IUP::User - [special] user element which is not associated to any interface element
Creates a user element in IUP, which is not associated to any interface element. It is used to map an external element to a IUP element. Its use is usually done by CPI elements, but you can use it to create an Ihandle* to store private attributes.
$user = IUP::User->new();
Returns: the identifier of the created element, or
undef if an error occurs.
NOTE: You can pass to
CALLBACKNAME=>\&func pairs relevant to this element - see IUP::Manual::02_Elements.
It will clear all attributes stored internally and remove all references.
The element IUP::User is used in the following sample scripts:
The original doc: iupuser.html