Element: treenode.class_image[2]
Element: treenode.class_image[2]string
The class image file names for the treenode class of treenode.
When a new node is added to a tree window, if no images are specified, class values are used. There are 2 types of default image values, one for a "class" node and one for a "value" node. If the new node is a class node then <class>.class_image is used, where <class> is the treenode class of the new node.
Two images are permitted, the first displayed when the node is contracted, the second displayed when the node is expanded.
These values are redefinable via a treenode class name but not via a treenode instance name, e.g. if a treenode "mynode" is of class "database_t", then database_t.class_image can be set, but mynode.class_image may not.
Images in tree windows are all displayed with the same dimensions, typically 16 x 16 pixels. They are scaled if necessary.