ArcGIS Engine Developer Guide

APPLICATION DEVELOPMENT AND LICENSE INITIALIZATION
Step 3: Initialize the application
Step 4: Check extensions in and
out
Step 5: Shutdown
Step 1: Check product license
availability
Step 2: Check extension license
availability
If yes, proceed with checks for any other needed extensions. If not, discontinue
this attempt and restart initialization with any secondary level of allowable
product licensing.
3. Since Spatial extension functionality is also required for this application, check
whether a Spatial extension license is available for the ArcGIS Engine product
license.
If yes, proceed with checks for any other needed extensions. If not, discontinue
this attempt and restart initialization with any secondary level of allowable
product licensing.
4. In this case, no other extension licenses are needed. Proceed to the next step
in the initialization process.
5. Check out the ArcGIS Engine 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 attempt and
restart initialization with any secondary level of allowable product licensing.
6. Check out the 3D extension for the ArcGIS Engine product license. 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 secondary level of allowable product licensing.
7. Check out the Spatial extension for the ArcGIS Engine product license. 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 secondary level of allowable product licensing.
8. In this case, no other extension licenses are needed. If the extension licenses
are checked out, the application has been successfully configured with licenses.
9. The final step in the initialization process is ensuring that the licenses are
released when the application is shut down.
Attempting initialization with the ArcView product license
In this example, a secondary level of licensing is available if the first ArcGIS
Engine product level fails to initialize correctly. The application once again attempts
to initialize by following the defined process.
1. Check whether an ArcView product license is available. If yes, 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.
2. Determine whether a 3D Analyst extension license is available with the
ArcView product license. If yes, proceed with checks for any other needed
extensions. If not, discontinue this attempt and restart initialization with
any tertiary level of allowable product licensing.
3. Check whether an ArcGIS Spatial Analyst extension license is available with
the ArcView product license. If yes, since no other extensions are needed,
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.
266 • ArcGIS Engine Developer Guide