Creates void element, which occupies an empty space.
It does not have a native representation.
Ihandle* IupSpace(void); [in C]
iup.space{} -> ih: ihandle [in Lua]
space() [in LED]
Returns: the identifier of the created element, or NULL if an error occurs.
WID (read-only): returns -1 if mapped.
SIZE, RASTERSIZE, EXPAND, FONT, POSITION, MINSIZE, MAXSIZE, THEME: also accepted.
When an IupFill is inside a IupVbox or IupHbox it will affect the expansion of the box because it is always expandable. Even when you set its size to a given value, it will still affect the layout, because it is always marked as an expandable element.
IupSpace will simply occupy a space in the layout. It does not have a natural size, it is 0x0 by default. It can be expandable or not, EXPAND will work as a regular element. The attributes SIZE and RASTERSIZE can be normally set.