Registering Icon Data

You can speed up access to frequently-used icon data by registering icons. The preferred way of registering icons is to use the function RegisterIconRefFromIconFile. This will make the icon data purgeable if you need to free up memory later. If you can't use the RegisterIconRefFromResource function, you can use the function RegisterIconRefFromIconFamily. To unregister icon data, use the function UnregisterIconRef.