unit1.pas

Delphi7应用编程150例附书源码.rar

unit Unit1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ShellApi, StdCtrls;

type
  TfrmMain = class(TForm)
    edtPath: TEdit;
    Label1: TLabel;
    btnDelete: TButton;
    procedure btnDeleteClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

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

procedure TfrmMain.btnDeleteClick(Sender: TObject);
var
    T:TSHFileOpStruct;
    P:String;
begin
    P:=edtPath.Text;
    with T do
    begin
        Wnd:=0;
        wFunc:=FO_DELETE;
        pFrom:=Pchar(P);
        fFlags:=FOF_ALLOWUNDO
    end;
    if SHFileOperation(T)=0 then
        ShowMessage('删除成功')
    else
        ShowMessage('删除失败');
end;
end.