ID Number: Q67248
3.00 3.10
WINDOWS
In the Microsoft Windows environment, when no running application
requires a custom control class, the class should be removed from
memory to free the system resources it uses.
If an application registers a control class for temporary use, the
application should use the UnregisterClass function when the control
is no longer needed. If the application is terminated, Windows
automatically removes any classes that the application registered;
therefore, explicit use of UnregisterClass is not required. However,
pairing calls to the RegisterClass and UnregisterClass functions is a
good programming practice.
Additional reference words: 3.00 3.10