Q Is there any other way to manipulate the controls, other than retrieving the
control objects using their object IDs?
A You can declare variables in the Control category. This basically gives you an
object that is the control’s MFC class, providing you with a direct way of altering
and interacting with the control. You can then call all of the C Wnd class functions
on the control, as you did to enable or disable and show or hide the controls in
your application, or you can call the control class methods, enabling you to do
things in the code that are specific to that type of control. For instance, if you add
another variable to the combo box control and specify that it is a Control category
variable, you can use it to add items to the drop-down list on the control.