LRESULT CALLBACK WndProc ( HWND, UINT, WPARAM, LPARAM ) ;

HINSTANCE hInst ; // current instance

/*   FUNCTION: InitInstance ( HANDLE, int 
     PURPOSE: Saves instance handle and creates main window
     COMMENTS: In this function, we save the instance handle in a global  
                            variable and create and display the main program window.
*/
BOOL InitInstance ( HINSTANCE hInstance, int nCmdShow, char* pTitle )
{
	char classname[ ] = "MyWindowClass" ;
	HWND hWnd ;

	WNDCLASSEX wcex ;
	wcex.cbSize			= sizeof ( WNDCLASSEX ) ; 
	wcex.style			= CS_HREDRAW | CS_VREDRAW ;
	wcex.lpfnWndProc	= ( WNDPROC ) WndProc ;
	wcex.cbClsExtra		= 0 ;
	wcex.cbWndExtra	= 0 ;
	wcex.hInstance		= hInstance ;
	wcex.hIcon			= NULL ;
	wcex.hCursor		= LoadCursor ( NULL, IDC_ARROW ) ;
	wcex.hbrBackground	= ( HBRUSH )( COLOR_WINDOW + 1 ) ;
	wcex.lpszMenuName	= NULL ;
	wcex.lpszClassName	= classname ;
	wcex.hIconSm		= NULL ;

	if ( !RegisterClassEx ( &wcex ) )
		return FALSE ;

	hInst = hInstance ; // Store instance handle in our global variable

	hWnd = CreateWindow ( classname, pTitle, 
					WS_OVERLAPPEDWINDOW,
					CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, 
					NULL, hInstance, NULL ) ;
	if ( !hWnd )
	    return FALSE ;
   
	ShowWindow ( hWnd, nCmdShow ) ;
	UpdateWindow ( hWnd ) ;

	return TRUE ;
}