SDK Overview
GdTwain Pro SDK is a powerful, easy-to-use
ActiveX component that controls TWAIN devices such as scanners,
digital cameras and capture cards. It also provides a fully featured Image
Viewer control. Using GdTwain Pro SDK, you can control the complete
image acquisition process, scan images from an automatic document
feeder, clean up images and enhance images by applying filters such
as auto border removal, despeckle, automatic deskew and more.
You can save images to disk or upload them to an FTP server.
GdTwain Pro SDK can be used in any development environment that supports ActiveX/COM controls.
GdTwain Pro SDK includes 2 classes with over 500 functions.
TWAIN
Twain acquisition & Image processing control :
- Unicode Support
- Very easy to use and can be quickly and easily integrated with your application
- Use the included TWAIN device user interface or create your own
- Supports data source enumeration and selection
- Advanced image processing, including auto border removal, the ability to adjust brightness, contrast, saturation and gamma, and image rotation
- Capture an image to gdiplus or a DIB image handle
- Capture an image to an image or a PDF file
- Capture an image to the clipboard
- Capture an image to a byte array
- Capture an image to HBitmap
- Capture an image to an StdPicture object
- Create fast batch scanning processes
- Support for 1-bit, 4-bit, 8-bit, 16-bit, 24-bit, 32-bit, 48-bit and 64-bit color depth
- Image enhancement functions
- OCR features: create searchable PDFs with encryption, convert images to text, perform character recognition on a specific area *
- 1D Barcode Recognition features: detect & read more than 20 industrial barcode type **
- 2D DataMatrix Barcode Recognition features: detect & read more than 20 industrial barcode type ***
- Use TWAIN capabilities to detect & read barcode symbols, including Code 39/128/93, EAN-8/13, PostNet, PDF417, 2 of 5 Matrix and many more
- Convert from, and to, any color depth, from 1-bit to 64-bit
- Multiple color quantization and reduction algorithms
- Advanced text processing: add text with a semi transparency effect or draw rotated text
- Adjust the twain device's image resolution (DPI)
- Define a customised capture area
- Define the orientation of the acquired image
- Define the size of the acquired image
- Define the color depth and palette mode of the acquired image
- Define the brightness and contrast of the twain device
- Supports Automatic Document Feeder (ADF) controls for single and multiple page acquisition
- Supports duplex scanning
- Enable / disable ADF support
- Enable / disable AutoScan mode
- Enable / disable duplex scanning
- Enable / disable Automatic Deskew
- Enable / disable Automatic Rotation
- Enable / disable Automatic Border Detection
- Enable / disable Automatic Brightness
- Select the twain device pixel type: B/W Color, Gray color, RGB color, CMYK color
- Provides additional low level API, enabling you to obtain and set TWAIN 2.0 capabilities such as image rotation, image scaling and barcode detection
* Requires the optional GdPicture Tesseract Plugin for ActiveX.
** Requires the optional GdPicture 1D Barcode Recognition Plugin for ActiveX.
*** Requires the optional GdPicture DataMatrix Barcode Recognition Plugin for ActiveX.
GdViewer
Image & PDF Viewer control :
- Unicode Support.
- Image bitmap and vector viewer: a high-quality viewer class with multiple view modes
- Load and print single & multi-page images
- PDF Viewer
- Read multi-page Tiffs and navigate pages easily
- Display large image files
- Read binary data types such as IStream and IUnknown
- Load images from URLs
- Multiple image scaling algorithms, including Anti-aliasing, Bicubic and Nearest Neighbor Interpolation
- Support for 1-bit, 4-bit, 8-bit, 16-bit, 24-bit, 32-bit, 48-bit and 64-bit color palettes
- Import images from Clipboard, StdPicture, IPicture, HBitmap, and DIB and gdiplus handles
- Advanced rotation options: 90°, 180°, 270° and flip X or Y-axes
- Advanced and optimized printing features: print a range of pages from a multi-page file, print multi-page images in single print jobs, fit images to paper size
- Area processing
- User-defined display area
- Animated Gif viewer
- Built-in timer with TimerTick event
- Advanced scrollbar and autosize features
- Aspect Ratio Control
- Right-click pop-up menu, including tools, selection and zoom *
- Built-in tools including hand tool, pan and zoom, and rectangle selection
- Move and scroll across or down an image using the mouse
- Zoom enhance, zoom by height, by width, fit to page
- User-defined zoom and user-defined area zoom
- Perform multiple keyboard and mouse actions
- Change image zoom using the mouse wheel
- Smooth Scrolling
- Save and restore a specific position within an image (Image MAP system capability)
- GdViewerCnt: Image viewer container class. This is like a vb picturebox in that it can contain other controls placed in it
- How to acquire multiple images from an automatic document feeder with Visual Basic or VBA and save they to multipage tif file.
- How to acquire multiple images from an automatic document feeder with Visual Foxpro and save they as independent jpeg images.
You can find more samples HERE
Microsoft Windows (32-bit or 64-bit): 98 / NT4 / ME / 2000 / XP / 2003 / 2008 / VISTA / WINDOWS 7
GdTwain PRO SDK
2.8.8 (21 February 2011)
| License | Price/License (USD) | |
|---|---|---|
| 1 Developer | 549.00 | 2 Developers | 702.72 | package | 3 Developers | 1054.08 | package | 4 Developers | 1405.44 | package |
| 5 Developers | 1756.80 | package |
| Site | 2196.00 | site |
All licenses include royalty-free distribution with your application or system.
License price is the same for server- or desktop- deployment, we do not charge extra fee for server deployment.
Software license key will continue to be valid for all future 1.X versions of GdTwain Pro SDK with free upgrades.
ActiveX licensing
Per developer licenses: This license type entitles the specified number of developer (1,2,3,4,5) within a single organization to write software with access to GdPicture Pro Imaging SDK.
Site license: This license entitles an unlimited number of developers in a single organization, at a single physical address, to write software with access to GdPicture Pro Imaging SDK.
