关闭进程

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,Tlhelp32, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

function KillTask(ExeFileName: string): Integer;     //关闭进程
function EnableDebugPrivilege: Boolean;              //提升权限    
function FindProcessId(ExeFileName: string):THandle; //查找进程

implementation

{$R *.dfm}

function FindProcessId(ExeFileName: string):THandle;
var
  ContinueLoop:BOOL;
  FSnapshotHandle:THandle;
  FProcessEntry32:TProcessEntry32;
begin
  result:=0;
  FSnapshotHandle:=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
  FProcessEntry32.dwSize:=Sizeof(FProcessEntry32);
  ContinueLoop:=Process32First(FSnapshotHandle,FProcessEntry32);
  while integer(ContinueLoop)<>0 do
  begin
    if UpperCase(FProcessEntry32.szExeFile)=UpperCase(ExeFileName) then
    begin
      result:=FProcessEntry32.th32ProcessID;
      break;
    end;
    ContinueLoop:=Process32Next(FSnapshotHandle,FProcessEntry32);
  end;
  CloseHandle (FSnapshotHandle);
end;

function KillTask(ExeFileName: string): Integer;
const
  PROCESS_TERMINATE = $0001;
var
  ContinueLoop: boolean;
  FSnapshotHandle: THandle;
  FProcessEntry32: TProcessEntry32;
begin
  Result := 0;
  FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
  FProcessEntry32.dwSize := SizeOf(FProcessEntry32);
  ContinueLoop := Process32First(FSnapshotHandle, FProcessEntry32);

  while Integer(ContinueLoop) <> 0 do
  begin
  if ((UpperCase(ExtractFileName(FProcessEntry32.szExeFile)) =
  UpperCase(ExeFileName)) or (UpperCase(FProcessEntry32.szExeFile) =
  UpperCase(ExeFileName))) then
  Result := Integer(TerminateProcess(
  OpenProcess(PROCESS_TERMINATE,
  BOOL(0),
  FProcessEntry32.th32ProcessID),
  0));
  ContinueLoop := Process32Next(FSnapshotHandle, FProcessEntry32);
  end;
  CloseHandle(FSnapshotHandle);
end;

//但是对于服务程序,它会提示"拒绝访问".其实只要程序拥有Debug权限即可:
function EnableDebugPrivilege: Boolean;
  function EnablePrivilege(hToken: Cardinal; PrivName: string; bEnable: Boolean): Boolean;
  var
  TP: TOKEN_PRIVILEGES;
  Dummy: Cardinal;
  begin
  TP.PrivilegeCount := 1;
  LookupPrivilegeValue(nil, pchar(PrivName), TP.Privileges[0].Luid);
  if bEnable then
  TP.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED
  else TP.Privileges[0].Attributes := 0;
  AdjustTokenPrivileges(hToken, False, TP, SizeOf(TP), nil, Dummy);
    Result := GetLastError = ERROR_SUCCESS;
  end;
var
  hToken: Cardinal;
begin
  OpenProcessToken(GetCurrentProcess, TOKEN_ADJUST_PRIVILEGES, hToken);
  result:=EnablePrivilege(hToken, 'SeDebugPrivilege', True);
  CloseHandle(hToken);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
if EnableDebugPrivilege then
killtask('qq.exe');
end;

end.