I've got a scripting problem that I'm not sure how to resolve. The script I've written runs cleanly when in use, but whenever I've used it, I get a couple of error dialogs as Creator is closing.

Note the errors never come up when creator is running, only when it's closing down.

The first one is DuumyGLWnd: mgfltx.exe - Application error. When I OK that one, I then get a pure virtual function call error (R6025). When I OK that one I get another DummyGLWnd error. Only when I OK that third error is Creator finally shut down.

The script is designed to parse a model and turn off sections of it based on some of our custom attribution. eg if we have a model with 20 different colour schemes in it, only make one of them visible without having to hunt through the hierarchy and do it manually.

Any ideas ?

#!/usr/local/bin/python

# Set up hex masks for status box
MMBX_OK = 0x00000001
MMBX_OKCANCEL = 0x00000002
MMBX_YESNO = 0x00000004
MMBX_YESNOCANCEL = 0x00000008
MMBX_STATUS = 0x00000100
MMBX_WARNING = 0x00000200
MMBX_ERROR = 0x00000400
MMBX_QUESTION = 0x00000800

# These lines tell the script where to find our custom attributes by byte offset.
# This info comes from the .h files
EP2_SITEID = "EP2DATA"
eEp2SwitchExt=264
eEp2SwitchSelectNum=2098
ep2SwitchExt=ddGetUCode(EP2_SITEID, eEp2SwitchExt)
ep2SwitchSelectNum=ddGetUCode(EP2_SITEID, eEp2SwitchSelectNum)

MEL_SITEID = "MELDATA"
eMelSwitchExt=260
eMelSwitchSwitchNumGlobal=2059
melSwitchExt=ddGetUCode(MEL_SITEID, eMelSwitchExt)
melSwitchSwitchNumGlobal=ddGetUCode(MEL_SITEID, eMelSwitchSwitchNumGlobal)

# Pop up a box asking for the select number
s,usercontaminant = mgPromptDialogInteger (None, "Enter contaminant number (1 - 8)", 1)
if usercontaminant <1:
    usercontaminant = 1
if usercontaminant >8:
    usercontaminant = 8

def ToggleDisplay (db, parent, rec, userData):
    if (mgGetCode (rec) == userData):
        return MG_TRUE
    return MG_FALSE

db = mgGetCurrentDb()
code = fltSwitch
mgDeselectAll (db)
nodes = mgFind (db, ToggleDisplay, code, 0)

num = mgGetRecListCount (nodes)
name = ddGetLabel(code)

message = "Changed %d %s%s" % (num,name,('\0' if num==1 else 'es'))
mgSendMessage (MMSG_STATUS, message)
# Uncomment this next line if you want a popup confirmation dialog
# mgMessageDialog(None, "Title", "%s"% message, MMBX_OK+MMBX_WARNING)

rec,matrix = mgGetNextRecInList (nodes)
while rec != None:
    contam = 0
    if mgHasAtt(rec, ep2SwitchExt):
        contam = mgGetAttList (rec, ep2SwitchSelectNum)[2]
    elif mgHasAtt(rec, melSwitchExt):
        contam = mgGetAttList (rec, melSwitchSwitchNumGlobal)[2]
    if (contam !=usercontaminant):
        mgSetAttList (rec, fltIOn, 0)
    elif contam >0:
        mgSetAttList (rec, fltIOn, 1)
    rec,matrix = mgGetNextRecInList (nodes)