| GObject Reference Manual | 
|---|
gobject-querygobject-query — display a tree of types  | 
gobject-query   froots  [options...]
gobject-query   tree  [options...]
gobject-query takes a mandatory argument that specifies whether it should iterate over the fundamental types or print a type tree.
froots | 
iterate over fundamental roots  | 
tree | 
print type tree  | 
-r type | 
specify the root type  | 
-n | 
don't descend type tree  | 
-b string | 
specify indent string  | 
-i string | 
specify incremental indent string  | 
-s number | 
specify line spacing  | 
-h, --help | 
Print brief help and exit.  | 
-v, --version | 
Print version and exit.  |