VALUE (non-inheritable)

Its behavior is element-dependent. It is often used to change the control's main value, such as the text of an IupText. See each element's documentation for the meaning of VALUE on that element.

For the IupRadio and IupZbox, it is the child selected among the others in the composition. Set it to the name of a child, previously associated with IupSetHandle. The child can also be set or retrieved by its handle through the VALUE_HANDLE attribute.