Getting Started
Leadtools.Services.Twain Getting Started (WCF)
Summary
For pointers to sample programs that demonstrate many features, see the table below:
.NET
Redistributables Paths
| Path |
Target Platform |
| <installdir>\Bin\net |
.NET 6+ |
| Assembly - Class/Namespace |
Comments |
| Leadtools.Services.Twain.DLL - Leadtools.Services.Twain |
Contains classes, interfaces, and delegates to implement TWAIN services. |
Dependencies
| Library |
Description |
Dependencies |
| Leadtools.Services.Twain.dll |
Core Library |
Leadtools.dll |
Sample Programs
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| Fast TWAIN |
\Examples\Scanning\DotNet\FastTwainDemo\net |
\Bin\net\FastTwainDemo_Original.exe |
Demonstrates Fast Twain scanning support. Analyzes the TWAIN source, considering the requested bits per pixel, image type and compression, and finds the best compression type, transfer mode and buffering schemes to get the best performance possible. |
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN |
\Examples\Scanning\DotNet\TwainDemo\net |
\Bin\net\TwainDemo_Original.exe |
Demonstrates TWAIN scanning features. - Select TWAIN source
- Acquire images from TWAIN sources
- Display images acquired from TWAIN sources
- Save images acquired from TWAIN sources
|
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN High Level |
\Examples\Scanning\DotNet\TwainHighDemo\net |
\Bin\net\TwainHighDemo_Original.exe |
Demonstrates the high-level LEADTOOLS TWAIN scanning features. - Select TWAIN source
- Acquire images from TWAIN sources
- Display images acquired from TWAIN sources
- Save images acquired from TWAIN sources
|
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN Multi-Page |
\Examples\Scanning\DotNet\TwainMultipageDemo\net |
\Bin\net\TwainMultiPageDemo_Original.exe |
Demonstrates the multi-page scanning with LEADTOOLS TWAIN scanning features. - Select TWAIN source
- Acquire images from TWAIN sources
- Display images acquired from TWAIN sources
- Save images acquired from TWAIN sources
|
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN With Barcode Separator |
\Examples\Scanning\DotNet\TwainWithBarcodeSeparatorDemo\net |
\Bin\net\TwainWithBarcodeSeparatorDemo_Original.exe |
Demonstrates TWAIN scanning and barcode separation feature. -
Scans pages from a TWAIN source and saves the acquired pages to multi-page TIFF files. Uses the LEADTOOLS barcode engine to search for Code128 barcodes on the pages. If a user-specified barcode string is detected, the separator is saved to a new TIFF file, which is appended with all subsequent pages until a new separator is detected. |
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| WIA |
\Examples\Scanning\DotNet\WiaDemo\net |
\Bin\net\WiaDemo_Original.exe |
Demonstrates WIA scanning features. - Select WIA source
- Acquire images from WIA sources
- Display images acquired from WIA sources
- Save images acquired from WIA sources
|
| Demo Name |
Source Code Path |
Description |
| Leadtools.WebScanning.Plugin |
\Examples\Scanning\DotNet\WebScanning.Plugin\net |
ActiveX plugin for Internet Explorer to start Leadtools.WebScanning.Host application. This plugin is registered in WebScanning MSI installation process. |
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| Leadtools.WebScanning.Host |
\Examples\Scanning\DotNet\WebScanning.Host\net |
\Bin\net\Leadtools.WebScanning.Host_Original.exe |
Hosts Leadtools.Services.Twain service. A custom application url is used for lunaching this application from browsers.
Use "Utils.RegisterAppUrl" method to register a custom application url (for details, please check the Main method implementation of this demo in Program.cs ). For Internt Explorer: an ActiveX plugin (Leadtools.WebScanning.Plugin.dll) is used for launching this application. |
.NET Framework
Redistributables Paths
| Path |
Target Platform |
| <installdir>\Bin\DotNet4\Win32 |
x86 .NET 4 or 4.5 |
| <installdir>\Bin\DotNet4\x64 |
x64 .NET 4 or 4.5 |
| Assembly - Class/Namespace |
Comments |
| Leadtools.Services.Twain.DLL - Leadtools.Services.Twain |
Contains classes, interfaces, and delegates to implement TWAIN services. |
Dependencies
| Library |
Description |
Dependencies |
| Leadtools.Services.Twain.dll |
Core Library |
Leadtools.dll |
Sample Programs
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| Fast TWAIN |
\Examples\Scanning\DotNet\FastTwainDemo\fx |
\Bin\DotNet4\<Win32/x64>\FastTwainDemo_Original.exe |
Demonstrates Fast Twain scanning support. Analyzes the TWAIN source, considering the requested bits per pixel, image type and compression, and finds the best compression type, transfer mode and buffering schemes to get the best performance possible. |
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN |
\Examples\Scanning\DotNet\TwainDemo\fx |
\Bin\DotNet4\<Win32/x64>\TwainDemo_Original.exe |
Demonstrates TWAIN scanning features. - Select TWAIN source
- Acquire images from TWAIN sources
- Display images acquired from TWAIN sources
- Save images acquired from TWAIN sources
|
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN High Level |
\Examples\Scanning\DotNet\TwainHighDemo\fx |
\Bin\DotNet4\<Win32/x64>\TwainHighDemo_Original.exe |
Demonstrates the high-level LEADTOOLS TWAIN scanning features. - Select TWAIN source
- Acquire images from TWAIN sources
- Display images acquired from TWAIN sources
- Save images acquired from TWAIN sources
|
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN Multi-Page |
\Examples\Scanning\DotNet\TwainMultipageDemo\fx |
\Bin\DotNet4\<Win32/x64>\TwainMultiPageDemo_Original.exe |
Demonstrates the multi-page scanning with LEADTOOLS TWAIN scanning features. - Select TWAIN source
- Acquire images from TWAIN sources
- Display images acquired from TWAIN sources
- Save images acquired from TWAIN sources
|
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| TWAIN With Barcode Separator |
\Examples\Scanning\DotNet\TwainWithBarcodeSeparatorDemo\fx |
\Bin\DotNet4\<Win32/x64>\TwainWithBarcodeSeparatorDemo_Original.exe |
Demonstrates TWAIN scanning and barcode separation feature. -
Scans pages from a TWAIN source and saves the acquired pages to multi-page TIFF files. Uses the LEADTOOLS barcode engine to search for Code128 barcodes on the pages. If a user-specified barcode string is detected, the separator is saved to a new TIFF file, which is appended with all subsequent pages until a new separator is detected. |
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| WIA |
\Examples\Scanning\DotNet\WiaDemo\fx |
\Bin\DotNet4\<Win32/x64>\WiaDemo_Original.exe |
Demonstrates WIA scanning features. - Select WIA source
- Acquire images from WIA sources
- Display images acquired from WIA sources
- Save images acquired from WIA sources
|
| Demo Name |
Source Code Path |
Description |
| Leadtools.WebScanning.Plugin |
\Examples\Scanning\DotNet\WebScanning.Plugin\fx |
ActiveX plugin for Internet Explorer to start Leadtools.WebScanning.Host application. This plugin is registered in WebScanning MSI installation process. |
| Demo Name |
Source Code Path |
Pre-Compiled Executable Path |
Description |
| Leadtools.WebScanning.Host |
\Examples\Scanning\DotNet\WebScanning.Host\fx |
\Bin\DotNet4\<Win32/x64>\Leadtools.WebScanning.Host.exe |
Hosts Leadtools.Services.Twain service. A custom application url is used for lunaching this application from browsers.
Use "Utils.RegisterAppUrl" method to register a custom application url (for details, please check the Main method implementation of this demo in Program.cs ). For Internt Explorer: an ActiveX plugin (Leadtools.WebScanning.Plugin.dll) is used for launching this application. |
See Also
Reference
Introduction
Leadtools.Services.Twain Namespace
Web Scanning Framework
Version History
Leadtools.Services.Twain Assembly Changes
