The VB IDE can be changed, but it requires restarting the program.  This is
because the API styles used to create an MDI and SDI differ, and can not
change once the window class has been registered on startup. VB does not
provide for this somewhat dynamic setting of the MDI Child property,
because the class and createwindow vars are determined from the design-time
properties, and compiled as such into the final app.

--
Randy Birch, MVP Visual Basic

Moderator, Fidonet Visual Basic Programmer's Conference
VBnet, The Visual Basic Developers Resource Centre
http://www.*-*-*.com/

: Hi doug,
:
: in fact I just want to store my form in a vb class and when I want to
: show it I want to choose if its an MDIChild or not.
:
: for example you can change your configuration of the IDE of Visual Basic
: to have it in SDI. all the modern application can be excuted in SDI or
: MDI mode (visual basic, lotus notes....)
:
: if it's still not clear, ask me more information
:
: david
:
:

Hi David:

I guess, what you could do is have duplicate forms, one MDI the other not.
Of course this would probably take up a lot of resources and more than
likely
double the size of your exe (don't know for sure because I have never tried
it <g>).

Doug.