/* mapmode2.cpp   example using anisotropic mapping mode */

#include <windows.h>
#include "mapmode2.h"

int PASCAL WinMain (HANDLE hInstance, HANDLE hPrevInstance, LPSTR lpszCmdLine,
    int nCmdShow)
{
    HWND        hWnd ;      /* the window's "handle" */
    MSG         msg ;       /* a message structure */
    WNDCLASS    wndclass ;  /* window class structure */
    char        cBuf [128] ; /* character buffer */

        wndclass.style          = CS_HREDRAW | CS_VREDRAW ;
        wndclass.lpfnWndProc    = WndProc ;
        wndclass.cbClsExtra     = 0 ;
        wndclass.cbWndExtra     = 0 ;
        wndclass.hInstance      = hInstance ;
        wndclass.hIcon          = NULL ;
        wndclass.hCursor        = LoadCursor (NULL, IDC_ARROW) ;
        wndclass.hbrBackground  = GetStockObject (WHITE_BRUSH) ;
        wndclass.lpszMenuName   = "MYMENU" ;
        wndclass.lpszClassName  = "MyClass" ;
                        /* register the window class */
        if (!RegisterClass (&wndclass))
            return 0 ;

    LoadString (hInstance, S_PROGRAMCAPTION, cBuf, sizeof (cBuf)) ;

    hWnd = CreateWindow ("MyClass", cBuf, WS_OVERLAPPEDWINDOW, 
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, 
        NULL, NULL, hInstance, NULL) ;
    ShowWindow (hWnd, nCmdShow) ;   /* display the window */    
    UpdateWindow (hWnd) ;

    while (GetMessage (&msg, NULL, 0, 0))   /* message loop */
    {
        TranslateMessage (&msg) ;   /* translate keyboard messages */
        DispatchMessage (&msg) ;    /* send message to WndProc() */
    }
    return (msg.wParam) ;
}

LRESULT CALLBACK WndProc (HWND hWnd, UINT wMessage, 
                                        WPARAM wParam, LPARAM lParam)
{
    PAINTSTRUCT     ps ;
    static  int     nX, nY ;
    
    switch (wMessage)       /* process windows messages */
    {
        case WM_COMMAND:
            switch (LOWORD(wParam))             /* menu items */
            {
                case IDM_QUIT:                  /* "Quit" menu item */
                    DestroyWindow (hWnd) ;      /* destroy window, */
                    break ;                     /* terminating application */
            }
            break ;

        case WM_SIZE:           /* save client area size */
            nX = LOWORD (lParam) ;
            nY = HIWORD (lParam) ;
            break ;

        case WM_PAINT:
            BeginPaint (hWnd, &ps) ;
            SetMapMode (ps.hdc, MM_ANISOTROPIC) ;
            SetViewportExtEx (ps.hdc, nX, nY, NULL) ; /* scale coordinates so... */
            SetWindowExtEx (ps.hdc, 100, 100, NULL) ; /* client area is 100x100 */
                                      /* note--logical y-axis still points down */
            Ellipse (ps.hdc, 0, 0, 100, 100) ;
            Rectangle (ps.hdc, 20, 20, 80, 80) ;
            EndPaint (hWnd, &ps) ;
            break ;

        case WM_DESTROY:                    /* stop application */
            PostQuitMessage (0) ;
            break ;

        default:        /* default windows message processing */
            return (DefWindowProc (hWnd, wMessage, wParam, lParam)) ;
    }
    return (0) ;
}