what is the difference between SDI and MDI

Answer Posted / ramesh alavala

SDI:
We can open only one document at a time, Ex: Notepad
SDI App hold only 4 classes (C View,C Doc,Underframe,CWinApp)
SDI is not container control.
SDI is stand-alone, ordinary windows/forms that exists
independently
of each other.
MDI:
We can open multiple docs simultaneously.
example:MS Word.
MDI holds 5 classes (CChildWnd<---
CMDIChildWnd,C Doc,C view,CFrameWnd).
mdi is a container control.
MDI is when your application consist of an MDI parent-form
that contains all the other window/forms.

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