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进程、窗口句柄、文件属性、程序运行状态

 2006-02-04 13:48:01 来源:WEB开发网   
核心提示:uses TLHelp32,PsAPI;(1)显示进程列表:PRocedure TForm1.Button2Click(Sender: TObject);var lppe: TProcessEntry32; found : boolean; Hand : THandle; P:DWord; s:string;b

uses TLHelp32,PsAPI;

(1)显示进程列表:
PRocedure TForm1.Button2Click(Sender: TObject);
var lppe: TProcessEntry32;
   found : boolean;
   Hand : THandle;
   P:DWord;
   s:string;
begin
  ListBox1.Items.Clear ;
  Hand := CreateToolhelp32Snapshot(TH32CS_SNAPALL,0);
  found := Process32First(Hand,lppe);
  while found do
  begin
   s := StrPas(lppe.szExeFile);
   if lppe.th32ProcessID>0 then
    p := lppe.th32ProcessID
   else
    p := 0;
   ListBox1.Items.AddObject(s,pointer(p));//列出所有进程。
   found := Process32Next(Hand,lppe);
  end;
end;

(2)杀死某进程:
procedure TForm1.Button3Click(Sender: TObject);
var lppe: TProcessEntry32;
   found : boolean;
   Hand : THandle;
   P:DWORD;
   sExeFile,sSelect:string;
   killed:boolean;
begin
  p :=DWORD(ListBox1.Items.Objects[ListBox1.itemindex]);
  if P<>0 then
  begin
   killed := TerminateProcess(OpenProcess(PROCESS_TERMINATE,False,P),$FFFFFFFF);
   if not killed then
    messagebox(self.handle,pchar(sExeFile+'无法杀死!'),'提示',MB_OK or MB_ICONWARNING)
   else
    ListBox1.Items.Delete(ListBox1.ItemIndex);
  end;
end;

(3)取得某进程EXE路径:
procedure TForm1.Button8Click(Sender: TObject);  //uses  PSAPI;
var
  h:THandle;  fileName:string; iLen:integer; hMod:HMODULE;cbNeeded,p:DWORD;
begin
  p :=DWORD(ListBox1.Items.Objects[ListBox1.itemindex]);
  h  :=  OpenProcess(PROCESS_ALL_access,  false,  p);    //p  为 进程ID
  if  h  >  0  then
  begin
   if  EnumProcessModules(  h,  @hMod,  sizeof(hMod),  cbNeeded)  then
   begin
    SetLength(fileName,  MAX_PATH);
    iLen  :=  GetModuleFileNameEx(h,  hMod,  PCHAR(fileName),  MAX_PATH);
    if  iLen  <>  0  then
    begin
     SetLength(fileName,  StrLen(PCHAR(fileName)));
     ShowMessage(fileName);
    end;
   end;
   CloseHandle(h);
  end;
end;

(4)取得窗口列表
begin
  ListBox1.Items.Clear ;
  EnumWindows(@EnumWindowsProc, 0);
end;

(5)杀死窗口进程
procedure TForm1.Button6Click(Sender: TObject);
var
  H:THandle;
  P:DWORD;
  s:string;
  killed:boolean;
begin
  s := ListBox1.Items[ListBox1.ItemIndex];
  H:=FindWindow(nil,pchar(s));
  if H<>0 then
  begin
   GetWindowThreadProcessId(H,@P);
   if P<>0 then
    killed:=TerminateProcess(OpenProcess(PROCESS_TERMINATE,False,P),$FFFFFFFF);
   if not killed then
    messagebox(self.handle,pchar(s+'无法杀死!'),'提示',MB_OK or MB_ICONWARNING)
   else
    ListBox1.Items.Delete(ListBox1.ItemIndex);
  end;
end;

(6)取得窗口进程路径:
procedure TForm1.Button9Click(Sender: TObject);
var
  H:THandle;  P,cbNeeded: DWORD;  s,fileName:string;
  iLen:integer;  hMod:HMODULE;
begin
  s := ListBox1.Items[ListBox1.ItemIndex];
  H:=FindWindow(nil,pchar(s));

  if H<>0 then
  begin
   GetWindowThreadProcessId(H,@P);
   if P<>0 then
   begin
    h  :=  OpenProcess(PROCESS_ALL_ACCESS,  false,  p);    //p  为 进程ID
    if  h  >  0  then
    begin
     if  EnumProcessModules(  h,  @hMod,  sizeof(hMod),  cbNeeded)  then
     begin
      SetLength(fileName,  MAX_PATH);
      iLen  :=  GetModuleFileNameEx(h,  hMod,  PCHAR(fileName),  MAX_PATH);
      if  iLen  <>  0  then
      begin
          SetLength(fileName,  StrLen(PCHAR(fileName)));
          ShowMessage(fileName);
      end;
     end;
     CloseHandle(h);
    end;
   end;
  end;
end;

(7)文件属性:
procedure TForm1.Button1Click(Sender: TObject);
var
  SR: TSearchRec;
  V1, V2, V3, V4: integer  ;
const
  dtFmt:string = 'YYYY-MM-DD HH:NN:SS';
begin
  // ============== 方法一 ==================== //
  if FindFirst(sFileName, faAnyFile, SR) = 0 then
  begin
   Edit1.Text := intToStr(SR.Attr);  //文件属性
   Edit2.Text := intToStr(SR.Size);  //文件大小
   Edit3.Text := FormatDateTime(dtFmt,CovFileDate(SR.FindData.ftCreationTime));  //创建时间
   Edit4.Text := FormatDateTime(dtFmt,CovFileDate(SR.FindData.ftLastWriteTime));  //最后修改时间
   Edit5.Text := FormatDateTime(dtFmt,CovFileDate(SR.FindData.ftLastAccessTime)); //最后访问时间

   if SR.Attr and faHidden <> 0 then
    FileSetAttr(sFileName, SR.Attr-faHidden);

   FindClose(SR);
  end;

  if GetFileVersion(sFileName,V1, V2, V3, V4) then
   Edit7.Text := intToStr(v1)+'.'+intToStr(v2)+'.'+intToStr(v3)+'.'+intToStr(v4);

  // ============== 方法二 ==================== //
  {
  var
  Attrs: Word;
  f: file of Byte;  // 文件大小 必须要 定义为" file of byte" ,这样才能取出 bytes
  size: Longint;

  //文件属性
  Attrs := FileGetAttr(sFileName);

  Edit1.Text := intToStr(Attrs);

  //文件大小
  AssignFile(f, OpenDialog1.FileName);
  Reset(f);
  try
   AssignFile(f, sFileName);
   Reset(f);
   size := FileSize(f);
   Edit2.Text := intToStr(size);
  finally
   CloseFile(f);
  end;
  }
end;

(8)判断程序是否在运行:
procedure TForm1.Button5Click(Sender: TObject);
var PrevInstHandle:Thandle;
  AppTitle:pchar;
begin
 AppTitle := pchar('test');
 PrevInstHandle := FindWindow(nil, AppTitle);
   if PrevInstHandle <> 0 then begin
    if IsIconic(PrevInstHandle) then
     ShowWindow(PrevInstHandle, SW_RESTORE)
    else
     BringWindowToTop(PrevInstHandle);
    SetForegroundWindow(PrevInstHandle);
   end;
end;

Tags:进程 窗口 句柄

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