Acquire an Image for Barcode Recognition

Image Options

Barcode Xpress works with 1-bit black and white images, 8-bit grayscale images, and 24-bit color images. To convert other image formats use the ImagXpress ColorDepth method or other methods with the included ImagXpress component. If you use ImageGear, use the ConvertColorSpace method.

C++ Example - Minimum C++ code to load an image using Accusoft.ImagXpress13.ActiveX for a 32-bit environment	Copy Code
//load a 1BPP, black and white image into the ImagXpress control m_pImagXpress->FileName = “C:\\testbarcodeimage.tif”; // Copy the hDib long hDib = m_pImagXpress->CopyDIB(); // Analyze the barcode m_pBarcodeXpress->AnalyzehDib(hDib); // Free the hDib GlobalFree(LongToHandle(hDib));

C++ Example - Minimum C++ code to load an image using Accusoft.ImagXpress13.ActiveX for a 32-bit environment

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      //load a 1BPP, black and white image into the ImagXpress control
      m_pImagXpress->FileName = “C:\\testbarcodeimage.tif”;

      // Copy the hDib
      long hDib = m_pImagXpress->CopyDIB();

      // Analyze the barcode
      m_pBarcodeXpress->AnalyzehDib(hDib);

      // Free the hDib
      GlobalFree(LongToHandle(hDib));

C++ Example - Minimum C++ code to load an image using ImageGear	Copy Code
// Create an ImageGear page GearCORELib::IIGPagePtr page; page = g_pIGCore->CreatePage(); // Load the page from file m_pIGFormats->LoadPageFromFile(page, fileName, 0); // Export the page to a dib GearCORELib::IIGPlatformDIBPtr platformDib = page->PlatformDIBExport(GearCORELib::IG_DIB_EXPORT_FORMAT_WINDOWS, false, 0, 0, page->ImageWidth, page->ImageHeight, 0); HGLOBAL hDib = LongToHandle(platformDib->DIBPtrGet()); // Read the barcodes pBarcodeXpress->AnalyzehDib(HandleToLong(hDib));

C++ Example - Minimum C++ code to load an image using ImageGear

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      // Create an ImageGear page
      GearCORELib::IIGPagePtr page;
      page = g_pIGCore->CreatePage();

      // Load the page from file
      m_pIGFormats->LoadPageFromFile(page, fileName, 0);

      // Export the page to a dib
      GearCORELib::IIGPlatformDIBPtr platformDib = page->PlatformDIBExport(GearCORELib::IG_DIB_EXPORT_FORMAT_WINDOWS, false, 0, 0, page->ImageWidth, page->ImageHeight, 0);
      HGLOBAL hDib = LongToHandle(platformDib->DIBPtrGet());

      // Read the barcodes
      pBarcodeXpress->AnalyzehDib(HandleToLong(hDib));

See the Recognize a Barcode topic for information on recognition.

See the Overview topic for code examples on acquiring barcodes.