References ▼
Files for redistribution are installed by the LEADTOOLS setup. For more information on the installation directory structure, refer to Installation Directory.
Note: You may not copy or redistribute any of the following files without obtaining the proper license. In some cases, the license is included with your initial purchase of LEADTOOLS. In other cases, you must obtain a license from a third party or enter into a royalty agreement with LEAD to obtain the proper license. For these special licensing situations, see the notes below accompanying the specific file.
Note: You may not distribute the header files with your application, and you may not provide software development capabilities in your application.
LTKRN is required for ALL C API applications.
LTKRN and LTWVC are required for ALL C++ Class Library applications.
Note:
Most of the LEADTOOLS Windows DLLs are compiled with Visual Studio 2017 and are linked statically to the Microsoft Visual C++ 2017 Runtime.
The Microsoft Visual C++ 2017 Redistributable Package cannot be installed on some versions of Windows.
For supported versions, see Choosing a Deployment Method and Update for Universal C Runtime in Windows .
The Microsoft Visual C++ 2017 Runtime also requires the Windows Universal CRT library, which is distributed as part of Windows 10.
For information on how to redistribute the universal CRT, see Introducing the Universal CRT.
Only the following DLLs are compiled with requirements for specific versions of the Microsoft Visual C++ Runtime:
Note: For more information about distributing the Microsoft C/C++ runtime files, refer to: https://docs.microsoft.com/en-us/visualstudio/productinfo/2017-redistribution-vs.
The following table summarizes the files you must include with your distribution. Most files in the table are optional. These files are referred to as "Redistributables" in the License Agreement.
| Redistributables | Explanation | Win32 Platforms | x64 Platforms |
|---|---|---|---|
| LTTWN | TWAIN support. LTTWN is the LEADTOOLS TWAIN Support DLL. | DLL: | DLL: |
| Lttwnu.dll | Lttwnx.dll | ||
| LEADTOOLS supports both v1.9 and v2.x of the TWAIN specification. | |||
| For more information, refer to | Library: | Library: | |
| Setting which TWAIN Specification Version to Use. | Lttwn_u.lib | Lttwn_x.lib | |
| Some scanner drivers are only supported in a 32-bit environment | |||
| and cannot interact with a scanner in a 64-bit process application. | Also requires the | Also requires the | |
| LEAD provides the LEADTOOLS THUNK utility to work around this | following files | following files | |
| limitation. Note that if this utility is used, additional files | whenever the | whenever the | |
| need to be included with your application when distributing it. | LEADTOOLS THUNK | LEADTOOLS THUNK | |
| For more information, refer to the | utility is being used: | utility is being used: | |
| Using the LEADTOOLS THUNK Utility with TWAIN topic. | |||
| ltthunkserver.exe (this | ltthunkserver.exe (this | ||
| must be registered) | must be registered) | ||
| ltthunkutlu.dll | Ltthunkutlx.dll | ||
| lttwnthunku.dll | lttwnthunku.dll | ||
| Lttwnu.dll | Lttwnu.dll | ||
| Ltkrnu.dll | Ltkrnu.dll | ||
| Ltfilu.dll | Ltfilu.dll | ||
| Lfbmpu.dll | Lfbmpu.dll | ||
| Lfcmpu.dll | Lfcmpu.dll | ||
| Lfrawu.dll | Lfrawu.dll | ||
| Lftifu.dll | Lftifu.dll |
| Description | |
|---|---|
| Application-Specific | For LEADTOOLS SDK core redistributables requirement of the exact assemblies and libraries to use on a specific platform and application, refer to the Files to be Included. |
| Application-Java-Specific | For LEADTOOLS SDK core redistributables requirement of the exact assemblies and libraries to use on Java platforms and applications, refer to the Files to be Included and Files to be Included with your Java Application. |
| Assembly Directory | For LEADTOOLS SDK installation directory information, refer to Installation Directory. |
| Licensing | For licensing information, refer to LEADTOOLS Runtime Licensing and LEADTOOLS Runtime Licensing FAQ |