Sets the runtime license for LEADTOOLS and unlocks support for optional features such as LEADTOOLS Document and Medical Imaging capabilities, or PDF support.
static L_INT LSettings::SetLicenseFile(pszLicenseFile, pszDeveloperKey)
Character string containing the name of the LEADTOOLS runtime license file to load.
Character string containing the developer key.
|SUCCESS||The function was successful.|
|< 0||An error occurred. Refer to Return Codes.|
Before calling this function, call LBase::LoadLibraries(LT_KRN).
You must use this function to set the runtime license for LEADTOOLS and to unlock support for any optional features that you have licensed. If you do not set a runtime license, your application will display a "nag" message dialog at runtime, indicating that you have developed the application without a valid runtime license.
NOTE: In order to obtain a runtime license and developer key, you must contact LEAD. For more information, refer to About LEADTOOLS Deployment Licenses.
For information about LEADTOOLS Document/Medical capabilities, contact LEAD.
To determine if support for optional features has been unlocked, use the LSettings::IsSupportLocked function.
To set the runtime license from a memory buffer instead of a disk file, use the LSettings::SetLicenseBuffer function
NOTE: To avoid receiving WRPERR_LTKRN_DLL_NOT_LOADED return value, ensure that LBase::LoadLibraries(LT_KRN) is called prior to calling this function.
#define MY_LICENSE_FILE L_TEXT("d:\\temp\\TestLic.lic")
#define MY_DEVELOPER_KEY L_TEXT("xyz123abc")
/* set the runtime license */
/* check for unlocked support */
MessageBox(NULL, L_TEXT("Medical Locked\n"), L_TEXT(""), MB_OK);
MessageBox(NULL, L_TEXT("Medical Unlocked\n"), L_TEXT(""), MB_OK);
Medical Web Viewer .NET
.NET, Java, Android, and iOS/macOS Assemblies
C API/C++ Class Libraries