Is license available
Is license available {( license )} : Boolean
| Parameter | Type | Description | |
|---|---|---|---|
| license | Integer | → | Plug-in for which license validity testing is desired |
| Function result | Boolean | ← | True if plug-in is available, otherwise False |
This command is not thread-safe, it cannot be used in preemptive code.
Description
The Is license available command lets you find out the availability of a plug-in. It is useful, for instance, for displaying or hiding functions requiring the presence of a plug-in.
The Is license available command can be used in three different ways:
- The license parameter is omitted: in this case, the command returns False if the 4D application is in demonstration mode.
- You pass one of the constants of the “Is License Available” theme in the license parameter:
| Constant | Type | Value |
|---|---|---|
| 4D Client SOAP license | Integer | 808465465 |
| 4D Client Web license | Integer | 808465209 |
| 4D for OCI license | Integer | 808465208 |
| 4D ODBC Pro license | Integer | 808464946 |
| 4D REST Test license | Integer | 808465719 |
| 4D SOAP license | Integer | 808465464 |
| 4D View license | Integer | 808465207 |
| 4D Web license | Integer | 808464945 |
| 4D Write license | Integer | 808464697 |
In this case, the command returns True if the corresponding plug-in has a license available. The command takes into account any licenses attributed in Design mode or via the SET PLUGIN ACCESS command.
Is license available returns False if the plug-in is operating in demo mode.
- You pass the ID number of the plug-in “4BNX” resource directly in the license parameter. In this case, the command behaves as described above.
See also
CHANGE LICENSES
License info
Get plugin access
PLUGIN LIST
SET PLUGIN ACCESS