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, StdCtrls, FileCtrl;

type
  TForm1 = class(TForm)
    DriveComboBox1: TDriveComboBox;
    Label1: TLabel;
    procedure DriveComboBox1Change(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.DriveComboBox1Change(Sender: TObject);
var
  driver:pchar;
begin
  driver:=PChar(self.DriveComboBox1.Drive+':\');
  case GetDriveType(driver) of
    2: Label1.Caption := '该驱动器是可移动驱动器';
    3: Label1.Caption := '该驱动器是固定驱动器';
    4: Label1.Caption := '该驱动器是网络驱动器';
    5: Label1.Caption := '该驱动器是CD-ROM驱动器';
    6: Label1.Caption := '该驱动器是虚拟驱动器';
    else Label1.Caption := '该驱动器无效';
  end;
end;

end.