#include "l_bitmap.h"
L_LTKRN_API L_INT L_SetLicenseBuffer(pLicenseBuffer, nSize, pszDeveloperKey)
L_UCHAR* pLicenseBuffer; |
name of license file |
L_SSIZE_T nSize; |
size of license buffer |
L_TCHAR* pszDeveloperKey; |
developer key |
Sets the runtime license for LEADTOOLS and unlocks support for optional features such as LEADTOOLS Imaging Pro, Document and Medical Imaging capabilities, or PDF support..
Parameter |
Description |
pLicenseBuffer |
Pointer to a memory buffer that contains the entire LEADTOOLS runtime license. |
nSize |
The size, in bytes, of the buffer pointed to by pLicenseBuffer. |
pszDeveloperKey |
Character string containing the developer key. |
SUCCESS |
The runtime license was valid. |
< 0 |
An error occurred. Refer to Return Codes. |
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.
In order to obtain a runtime license and developer key, you must contact LEAD. For more information, refer to About LEADTOOLS Runtime Licenses.
For information about LEADTOOLS Document/Medical capabilities, contact LEAD.
To determine if support for optional features has been unlocked, use the L_IsSupportLocked function.
To set the runtime license from a disk file instead of a memory buffer, use the L_SetLicenseFile function.
Required DLLs and Libraries
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64, Linux.
Functions: |
L_SetLicenseFile, L_IsSupportLocked, L_VersionInfo, L_EnableLicenseLogging |
Topics: |
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Set the LEADTOOLS runtime licnese from a memory buffer.
#define MY_LICENSE_FILE L_TEXT("d:\\temp\\TestLic.lic")
#define MY_DEVELOPER_KEY L_TEXT("xyz123abc")
L_INT SetLicenseBufferExample(L_VOID)
{
/* read the file */
HANDLE hFile = CreateFile(MY_LICENSE_FILE, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
DWORD dwSize = GetFileSize(hFile, NULL);
L_UCHAR* pBuf = (L_UCHAR*)malloc(dwSize);
DWORD dwRead=0;
ReadFile(hFile, (LPVOID)pBuf, dwSize, &dwRead, NULL);
CloseHandle(hFile);
/* set the runtime license */
L_INT nRet = L_SetLicenseBuffer(pBuf, dwRead, MY_DEVELOPER_KEY);
free(pBuf);
/* check for unlocked support */
if (L_IsSupportLocked(L_SUPPORT_MEDICAL))
MessageBox(NULL, L_TEXT("Medical Locked\n"), L_TEXT(""), MB_OK);
else
MessageBox(NULL, L_TEXT("Medical Unlocked\n"), L_TEXT(""), MB_OK);
return nRet;
}
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