Visual C++ and MFC Programming 2nd Edition

Chapter 2 Variables and Identifiers Visual C++ and MFC Fundamentals

Figure 43: Creating an Elaborate Message Box........................................................................

6. Close it and return to MSVC

2.3.7 The Message’s Return Value................................................................

After using the message box, the user must close it by clicking a button on it. Clicking

OK usually means that the user acknowledged the message. Clicking Cancel usually

means the user is changing his or her mind about the action performed previously.

Clicking Yes instead of No usually indicates that the user agrees with whatever is going

on.

In reality, the message box only displays a message and one or a few buttons. The

function used to create the message box returns a natural number that you can use as you

see fit. The return value itself is a registered constant integer and can be one of the

following:

Displayed Button(s)

If the user

clicked

The return

value is

IDOK^

IDOK^

IDCANCEL^

IDABORT^

IDRETRY

IDIGNORE

IDYES

IDNO^

IDCANCEL^

IDYES^

IDNO^

IDRETRY^

IDCANCEL^