ArcGIS Engine Developer Guide

APPLICATION DEVELOPMENT AND LICENSE INITIALIZATION
Step 3: Initialize the application
Step 4: Check extensions in and
out
The checkout of licenses may fail even though
the availability check was successful. This is
particularly possible in cases in which Desktop
Concurrent licenses were initially available but
may have since been checked out by another
application.
Step 5: Shutdown
Step 1: Check product license
availability
Step 2: Check extension license
availability
Step 3: Initialize the application
Step 4: Check extensions in and
out
The checkout of licenses may fail even though
the availability check earlier in the process was
successful. This is particularly possible in cases
where Desktop Concurrent licenses—instead of
Single Use ones—were initially available but
may have since been checked out by another
application.
Step 5: Shutdown
4. Check out the ArcView product license by initializing the application. If the
license checked out, proceed to the next step in the initialization process. If
not, discontinue this attempt and restart initialization with any tertiary level
of allowable product licensing.
5. Check out the 3D Analyst extension. If the license checked out, proceed with
checkout for any other needed extensions. If the license failed to check out,
discontinue this attempt and restart initialization with any tertiary level of
allowable product licensing.
6. Check out the ArcGIS Spatial Analyst extension. Since no other extension
licenses are needed, if the licenses are checked out, the application has been
successfully configured with licenses. If not, discontinue this attempt and
restart initialization with any tertiary level of allowable product licensing.
7. The final step in the initialization process is ensuring that the licenses are
released when the application is shut down.
Attempting initialization with the ArcEditor product license
In this example, if both the first (ArcGIS Engine) and second (ArcView) product
levels fail to initialize correctly, a third level of licensing—ArcEditor—is available.
The application makes a final attempt to initialize by following the defined
process.
1. Check whether an ArcEditor product license is available. If yes, proceed to
the next step in the initialization process. If not, discontinue this final attempt.
The application cannot run successfully at this time.
2. Determine whether a 3D Analyst extension license is available with the
ArcEditor product license. If yes, proceed with checks for any other needed
extensions. If not, discontinue this final attempt. The application cannot run
successfully at this time.
3. Check whether an ArcGIS Spatial Analyst extension license is available with
the ArcEditor product license. If yes, since no other extensions are needed,
proceed to the next step in the initialization process. If not, discontinue this
final attempt. The application cannot run successfully at this time.
4. Check out the ArcEditor product license by initializing the application. If the
license checked out, proceed to the next step in the initialization process. If
the license failed to check out, discontinue this final attempt. The application
cannot run successfully at this time.
5. Check out the 3D Analyst extension. If the license checked out, proceed with
checkout for any other needed extensions. If the license failed to check out,
discontinue this final attempt. The application cannot run successfully at this
time.
6. Check out the ArcGIS Spatial Analyst extension. Since no other extension
licenses are needed, if the licenses are checked out, the application has been
successfully configured with licenses. If not, discontinue this final attempt.
The application cannot run successfully at this time.
7. The final step in the initialization process is ensuring that the licenses are
released when the application is shut down.
Chapter 5 • Licensing and deployment • 267