Visual C++ and MFC Programming 2nd Edition

Chapter 12: Dialog-Based Windows Visual C++ and MFC Fundamentals

These are the same values used to initialize the window class. Using these values as

initialized above, you can register the window class as follows:

CMainFrame::CMainFrame()

{

// Declare a window class variable

WNDCLASS WndCls;

WndCls.style = CS_VREDRAW | CS_HREDRAW;

WndCls.lpfnWndProc = AfxWndProc;

WndCls.cbClsExtra = 0;

WndCls.cbWndExtra = 0;

WndCls.hInstance = AfxGetInstanceHandle();

WndCls.hIcon = AfxGetApp()->LoadStandardIcon(IDI_WARNING);

WndCls.hCursor = AfxGetApp()->LoadStandardCursor(IDC_CROSS);

WndCls.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);

WndCls.hCursor = AfxGetApp()->LoadStandardCursor(IDC_CROSS);

AfxRegisterWndClass(WndCls.style, WndCls.hCursor,

WndCls.hbrBackground, WndCls.hIcon);

}

Practical Learning: Registering a Window

1. Just above the return line of the WinMain() function, register the class using the
   RegisterClassEx() function:

//---------------------------------------------------------------------------

INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,

LPSTR lpCmdLine, int nCmdShow )

{

WNDCLASSEX WndClsEx;

WndClsEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

RegisterClassEx(&WndClsEx);

return 0;

}

//---------------------------------------------------------------------------

2. Save All

10.2 Window Creation.........................................................................................

10.2.1..The Main Window..............................................................................

The WNDLCLASS and the WNDCLASSEX classes are only used to initialize the

application window class. To display a window, that is, to give the user an object to work

with, you must create a window object. This window is the object the user uses to interact

with the computer.