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Delphi source code for Windows >> Get handle and class name from the current mouse pos


Category: Windows
Title: Get handle and class name from the current mouse pos
Date added: 15.03.2006
Hits: 20804


type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Timer1: TTimer;
    
procedure Timer1Timer(Sender: TObject);
    
procedure FormCreate(Sender: TObject);
  private
    
procedure ShowHwndAndClassName(CrPos: TPoint);
  public
end;
var
  Form1: TForm1;
implementation
{$R *.DFM}

procedure TForm1.Timer1Timer(Sender: TObject);
var
  rPos: TPoint;
begin
  if Boolean(GetCursorPos(rPos)) then ShowHwndAndClassName(rPos);
end;

procedure TForm1.ShowHwndAndClassName(CrPos: TPoint);
var
  hWnd: THandle;
  aName: array [0..255] of Char;
begin
  hWnd := WindowFromPoint(CrPos);
  Label1.Caption := 'Handle :  ' + IntToStr(hWnd);
  if Boolean(GetClassName(hWnd, aName, 256)) then
    Label2.Caption := 'ClassName :  ' + string(aName)
  else
    Label2.Caption := 'ClassName :  not found';
end;

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


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