unit1.pas

Delphi7应用编程150例 附书源码

unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls;
type
  TfrmMain = class(TForm)
    Timer1: TTimer;
    procedure Timer1Timer(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmMain: TfrmMain;
implementation
{$R *.dfm}

procedure TfrmMain.Timer1Timer(Sender: TObject);
var
    ico:TIcon;
    hld:hWnd;
    ThreadId:DWord;
    mp:TPoint;
    ff:TPoint;
begin
    GetCursorPos(mp);
    self.Refresh;
    hld:=WindowFromPoint(mp);
    ThreadId:=GetWindowThreadProcessId(hld,nil);
    AttachThreadInput(GetCurrentThreadId,ThreadId,true);
    ico:=TIcon.Create;
    ico.Handle:=GetCursor();
    AttachThreadInput(GetCurrentThreadId,ThreadId,false);
    Canvas.Draw(100,100,ico);
    ico.free;
end;

end.