控制 Service 的元件 |
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pcplayer99
尊榮會員 發表:146 回覆:790 積分:632 註冊:2003-01-21 發送簡訊給我 |
因为要用自己的程序去控制Service 程序,完成安装Service/启动Service的过程,查了一下WIN32 API,把控制Service的几个函数找到了。为方便在DELPHI中使用及将来的 Re-use,我把它封装成元件。
代码如下:
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unit UControlService; {--------------------------------------------------------------- 安装一个 Service 和启动一个 service 的控件。 -------------------------------------------------------------------} interface uses SysUtils, Windows, WinSvc, ShellAPI; type TLjnServiceManager=Class private FServiceName:String; SMHandle:THandle; SHandle:THandle; ServiceExists:Boolean; //指定的 Service 存在。 FServiceFileName:String; //这个 service程序文件的全名 FHandle:HWND; //调用本控件的程序的Handle procedure CloseService; public procedure LjnSetServiceName(AValue:String); constructor Create; destructor Destroy; override; function LjnOpenService(AServiceName:String):Boolean; procedure LjnStartService; procedure LjnStopService; function LjnInstallService:Boolean; procedure LjnSetServiceFileName(Value:String); procedure LjnSetProgHandle(Value:HWND); end; implementation { TLjnServiceManager } procedure TLjnServiceManager.CloseService; begin if SHandle>0 then begin CloseServiceHandle(SHandle); end; if (SMHandle>0) then begin CloseServiceHandle(SMHandle); end; end; constructor TLjnServiceManager.Create; begin inherited; SMHandle:=0; SHandle:=0; ServiceExists:=False; end; destructor TLjnServiceManager.Destroy; begin CloseService; ServiceExists:=False; inherited; end; function TLjnServiceManager.LjnOpenService(AServiceName: String):Boolean; begin Result:=False; CloseService; FServiceName:=AServiceName; SMHandle:=OpenSCManager(nil,nil,SC_MANAGER_CONNECT); SHandle:=OpenService(SMHandle,PChar(FServiceName),SERVICE_ALL_ACCESS); if SHandle>0 then begin ServiceExists:=True; Result:=True; end else begin // InstallService; end; end; procedure TLjnServiceManager.LjnSetServiceName(AValue: String); begin FServiceName:=AValue; end; procedure TLjnServiceManager.LjnStartService; var P:Pchar; begin if ServiceExists then StartService(SHandle,0,P); end; procedure TLjnServiceManager.LjnStopService; var P:TServiceStatus; begin ControlService(SHandle,SERVICE_CONTROL_STOP,P); end; function TLjnServiceManager.LjnInstallService: Boolean; var S1:String; begin {---------------------------------------------------------- 安装一个 Service ----------------------------------------------------------------------} Result:=False; if ServiceExists then Exit; S1:=' /install /SILENT'; try ShellExecute(FHandle,'open',PAnsiChar(FServiceFileName),PAnsiChar(S1),nil,SW_HIDE); except Exit; end; Sleep(1000); Result:=True; end; procedure TLjnServiceManager.LjnSetServiceFileName(Value: String); begin FServiceFileName:=Value; end; procedure TLjnServiceManager.LjnSetProgHandle(Value: HWND); begin FHandle:=Value; end; end. |
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