Function: minibuffer-depth
minibuffer-depth is a function defined in minibuf.c.
Signature
(minibuffer-depth)
Documentation
Return current depth of activations of minibuffer, a nonnegative integer.
Probably introduced at or before Emacs version 18.
Source Code
// Defined in /usr/src/emacs/src/minibuf.c
{
return make_fixnum (minibuf_level);
}