Visual C++ and MFC Programming 2nd Edition

Visual C++ and MFC Fundamentals Chapter 2: Introduction to MFC

Practical Learning: Using a Message Box

1. To display an combination of buttons on the message box, change the InitInstance()
   member function as follows:

BOOL CExerciseApp::InitInstance()

{

::MessageBox(NULL,

"The username you entered is not in our records.\n"

"Do you wish to contact Human Resources?",

"Failed Logon Attempt",

MB_YESNO);

return TRUE;

}

2. Test the application

Figure 42: Creating a Message Box............................................................................................

3. Close it and return to MSVC


4. To display the message box with an icon, change InitInstance() as follows:

BOOL CExerciseApp::InitInstance()

{

CWnd *Msg = new CWnd;

Msg->MessageBox("The credentials you entered are not in our records.\n"

"What do you want to do? Click:\n"

"Yes\tto contact Human Resources\n"

"No\tto close the application\n"

"Cancel\tto try again\n",

"Failed Logon Attempt",

MB_YESNOCANCEL | MB_ICONQUESTION);

return TRUE;

}

5. Test the application