{以下代码可以分析Windows下的鼠标处的对象类名，句柄及其递归父类等信息，是很久以前火鸟的工具软件视窗超人中的一段代码。其触发使用了Timer控件，其实更好的实现是用Windows Mouse Hook来做触发，就当抛砖引玉吧；此代码还实现了不依赖于Windows2000以上要求的半透明窗口（在Win98/WinMe下也可半透明），本实现的实现其实比较类似于金山词霸的即指即译功能，只不过大家在做不同的应用而已。 在Delphi环境下，新建一个窗体，把代码贴入即可，本工具主要会对做Windows环境下的开发人员工作有些帮助（如分析别人的程序的控件对象，跟踪对象句柄等）}
unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    procedure Timer1Timer(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  Timer1: TTimer;

implementation

{$R *.dfm}

procedure TForm1.Timer1Timer(Sender: TObject);
var poss:TPoint;
    ic:Hdc;
    Bmp:TbitMap;
  Hands: HWND;
  Buf: array[0..129] of Char;
  Stmp:TStrings;
  itmp,iwidth,iheight:integer;
  sword,sline:string;
begin
  GetCursorPos(Poss);
  with self do
  begin
    if (poss.x <> tag-10) or (poss.y<>timer1.Tag-10) then left:=screen.Width
    else
    begin
      Hands := WindowFromPoint(Poss);
      if (left=tag) or (hands=handle) then exit;
      stmp:=TStringList.create;
      stmp.Add('句柄: '+IntToStr(Hands));
      GetClassName(Hands, Buf, 128);
      stmp.Add ('类名: '+Buf);
      itmp:=GetParent(Hands);
      while itmp>0  do
      begin
          GetClassName(itmp, Buf, 128);
          if buf<>'' then stmp.Add (inttostr(stmp.Count-1)+'级父类: '+Buf);
          itmp:=GetParent(itmp);
      end;
      SendMessage(Hands, WM_GETTEXT, 128, Integer(@Buf));
      sword:='字符: '+buf;
      if length(sword)>132 then sword:=sword+'....';
      repeat
        itmp:=pos(chr(10),sWord);
        if itmp>0 then
        begin
          sline:=copy(sWord,1,itmp-1);
          sword:=copy(sWord,itmp+1,length(sword));
        end
        else sline:=sword;
        itmp:=pos(chr(13),sline);
        if itmp>0 then sline:=copy(sline,1,itmp-1);
        stmp.Add(sline);
      until sline=sword;
      iwidth:=0;
      for itmp:=0 to stmp.Count-1 do if canvas.TextWidth(stmp[itmp])+15>iWidth then iWidth:=canvas.TextWidth(stmp[itmp])+15;
      iheight:=stmp.Count*(canvas.TextHeight(stmp[0])+2);
      width:=iwidth;
      height:=iheight;
      SetWindowPos(Handle, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE+ SWP_NOSIZE+SWP_NOACTIVATE+SWP_NOOWNERZORDER);
      ic:=CreateDC('DISPLAY',nil,nil,nil);
      if tag+width>screen.Width then tag:=screen.Width-width;
      if timer1.Tag +height>screen.Height then timer1.Tag:=screen.Height-height;
      Bmp:=Tbitmap.Create;
      bmp.Width := Width;
      bmp.Height :=Height;
      bitblt(bmp.Canvas.handle,0,0,Width,Height,ic,tag,timer1.Tag,SRCCOPY);
      Left :=tag;
      Top :=timer1.tag;
      bitblt(canvas.handle,0,0,Width,Height,bmp.Canvas.handle,0,0,SRCAND);
      canvas.Font.Color:=$0000FF;
      SetBkMode(canvas.handle,TRANSPARENT);
      for itmp:=0 to stmp.Count-1 do canvas.TextOut(5,5+itmp*canvas.TextHeight(stmp[itmp]),TrimRight(stmp[itmp]));
      deletedc(ic);
      bmp.free;
      stmp.Free;
    end;
    tag:=poss.x+10;
    timer1.Tag:=poss.y+10;
  end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
  self.BorderStyle:=bsNone;
  Timer1:=TTimer.Create(self);
  timer1.Interval:=300;
  timer1.OnTimer:=Timer1Timer;
end;

end.