Exit from Excel edit mode using IDispatch

I've searched Internet and groups, but can't find a solution to this.
Can anyone, please, tell, is there any way to perform exit from Excel
edit mode in programmatic way with either accepting user input or
cancelling it. I need to do that from another application using the
IDispatch pointer to Excel. Here is another trick comes out: I can get
the pointer to the active instance of Excel. I can even determine if
is it in edit mode (just call the function to activate my ole object
of excel and I get the E_OUTOFMEMORY error. That is understandable).
So when I detect, that excel is in Edit mode, is there any way to tell
excel to exit that mode? Any ideas? Thanks for any help.