+ \% X; ~5 |) T3 v+ M* F- O
gbCanClose := True;
) n% V( S, h6 e* c k1 c' L1 JFrmMain.Free;
$ [4 b; ]6 ?' a+ {4 Nend;
* B5 M0 C6 P3 U( r: L1 N& m3 ^% @
end.
- c& n# ?' F. [8 C$ C8 X# W/ o) y+ ^
2 \9 m2 @" q7 n+ ~0 C/ \; ]主窗口单元如下: 5 l, e1 U: i) \' A
( ]. M6 s5 X" O& K2 y0 zunit Unit_FrmMain;
. v& W+ _- b! a- m" r# N' l5 E- Y; ]5 ^9 D; F2 G5 c
interface 5 F0 i8 V- A% J
+ C! F8 R9 }) b: v3 n
uses 5 v. S3 E: _! U- |! }- D
Windows, Messages, SysUtils, Variants, Classes, ShellApi, Graphics, Controls, Forms,
2 S; ?. m7 G9 ?Dialogs, ExtCtrls, StdCtrls; - g; B1 d" s( V3 [* d: m: u
. o+ Y' O' q+ X4 U8 O' aconst % t+ Y- i8 r' K9 n' o6 F R' `
WM_TrayIcon = WM_USER + 1234;
9 |9 | T; z$ [: j+ e8 V' Etype
$ l( O8 e3 K. W8 @TFrmMain = class(TForm) ; Q6 l2 E) k& ^3 H$ C+ q8 q: q
Timer1: TTimer; 9 c; e1 j2 Y4 A' p+ p
Button1: TButton;
0 i9 F, L: V% a9 Bprocedure FormCreate(Sender: TObject); " K# a' u+ o5 Z* b3 o7 _0 H9 d1 f
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); % J# s. o, z) v' ]9 y: B! K
procedure FormDestroy(Sender: TObject);
+ O& B& U- z1 h/ k uprocedure Timer1Timer(Sender: TObject); " T6 G* R7 p- b6 L- z
procedure Button1Click(Sender: TObject);
+ R- y# s! r' G+ `! h+ Yprivate / {" x4 @+ k- t2 R+ J H4 Q
{ Private declarations }
* j1 s# V' K: r1 U5 x; CIconData: TNotifyIconData;
9 r, j+ Y& Y0 [6 x/ Zprocedure AddIconToTray; ; c3 U6 l2 [2 {2 {% E7 }& D5 [
procedure DelIconFromTray;
6 P7 C1 b& F, sprocedure TrayIconMessage(var Msg: TMessage); message WM_TrayIcon;
I: }: i* r1 M# N$ d! Lprocedure SysButtonMsg(var Msg: TMessage); message WM_SYSCOMMAND; . p0 X( t3 W2 m7 m" y% f
public
+ [" [1 x7 v3 p) ^9 V' f{ Public declarations }
! I. s9 X3 J. Y% p" B% Vend; 4 u4 M, Z7 C" F& @% X. k& K
" f) L" s. K+ j5 i
var , L0 r% h* V1 J8 M9 m. w! p: H( q
FrmMain: TFrmMain;
. G' L8 h- H+ `* }! i# @gbCanClose: Boolean; 8 i9 }4 B4 x8 {- V V2 x* }
implementation
4 a$ h0 |, p! L' X" N
' a6 R+ \7 F2 D: _+ R) A{$R *.dfm}
g# V. |% B: q! A& ~7 B0 k2 W F; R3 Y5 y m! h9 q6 m
procedure TFrmMain.FormCreate(Sender: TObject); * R- n6 O! Y& w- I$ f. q. g3 X5 l
begin 7 n, j. v8 s( }6 R# s4 N
FormStyle := fsStayOnTop; 0 ^0 M; r8 l& X! Z7 V# ^( ^: v
SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
0 B/ }+ z, F' UgbCanClose := False;
1 M- ?1 { i/ t. [- m5 b; ZTimer1.Interval := 1000; # {. a+ x) M, Z1 U
Timer1.Enabled := True;
9 c$ e: M, x9 k0 e' _end; ) r3 s a9 B' E2 r6 Z r1 y6 r
- F( L' {- h5 t
procedure TFrmMain.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
; j5 P' @; k" I' Ebegin 5 x4 {3 }" O! ~
CanClose := gbCanClose;
. B6 T. C' P7 Lif not CanClose then ( W5 f7 ^8 ^0 a. x$ B- |7 E" n
begin
4 o4 v4 G2 V" }" P# HHide;
; Q9 R9 e6 b2 j: c; h2 }) @8 y Yend;
8 _- T' b F( m3 R7 ^0 _6 J- |end; + r; u+ ?, j) o+ }- W; g/ w
* X! |/ @3 m& b, w7 ?* K) oprocedure TFrmMain.FormDestroy(Sender: TObject); ; S9 D) k0 `) m3 f, p' f
begin
\' e0 z' M7 r. z$ y6 }3 |Timer1.Enabled := False; " s! `; m: B1 X p) g. [! U; C; U% ]) w
DelIconFromTray; . I6 y" ^% Q1 H% h
end; . g# h6 U, T! K4 S! a; r2 B
4 q( P r1 ~9 R$ X2 c1 ^( U
procedure TFrmMain.AddIconToTray; 3 t$ ~4 i/ B* X; M3 g1 s; B
begin
# v; K) P% s$ f$ G2 HZeroMemory(@IconData, SizeOf(TNotifyIconData)); ) S$ \" S+ @2 y: Q
IconData.cbSize := SizeOf(TNotifyIconData);
+ Q4 w& v; b' R+ \6 j# sIconData.Wnd := Handle;
B0 g; [4 a( ]* @- d; BIconData.uID := 1; 6 o3 I$ ?3 c$ J
IconData.uFlags := NIF_MESSAGE or NIF_ICON or NIF_TIP; % V5 g* x! p6 |2 K9 Y" O
IconData.uCallbackMessage := WM_TrayIcon; 2 K" O7 j) c# u9 b- y
IconData.hIcon := Application.Icon.Handle; ' q4 x( H3 u' k# U
IconData.szTip := 'Delphi服务演示程序'; ; t/ p1 c! v$ A3 K! X. K+ ]2 v7 N
Shell_NotifyIcon(NIM_ADD, @IconData); + v, f1 W7 s) A/ `$ @( x
end;
; i. W6 |- M: y. V, ^( C2 Y% I2 l o
procedure TFrmMain.DelIconFromTray; }) A( N8 f, x8 E' z; V1 H
begin
. ~) I! x5 V, j. QShell_NotifyIcon(NIM_DELETE, @IconData); ' r& X- F( c* I. P1 _6 o
end;
4 ^2 O3 G$ z" R c3 `6 W/ e& p. d/ ?' k* n. s, @$ i
procedure TFrmMain.SysButtonMsg(var Msg: TMessage);
* [& N: M9 F$ W) Pbegin
7 \- x7 F8 T4 W% W- v7 |& G+ r" ~if (Msg.wParam = SC_CLOSE) or
5 G7 U0 c) G% {$ o& n2 _(Msg.wParam = SC_MINIMIZE) then Hide
% \' d ~& [6 P. e+ r7 jelse inherited; // 执行默认动作 / W. I5 J$ l) z! F" ], u- |% u
end; ! |# b8 L3 X7 _' h( g5 }1 u% M V
- Z6 B; p! G8 W/ V. L# ?* M! F- d: Nprocedure TFrmMain.TrayIconMessage(var Msg: TMessage);
7 T8 q. R+ E: |, E9 @/ _begin 1 C, e- a$ K/ x( M/ |
if (Msg.LParam = WM_LBUTTONDBLCLK) then Show();
# P) D; e0 p( @, G) oend;
% I% _0 J3 u+ z% }" t; `8 E8 u
8 b& k( w2 T4 a7 s+ pprocedure TFrmMain.Timer1Timer(Sender: TObject); P0 h0 {% }. \. @- ]1 ^- }
begin % U4 _# n1 l; y3 I# ]+ G
AddIconToTray; : K9 y0 D; N8 n3 M
end;
! T% [ j' s6 R) C# `% F6 V/ c2 V
procedure SendHokKey;stdcall; * G1 l6 o) U& x4 j9 l) t/ N( E+ p
var 2 e. G: L8 y) E$ _- Z1 D
HDesk_WL: HDESK; 6 q+ r7 K; L. y: @- |
begin 0 y' Q" @/ c! N. k
HDesk_WL := OpenDesktop ('Winlogon', 0, False, DESKTOP_JOURNALPLAYBACK);
+ H9 U) d- u5 e! }$ e Aif (HDesk_WL <> 0) then 1 L, y( \4 x# d" [9 u
if (SetThreadDesktop (HDesk_WL) = True) then : X# Y9 t) s" |# s
PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG (MOD_ALT or MOD_CONTROL, VK_DELETE)); 9 X/ S8 G9 k/ `6 ?
end;
* W+ e; e. g' G6 w, ]: x1 c: ?! V9 X' S
procedure TFrmMain.Button1Click(Sender: TObject);
7 E$ ~& J* x- Cvar
, i4 _$ I* x: V6 [1 u! I+ E }/ PdwThreadID : DWORD; 4 U8 Z, ?# ]( b9 X! u1 {- L$ n8 J
begin # g3 B e1 q. l1 r) j
CreateThread(nil, 0, @SendHokKey, nil, 0, dwThreadID);
. J4 S, W6 X( C! @% F) Z5 Wend;
0 f6 B. E1 S k! O$ A& \$ r1 P0 p0 d; ^5 p8 B+ w5 [
end. ) M) V$ ~ p; }* m; R; P/ A& t- d
R8 f- k2 d1 O/ C8 N* a* D% n6 Z: Y5 ]7 u- O
补充: * V+ U* o M0 \
(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.
9 u0 z7 x# I2 r! |( E6 g6 y! p* O- I& S
(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.
7 v4 l9 ~: S- h! q t& y/ |8 Z0 Z$ P, k& i/ w0 s1 l
(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:
" ]* } S2 f. B# Z6 }5 }! [unit ServiceDesktop;
6 z; N4 K! `+ k- l/ p+ t+ u
6 w9 Z$ U( O5 tinterface 2 J; i9 x& j |3 p! O
( M9 T6 q8 B6 O- nfunction InitServiceDesktop: boolean;
L( ]4 X: E1 f9 z0 N$ Kprocedure DoneServiceDeskTop;
/ U0 Z) Z) T7 ]& ~5 @# O+ ~( v
implementation # t ~& U4 R$ X, L* b
$ @: t% y4 R# ]& Tuses Windows, SysUtils;
' j: J2 U1 E5 f8 t6 x
O+ Z' X. q) u6 b+ O b1 V! ?const
0 d, }3 W! T# KDefaultWindowStation = 'WinSta0'; 9 J0 J" C! ^" h4 o! v
DefaultDesktop = 'Default';
% B' e$ X- o5 u6 v- Bvar
/ h2 ~' H" K1 u [! z% R/ chwinstaSave: HWINSTA;
+ p0 r! {3 R* X6 T6 U! XhdeskSave: HDESK;
- a% i$ O) y0 YhwinstaUser: HWINSTA;
o% q; g! O0 o7 D8 bhdeskUser: HDESK; 3 j; y, l a" k. P& ]% {
function InitServiceDesktop: boolean;
9 D: Z3 p1 ~) L. h* mvar
0 G& I8 I3 b% m$ n4 ]dwThreadId: DWORD; t5 V0 A. b( |3 T1 I2 S
begin
0 D1 X1 L$ m6 N; i/ @dwThreadId := GetCurrentThreadID; ; z; M3 o' ^4 S
// Ensure connection to service window station and desktop, and " f2 [2 r9 l0 `
// save their handles.
! G, k4 `9 j) K( G& V# P) ZhwinstaSave := GetProcessWindowStation;
6 Z$ V: ]* f+ p8 g! j5 `hdeskSave := GetThreadDesktop(dwThreadId);
, o# \$ ^. k3 H" ]1 R: T9 S/ g, H( E$ z8 I
- E2 y% K3 T& z0 y2 j& T/ X. OhwinstaUser := OpenWindowStation(DefaultWindowStation, FALSE, MAXIMUM_ALLOWED);
! L' ^' Y, R6 }! k% Rif hwinstaUser = 0 then
0 ?( F+ t) ?8 H) t4 X6 w* p) R4 zbegin + f6 j: X3 X/ M% S2 a: d
OutputDebugString(PChar('OpenWindowStation failed' + SysErrorMessage(GetLastError))); + c1 J( \; L& v7 I) [
Result := false;
! |$ K/ S* Z. l( T' Hexit;
, L4 M. b* h0 X! R4 @end;
8 d8 l- F7 c+ N J7 [( G9 S0 r' s
0 I) ]9 H1 O0 z" Q3 Tif not SetProcessWindowStation(hwinstaUser) then 8 C! s7 Z4 Y% [! O
begin 9 O# Q1 O3 y2 }5 D& x
OutputDebugString('SetProcessWindowStation failed');
& z3 O% s! L; c' p3 |+ z/ uResult := false;
# A; c3 {3 y$ I5 l- b4 a! nexit;
; T- _1 G/ v' w. x& X& F" t, ?9 bend; d* o0 ^- Z4 U x
% a3 a( [% Q$ p& k3 D% R7 p! m
hdeskUser := OpenDesktop(DefaultDesktop, 0, FALSE, MAXIMUM_ALLOWED); + j0 E9 f" X6 K
if hdeskUser = 0 then
% j! ?/ |! R$ [/ C7 i2 o# x( ~( Ibegin . L' s- s* Y) W0 L1 d. }
OutputDebugString('OpenDesktop failed');
/ f+ s$ _4 `+ G3 XSetProcessWindowStation(hwinstaSave);
- `( w, @4 {) t9 {CloseWindowStation(hwinstaUser);
% C7 z: t0 v' F5 T* UResult := false;
( n- `0 B% a4 I; _, Z3 eexit; ) m$ @3 u0 H' l8 x
end; 5 v. \' t$ D' \9 I1 h$ _ \9 r- Q# j
Result := SetThreadDesktop(hdeskUser); 0 _& {$ z9 A" x7 \! O* H d
if not Result then
. m5 M. w! p* D6 s, @# V6 nOutputDebugString(PChar('SetThreadDesktop' + SysErrorMessage(GetLastError))); + q) D. `8 Z; n d3 d
end; 3 A7 g: R! y( s C/ r9 ]2 H6 @
* K7 Q' D) }( {6 e! E
procedure DoneServiceDeskTop; ) X, u+ [+ n! W; _. U
begin + y& x S2 _# [- c
// Restore window station and desktop.
% v2 {; `9 ~& N' K3 wSetThreadDesktop(hdeskSave);
/ a# y; @! Y3 T4 u) ASetProcessWindowStation(hwinstaSave);
! J$ n( O' A# `: M- M# ^7 Qif hwinstaUser <> 0 then ' Q K& ^; w/ a m4 J4 Q; m
CloseWindowStation(hwinstaUser);
: K( S' q; K | k# Dif hdeskUser <> 0 then . @# Z4 I- S% F& n- x! e/ [0 z* q
CloseDesktop(hdeskUser);
) t6 h1 b5 z) K; n& y, a# Z2 T- Iend;
$ s- a- S* m" Q8 j1 R7 _0 d
1 i- ^4 r8 ~$ w/ i0 L# Ainitialization
% u4 P2 _' m; _, g$ r; U' F2 D6 XInitServiceDesktop;
( e A4 r5 l# ~; u1 g3 X! h; }/ Ifinalization
0 q* _- F6 T% hDoneServiceDesktop; ; R8 i+ Y8 P: P/ v- i
end. , q# j( s" X5 i7 W* c* b$ k
更详细的演示代码请参看:http://www.torry.net/samples/samples/os/isarticle.zip & B8 [3 |* v% K+ [* \7 X6 d
3 I7 q2 Q- a4 q/ Y0 `(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:
% o3 [* [% w: f c: o" v1 _' L. B! R h
unit WinSvcEx;
& P4 J2 H: f' v0 ^5 S8 w9 l8 b
- E: l% \& e! H9 F, Uinterface 8 z6 l: I. i* s8 C1 T9 J% f g
# b* G1 R) ~( E% T7 s4 [: G
uses Windows, WinSvc;
0 v) u/ U+ F2 f( M9 |/ r: l( _4 @5 B. j3 z( E0 J
const 0 e& r# G) V+ Y- f
//
6 q: Y9 f* z1 ~; s7 E2 `. J% T// Service config info levels
' J+ K7 N. }. Z k) I//
. p2 y/ I3 N! H6 b4 O* U2 X( d) qSERVICE_CONFIG_DESCRIPTION = 1; % F+ X! v' e% [0 Z8 M
SERVICE_CONFIG_FAILURE_ACTIONS = 2; |
zan
|