红色代码处报错,求解!谢谢
'扫描图片
''无参数
''返回值:输出图片
Dim imageFile As WIA.imageFile
Dim Img As Bitmap
Dim cdc As New WIA.CommonDialogClass()
Try
imageFile = cdc.ShowAcquireImage(WIA.WiaDeviceType.ScannerDeviceType, WIA.WiaImageIntent.TextIntent, WIA.WiaImageBias.MaximizeQuality, "{00000000-0000-0000-0000-000000000000}", True, True,False)
If imageFile IsNot Nothing Then
img = imageFile.GetBitmap()
Return img
End If
Catch generatedExceptionName As System.Runtime.InteropServices.COMException
MessageBox.Show("您的扫描仪尚未准备好!","错误",MessageBoxButtons.OK,MessageBoxIcon.Error)
Return Nothing
End Try