This command provides commands for checking the semantic correctness of the project. The status of the most recent compilation will be regarded. If you have changed the project in the mean time, do a recompilation in order to get an up to date check result. Otherwise you will get an appropriate warning in the message window.
The results will be displayed in the message window.
In the project options, category 'Build', you can define these semantic checks to be done at each compilation of the project automatically.