HPAVC/HPAVC CD-ROM.iso/pc/WINTUT2.ZIP/Tut2/demo2.cpp

C/C++ Source or Header | 1997-04-03 | 4.6 KB | 183 lines

#include "stdafx.h"    // Okay, so it doesn't include MFC stuff... sue me. It has all the common
                    //    .h files I use.
#include "demo2.h"
#include "resource.h"    // All the information needed to access the bitmaps

BOOL    g_bUserTimer = FALSE;
            // Set to use either WM_TIMER or PeekMessage method of animation


void SetUp(HINSTANCE hInstance);
void ShutDown();

void DoAnimation(HWND hWnd);

long FAR PASCAL WndProc (HWND hWnd, WORD iMessage, WORD wParam, LONG lParam);
            // Forward declaration


int PASCAL WinMain (HANDLE hInstance, HANDLE hPrevInstance, LPSTR lpszCmdParam, int nCmdShow)
{
    MSG Message;
    WNDCLASS WndClass;

    if (!hPrevInstance)
    {
        WndClass.cbClsExtra = 0;
        WndClass.cbWndExtra = 0;
        WndClass.hbrBackground = GetStockObject (BLACK_BRUSH);
        WndClass.hCursor = LoadCursor (NULL, IDC_ARROW);
        WndClass.hIcon = LoadIcon (NULL, IDI_APPLICATION);
        WndClass.hInstance = hInstance;
        WndClass.lpfnWndProc = (WNDPROC) WndProc;
        WndClass.lpszClassName = "BITMAP_WINDOW";
        WndClass.lpszMenuName = NULL;
        WndClass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;

        RegisterClass (&WndClass);
    }
    HWND hWnd = CreateWindow ("BITMAP_WINDOW", "Asphyxia 16color Bitmaps", WS_OVERLAPPEDWINDOW|WS_MAXIMIZE,
                    50, 100, 320, 200, NULL, NULL, hInstance, NULL);


    SetUp(hInstance);

    ShowWindow (hWnd, SW_SHOWMAXIMIZED);
    UpdateWindow (hWnd);


    if (g_bUserTimer)
    {
        while (GetMessage (&Message, 0, 0, 0))
        {
            TranslateMessage (&Message);
            DispatchMessage (&Message);
        }
    }
    else
    {
        while (TRUE)
        {
            DoAnimation(hWnd);

            if (PeekMessage (&Message, NULL, 0, 0, PM_REMOVE))
            {
                if (Message.message == WM_QUIT)
                    return Message.wParam;

                TranslateMessage (&Message);
                DispatchMessage (&Message);
            }
        }
    }

    ShutDown();

    return Message.wParam;
}



long FAR PASCAL WndProc (HWND hWnd, WORD iMessage, WORD wParam, LONG lParam)
{
    switch (iMessage)
    {
        case WM_CREATE :
        {
            if (g_bUserTimer)
                SetTimer (hWnd, 1, 10, NULL);
        }
        break;
        case WM_PAINT :
        {
            PAINTSTRUCT    PtStr;
            HDC pDC = BeginPaint (hWnd, &PtStr);

            for (int i = 0; i < g_nNumPictures; i++)
                g_szcsPicture[g_szcapItem[i].m_nCurFrame].DrawImage (pDC, g_szcapItem[i].GetXPos(), g_szcapItem[i].GetYPos());

            EndPaint (hWnd, &PtStr);
            return (0);
        }
        break;
        case WM_TIMER :
        {
            if ((wParam == 1) && g_bUserTimer)
                DoAnimation(hWnd);
        }
        break;
        case WM_SIZE :
        {
            g_nWinWidth = LOWORD(lParam);
            g_nWinHeight = HIWORD(lParam);
        }
        break;
        case WM_DESTROY :
        {
            if (g_bUserTimer)
                KillTimer (hWnd, 1);
            PostQuitMessage (0);
            return 0;
        }
        break;
    }
    return (DefWindowProc (hWnd, iMessage, wParam, lParam) );
}

void SetUp(HINSTANCE hInstance)
{
    g_szcsPicture[ 0].InitImage (hInstance, IDB_XPIC1, 83, 70);
    g_szcsPicture[ 1].InitImage (hInstance, IDB_XPIC2, 83, 70);
    g_szcsPicture[ 2].InitImage (hInstance, IDB_XPIC3, 83, 70);
    g_szcsPicture[ 3].InitImage (hInstance, IDB_XPIC4, 83, 70);
    g_szcsPicture[ 4].InitImage (hInstance, IDB_XPIC5, 83, 70);
    g_szcsPicture[ 5].InitImage (hInstance, IDB_XPIC6, 83, 70);
    g_szcsPicture[ 6].InitImage (hInstance, IDB_XPIC7, 83, 70);
    g_szcsPicture[ 7].InitImage (hInstance, IDB_XPIC8, 83, 70);
    g_szcsPicture[ 8].InitImage (hInstance, IDB_XPIC9, 83, 70);
    g_szcsPicture[ 9].InitImage (hInstance, IDB_XPIC10, 83, 70);
    g_szcsPicture[10].InitImage (hInstance, IDB_XPIC11, 83, 70);
    g_szcsPicture[11].InitImage (hInstance, IDB_XPIC12, 83, 70);
    g_szcsPicture[12].InitImage (hInstance, IDB_XPIC13, 83, 70);
    g_szcsPicture[13].InitImage (hInstance, IDB_XPIC14, 83, 70);

    for (int i = 0; i < g_nNumPictures; i++)
    {
        g_szcapItem[i].PositionImage (RANDOM (0, g_nWinWidth+90), RANDOM (-70, g_nWinHeight));
            //    Randomly place pictures on the screen
    }

}

void ShutDown()
{
        //    The bitmaps are freed in the class deconstructer
        //    If I had "new"'d or "malloc"'d anything, I would free it here
}


void DoAnimation(HWND hWnd)
{
    HDC pDC = GetDC(hWnd);

    for (int i = 0; i < g_nNumPictures; i++)
    {
        int nTempX = g_szcapItem[i].GetXPos ();
        nTempX--;
        int nTempY = g_szcapItem[i].GetYPos ();
        nTempY++;
            //    Move the picture

        if (nTempX < - 83)
        {
            nTempX = RANDOM (0, g_nWinWidth+g_nWinHeight);
            nTempY = -70;
        }        //    Reset position when it leaves the screen

        g_szcapItem[i].PositionImage (nTempX, nTempY);
        g_szcsPicture[g_szcapItem[i].m_nCurFrame].DrawImage (pDC, g_szcapItem[i].GetXPos(), g_szcapItem[i].GetYPos());
    }

    ReleaseDC(hWnd, pDC);
}