If i am not mistaken VRAY_DemoBox example should take into account BBOX values
in all 3 modes (procedural, procedural explicit bounds, procedural Render SOP bounds),
but it does not
If i`ll put object into “Render SOP bounds” mode i will get this:

Argc = 1

Argv0 = mytest
Argv1 = (null)
Argv2 = -0.8385
Argv3 = 0.5
Argv4 = -M
Argv5 = 3.5205
Argv6 = 0.8385
Argv7 = 0.5

So….the question is:
where is -m option….as well as BBXMIN, and why argc equal 1

H7.0.231 W2k