IupUser

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 for additional elements, but you can use it to create an Ihandle* to store private attributes.

It is also a void container. Its children can be dynamically added using IupAppend or IupInsert.

Creation

Ihandle* IupUser(void);

Returns: the identifier of the created element, or NULL if an error occurs.

Attributes

CLEARATTRIBUTES (write-only, non-inheritable): it will clear all attributes stored internally and remove all references.