这有点像金山词霸屏幕取词要获取当前鼠标位置类名和句柄只须通过 WindowFromPo

和GetClassName 这两个Win32就可以完成任务不过如果要获取当前鼠标位置可能要复杂得多

下面是很简单范例大家应该都可以轻易弄清楚

　

type
TForm1 = (TForm)
NameLB: TLabel;
ClassLB: TLabel;
Timer1: TTimer;
procedure Timer1Timer(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
procedure GetMousePosHwndAndClassName(Sender : TPo);
public

end;

var
Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Timer1Timer(Sender: TObject);
var
rPos: TPo;
begin
boolean(GetCursorPos(rPos)) then
GetMousePosHwndAndClassName(rPos);
end;

procedure TForm1.GetMousePosHwndAndClassName(Sender: TPo);
var
hWnd: THandle;
aName: .gif' /> [0..255] of char;
begin
hWnd := WindowFromPo(Sender);
NameLB.Caption := ’Handle : ’ + IntToStr(hWnd);

boolean(GetClassName(hWnd, aName, 256)) then
ClassLB.Caption := ’ClassName : ’ + (aName)


ClassLB.Caption := ’ClassName : not found’;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
Form1.FormStyle := fsStayOnTop;
Timer1.Interval := 50;
end;