How do I change from SDI to MDI?

[Stephen McGeown]

Hi folks, I created an SDI application using AppWizard but I wish I created an MDI application. Is there any way I can convert it to MDI without re-writing my app? Thanks for your help!:confused: Scotland - it's nice when it's not raining.

[Christian Graus]

I doubt it - MDI has a lot of differences to SDI, including different classes that need to be created. Usually to make a change to what the initial options are you create two empty projects that differ only in the thing you want to chage, then run a diff tool over them. In this case, I'd say it's unlikely. Christian I've learned that you cannot make someone love you. All you can do is stalk them and hope they panic and give in. The early bird may get the worm, but it's the second mouse that gets the cheese.

[Tomasz Sowinski]

The best way to accomplish SDI->MDI migration is creating empty MDI project and transferrind application/document/view classes from SDI to MDI. What's not moved is the CMainFrame class - it'll be different in MDI app. Additionally, you'll have to replace CSingleDocTemplate with CMultiDocTemplate in InitInstance method of your application class. The process should be rather straightforward, and much easier than changing your existing project to MDI "in-place". Tomasz Sowinski -- http://www.shooltz.com.pl