With .NET PDF Viewer SDK , the developer can easily add PDF, TIFF viewer and Continuous scroll (like in Adobe Reader) capability to their application.
For Windows Developers who need to audio capture, record from Microphone or Playback Device, add pitch effects for C#, C++ , VB.net , VB, Delphi, VFP, MS Access.
Platform : Windows 10, Windows 8, Vista, Windows 7, XP
For Windows Developers who need to capture image from scanner, digital camera or capture card that has a TWAIN device driver with C , C#, VB.NET , VB, Delphi, Vfp, MS Access.
Step 1: To install the Scanner SDK ActiveX Control, begin by launching the setup file (http://www.viscomsoft.com/demo/scannersetup.exe). Select the desired installation folder for the Scanner ActiveX and continue with the installation on your development computer.
Step 2: Create New Visual C# Project, select Windows Application.
Step 3: The next step is to install Scanner ActiveX in ToolBox. Select Toolbox, select Components item, right click mouse button, select Choose Items...
Step 4: Select COM Components tab, select Scanner ActiveX Control , click OK.
Step 5: Now you will see the Scanner ActiveX's icon on toolbox, drag it to form.
Step 6: Add Combo box, two buttons , label and textbox on form. Like the following picture.
Step 7: change the name property of textbox to "txttotalpage" Step 8: In form load event, add the following code to add the image source item to combo box. short iCount = this.axScanner1.GetNumImageSources(); for (short i = 0; i < iCount; i ) { this.comboBox1.Items.Add(this.axScanner1.GetImageSourceName(i)); } if (this.comboBox1.Items.Count > 0) this.comboBox1.SelectedIndex = 0;Step 9: add the following code in Scan button click event , assume your scanner support Auto Feeder, if not set FeederEnabled = false, make sure you set BufferResizeMode = false , we need keep the barcode quality , so do not resize the buffer. this.axScanner1.SelectImageSourceByIndex((short)this.comboBox1.SelectedIndex); this.axScanner1.FeederEnabled = true; this.axScanner1.DPI = 200; this.axScanner1.SetCaptureArea(0, 0, 0, 0); this.axScanner1.BufferResizeMode = false; this.axScanner1.Scan();
Step 10: select the Scanner Control, Click Event icon in Properties Windows, double EndScan Event to add the EndScan Event hander.Step 11: In EndScan event handler , add the following code to get the total scanned page to textbox txttotalpage.Text = this.axScanner1.TotalPage.ToString();Step 12: Add the following code on "Read Barcodes for All Pages" button click event. string str1=""; string strTmp = "";
axScanner1.BarCodeReadScanMultiple = true; axScanner1.BarCodeReadScanWithoutRotation = true; axScanner1.BarCodeReadScan45Rotation = true; axScanner1.BarCodeReadScan45CouterRotation = true; axScanner1.BarCodeReadScan90Rotation = true; axScanner1.BarCodeReadScanAccuracy = true;
long ibarcodeCount = 0; long ibarcodeCountforpage = 0;
for (int i = 0; i < axScanner1.TotalPage; i ) {
axScanner1.SetActivePageNo((short)(i 1));
ibarcodeCountforpage = axScanner1.BarCodeReadFullPage();
if (ibarcodeCountforpage < 1) { MessageBox.Show("No barcodes found, try scan to high DPI or set the specific area for detect the barcode"); break; }
for (int j = 0; j < ibarcodeCountforpage; j ) { strTmp = axScanner1.BarCodeGetType((short)j).ToString() " score:" axScanner1.BarCodeGetScore((short)j).ToString() " value:" axScanner1.BarCodeGetValue((short)j).ToString();
strTmp = strTmp "rn" strTmp; }
ibarcodeCount = ibarcodeCount ibarcodeCountforpage;
} str1 = "Total " ibarcodeCount.ToString() " BarCode detected" "rn" strTmp;
MessageBox.Show(str1); }Step 13: Now run the project, select the scanner device, click Scan button, after scanned all pages, click "Read Barcodes for All Pages" buttonDownload the C# How to Read Barcodes from scanned documents sample source code
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