how to maninulate one form from another

say I have newform1 as new form1 and newform2 as new form2
when I type me.backcolor in form2 it works,
but when I try to change newform2 color from form1 one it does not work unless I declare form 2 as pulic from module.

how can i, without declaring it in separate modue

I want to change newform2 color from newform1
how?

thanks

you need a reference to the form. Are you declaring both forms in a module, and then opening them both? or are you declaring one form in the module, and the second form in the first form?