Dialog boxes

When i call a dialog box, how do i make it so that the user cant do anything else with the app until hes finished with the dialog?

You can create a new class for your new dialog.Then declare a variable of your dialog class name type.Then you can use all the functions with your dlg.
Note: You have to include your new class header file.

Code:

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#include "YourDialogClassName.h"
YourDialogClassName mydlg;
mydlg.DoModal()

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That's only for MFC. In normal terms, use the DialogBox function to make a modal dialogue box.