如何知道计算机上插有 U盘 或 移动硬盘等设备???怎莫监测?????

[编程的西红柿2]

如何知道计算机上插有 U盘 或 移动硬盘等设备???怎莫监测?????

[sixgj]

要干吗呢？得到硬件信息？

[Dhammacakkhu]

使用GetDrivetype，返回2代表是移动设备

[Dhammacakkhu]

使用GetDrivetype，返回2代表是移动设备

[编程的西红柿2]

想知道U盘 什莫时候插上和拔下来

[hch_45]

UINT GetDriveType(

LPCTSTR lpRootPathName // address of root path
);

Value Meaning
0 The drive type cannot be determined.
1 The root directory does not exist.
DRIVE_REMOVABLE The drive can be removed from the drive.
DRIVE_FIXED The disk cannot be removed from the drive.
DRIVE_REMOTE The drive is a remote (network) drive.
DRIVE_CDROM The drive is a CD-ROM drive.
DRIVE_RAMDISK The drive is a RAM disk.

[Dhammacakkhu]

可以用消息,给你贴一段zswang兄的：

//思路是监测驱动器的改变～～
//插来插去，测试了一下，得到的数值～～

type
TForm1 = class(TForm)
Memo1: TMemo;
private
{ Private declarations }
procedure WMDEVICECHANGE(var Msg: TMessage); message WM_DEVICECHANGE; //驱动器改变
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.WMDEVICECHANGE(var Msg: TMessage);
begin
inherited;
case Msg.WParam of
32772: Caption := '关闭';
32768: Caption := '就绪';
end;
end;