Returns the name of the class of an interface element.
char* IupGetClassName(Ihandle* ih); [in C] iup.GetClassName(ih: ihandle) -> (name: string) [in Lua]
ih: Identifier of the interface element.
Returns: the name of the class.
The following names are known:
"image" "button" "canvas" "dialog" "fill" "frame" "hbox" "item" "separator" "submenu" "label" "list" "menu" "radio" "text" "toggle" "vbox" "zbox" "multiline" "user" "matrix" "tree" "dial" "gauge" "val" "glcanvas" "tabs" "cells" "colorbrowser" "colorbar" "spin" "sbox" "cbox" "progressbar" "olecontrol"