[SC] We work with the scanner

 using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Windows.Forms; using WIA; namespace Scanning { public class Scanner { public const string Config = "scanner.cfg"; private Device _scanDevice; private Item _scannerItem; private Random _rnd = new Random(); private Dictionary<string, object> _defaultDeviceProp; public bool IsVirtual; public Scanner() { try { LoadConfig(); } catch (Exception) { MessageBox.Show(" ,    "); Configuration(); } } public void Configuration() { try { var commonDialog = new CommonDialogClass(); _scanDevice = commonDialog.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, true); if (_scanDevice == null) return; var items = commonDialog.ShowSelectItems(_scanDevice); if (items.Count < 1) return; _scannerItem = items[1]; SaveProp(_scanDevice.Properties, ref _defaultDeviceProp); SaveConfig(); } catch (Exception e) { MessageBox.Show(e.Message, "   "); } } private void SaveProp(WIA.Properties props, ref Dictionary<string, object> dic) { if (dic == null) dic = new Dictionary<string, object>(); foreach (Property property in props) { var propId = property.PropertyID.ToString(); var propValue = property.get_Value(); dic[propId] = propValue; } } public void SetDuplexMode(bool isDuplex) { // WIA property ID constants const string wiaDpsDocumentHandlingSelect = "3088"; const string wiaDpsPages = "3096"; // WIA_DPS_DOCUMENT_HANDLING_SELECT flags const int feeder = 0x001; const int duplex = 0x004; if (_scanDevice == null) return; if (isDuplex) { SetProp(_scanDevice.Properties, wiaDpsDocumentHandlingSelect, (duplex | feeder)); SetProp(_scanDevice.Properties, wiaDpsPages, 1); } else { try { SetProp(_scanDevice.Properties, wiaDpsDocumentHandlingSelect, _defaultDeviceProp[wiaDpsDocumentHandlingSelect]); SetProp(_scanDevice.Properties, wiaDpsPages, _defaultDeviceProp[wiaDpsPages]); } catch (Exception e) { MessageBox.Show(String.Format("   :{0}{1}", Environment.NewLine, e.Message)); } } } public MemoryStream MemScan() { if ((_scannerItem == null) && (!IsVirtual)) { MessageBox.Show("  ,   !", "Info"); //return null; IsVirtual = true; } var stream = new MemoryStream(); if (IsVirtual) { if (_rnd.Next(3) == 0) { return null; } var btm = GetVirtualScan(); btm.Save(stream, ImageFormat.Jpeg); return stream; } try { var result = _scannerItem.Transfer(FormatID.wiaFormatJPEG); var wiaImage = (ImageFile)result; var imageBytes = (byte[])wiaImage.FileData.get_BinaryData(); using (var ms = new MemoryStream(imageBytes)) { using (var bitmap = Bitmap.FromStream(ms)) { bitmap.Save(stream, ImageFormat.Jpeg); } } } catch (Exception) { return null; } return stream; } private Bitmap GetVirtualScan() { const int imgSize = 777; var defBtm = new Bitmap(imgSize, imgSize); var g = Graphics.FromImage(defBtm); var r = new Random(); g.FillRectangle(new SolidBrush(Color.FromArgb(r.Next(0, 50), r.Next(0, 50), r.Next(0, 50))), 0, 0, imgSize, imgSize); // bg for (int i = 0; i < r.Next(1000, 3000); i++) { var den = r.Next(200, 255); var br = new SolidBrush(Color.FromArgb(den, den, den)); den -= 100; var pr = new Pen(Color.FromArgb(den, den, den), 1); var size = r.Next(1, 8); var x = r.Next(0, imgSize - size); var y = r.Next(0, imgSize - size); g.FillEllipse(br, x, y, size, size); g.DrawEllipse(pr, x, y, size, size); } g.DrawString(" ", new Font(FontFamily.GenericSerif, 25), Brushes.Aqua, new RectangleF(0, 0, imgSize, imgSize)); g.Flush(); return defBtm; } private void SaveConfig() { var settings = new List<string>(); settings.Add("[device]"); settings.Add(String.Format("DeviceID;{0}", _scanDevice.DeviceID)); foreach (IProperty property in _scanDevice.Properties) { var propstring = string.Format("{1}{0}{2}{0}{3}", ";", property.Name, property.PropertyID, property.get_Value()); settings.Add(propstring); } settings.Add("[item]"); settings.Add(String.Format("ItemID;{0}", _scannerItem.ItemID)); foreach (IProperty property in _scannerItem.Properties) { var propstring = string.Format("{1}{0}{2}{0}{3}", ";", property.Name, property.PropertyID, property.get_Value()); settings.Add(propstring); } File.WriteAllLines(Config, settings.ToArray()); } private enum loadMode {undef, device, item}; private void LoadConfig() { var settings = File.ReadAllLines(Config); var mode = loadMode.undef; foreach (var setting in settings) { if (setting.StartsWith("[device]")) { mode = loadMode.device; continue; } if (setting.StartsWith("[item]")) { mode = loadMode.item; continue; } if (setting.StartsWith("DeviceID")) { var deviceid = setting.Split(';')[1]; var devMngr = new DeviceManagerClass(); foreach (IDeviceInfo deviceInfo in devMngr.DeviceInfos) { if (deviceInfo.DeviceID == deviceid) { _scanDevice = deviceInfo.Connect(); break; } } if (_scanDevice == null) { MessageBox.Show("    "); return; } _scannerItem = _scanDevice.Items[1]; continue; } if (setting.StartsWith("ItemID")) { var itemid = setting.Split(';')[1]; continue; } var sett = setting.Split(';'); switch (mode) { case loadMode.device: SetProp(_scanDevice.Properties, sett[1], sett[2]); break; case loadMode.item: SetProp(_scannerItem.Properties, sett[1], sett[2]); break; } } SaveProp(_scanDevice.Properties, ref _defaultDeviceProp); } private static void SetProp(IProperties prop, object property, object value) { try { prop[property].set_Value(value); } catch (Exception) { return; } } } }