using System;using System.Collections.Generic;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO;using System.Collections;using WIA;//Com 引用 Microsoft Windows Image Acquisiton Library v2.0namespace FileUpAndDown.baseCommon{ /// <summary> /// 扫描仪扫描 /// </summary> public class ScanOper { /// <summary> /// 构造函数 /// </summary> public ScanOper() { htFormtIDs = GetImageTypeIDHashTable();//获取数据 } /// <summary> /// 存储扫描图像类型ID的哈希表 /// </summary> private Hashtable htFormtIDs; #region [方法] /// <summary> /// 获取图片格式ID哈希表 /// </summary> /// <returns></returns> private Hashtable GetImageTypeIDHashTable() { Hashtable ht = new Hashtable(); ht.Add("wiaFormatBMP", "{B96B3CAB-0728-11D3-9D7B-0000F81EF32E}"); ht.Add("wiaFormatPNG", "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}"); ht.Add("wiaFormatGIF", "{B96B3CB0-0728-11D3-9D7B-0000F81EF32E}"); ht.Add("wiaFormatJPEG", "{B96B3CAE-0728-11D3-9D7B-0000F81EF32E}"); ht.Add("wiaFormatTIFF", "{B96B3CB1-0728-11D3-9D7B-0000F81EF32E}"); return ht; } /// <summary> /// 开始扫描 /// </summary> public Image ScanStart() { Image imgReturn = null; //检测扫描设备 DeviceManager manager = new DeviceManagerClass(); Device device = null; ImageFile imageFile = null; try { foreach (DeviceInfo info in manager.DeviceInfos) { if (info.Type != WiaDeviceType.ScannerDeviceType) continue; device = info.Connect(); break; } if (device == null) { MessageBox.Show("未检测到扫描设备，请检查设备电源以及数据连接线！"); return null; } Item item = device.Items[1]; CommonDialogClass cdc = new WIA.CommonDialogClass(); //开始扫描 imageFile = cdc.ShowTransfer(item, htFormtIDs["wiaFormatJPEG"].ToString(), true) as ImageFile; } catch (Exception ec) { MessageBox.Show("扫描出错！\n" + ec.Message.ToString()); return null; } //将获取到得图像转为Image if (imageFile != null) { var buffer = imageFile.FileData.get_BinaryData() as byte[]; using (MemoryStream ms = new MemoryStream()) { ms.Write(buffer, 0, buffer.Length); imgReturn = Image.FromStream(ms); } } else { return null; } return imgReturn; } #endregion }} |
实例化ScanOper类时，XP系统报错：应用程序中发生了无法处理的异常。如果单击“继续”......检索COM类工厂中CLSID为{E1C5D730-7E97-4D8A-9E42-BBAE87C2059F}的组件时失败，原因是出现以下错误：80040154
XP系统中安装了WIA驱动、.Net 3.5、.Net 4.0都不行。求助
