Delphi 服务程序[5] 描述、开启、停止、检索、状态

uses
    Registry;

procedure TSerTest.ServiceAfterInstall(Sender: TService);
var
  Reg: TRegistry;
begin
  Reg := TRegistry.Create(KEY_READ or KEY_WRITE);
  try
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    if Reg.OpenKey(‘\SYSTEM\CurrentControlSet\Services\‘ + Name, false) then
    begin
      Reg.WriteString(‘Description‘, ‘This is a description for my fine Service Application.‘);
      Reg.CloseKey;
    end;
  finally
    Reg.Free;
  end;
end;　　

uses Windows,Messages,SysUtils,Winsvc,Dialogs;

//开启服务
function StartServices(Const SvrName: String): Boolean;
var
  sMgr, sHandle:SC_HANDLE;
  c:PChar;
begin
  Result:=False;

  sMgr := OpenSCManager(nil, nil, SC_MANAGER_ALL_ACCESS);
  if sMgr <=0 then Exit;

  sHandle := OpenService(sMgr, PChar(SvrName), SERVICE_ALL_ACCESS);
  if sHandle <=0 then Exit;

  try
    Result:=StartService(sHandle, 0, c);
    CloseServiceHandle(sHandle);
    CloseServiceHandle(sMgr);
  except
    CloseServiceHandle(sHandle);
    CloseServiceHandle(sMgr);
  end;
end;

//停止服务
function StopServices(Const SvrName: String): Boolean;
var
  sMgr, sHandle: SC_HANDLE;
  d: TServiceStatus;
begin
  Result := False;

  sMgr := OpenSCManager(nil,nil,SC_MANAGER_ALL_ACCESS);
  if sMgr <=0 then Exit;
  sHandle := OpenService(sMgr,PChar(SvrName),SERVICE_ALL_ACCESS);
  if sHandle <=0 then Exit;
  try
    Result:=ControlService(sHandle, SERVICE_CONTROL_STOP,d);
    CloseServiceHandle(sMgr);
    CloseServiceHandle(sHandle);
  except
    CloseServiceHandle(sMgr);
    CloseServiceHandle(sHandle);
  end;
end;

//查询当前服务的状态
function  QueryServiceStatu(Const SvrName: String): String;
var
  sMgr, sHandle: SC_HANDLE;
  d: TServiceStatus;
begin
  Result := ‘未安装‘;

  sMgr := OpenSCManager(nil,nil,SC_MANAGER_ALL_ACCESS);
  if sMgr <=0 then Exit;
  sHandle := OpenService(sMgr,PChar(SvrName),SERVICE_ALL_ACCESS);

  if sHandle <= 0 then Exit;
  try
    QueryServiceStatus(sHandle, d);
  if d.dwCurrentState  = SERVICE_RUNNING then
    Result := ‘启动‘   //Run
  else if d.dwCurrentState   = SERVICE_RUNNING then
    Result := ‘Wait‘   //Runing
  else if d.dwCurrentState   = SERVICE_START_PENDING then
    Result := ‘Wait‘   //Pause
  else if d.dwCurrentState   = SERVICE_STOP_PENDING   then
    Result := ‘停止‘   //Pause
  else if d.dwCurrentState   = SERVICE_PAUSED then
    Result := ‘暂停‘   //Pause
  else if d.dwCurrentState   = SERVICE_STOPPED then
    Result := ‘停止‘   //Stop
  else if d.dwCurrentState   = SERVICE_CONTINUE_PENDING   then
    Result := ‘Wait‘   //Pause
  else if d.dwCurrentState   = SERVICE_PAUSE_PENDING then
    Result := ‘Wait‘;   //Pause

    CloseServiceHandle(sMgr);
    CloseServiceHandle(sHandle);
  except
    CloseServiceHandle(sMgr);
    CloseServiceHandle(sHandle);
  end;
end;

function IsServiceExisted(Const SvrName: String):Boolean;
var
  sMgr, sHandle:SC_HANDLE;
begin
  Result:=False;
  sMgr := OpenSCManager(nil,nil,SC_MANAGER_ALL_ACCESS);
  if sMgr <= 0 then  Exit;
  sHandle :=OpenService(sMgr, PChar(SvrName), STANDARD_RIGHTS_REQUIRED);
  if sHandle > 0 then
    Result := True;
end;