就做一个界面
要用定时器
正常状态是一个波形（一张图）
点击一个键就是波形慢慢动（其实就是几张图在换～）


怎么用定时器弄图片？




[ 此帖被野猪在2008-05-02 00:07重新编辑 ]

// Timer Functions
    UINT SetTimer(UINT nIDEvent, UINT nElapse,
        void (CALLBACK* lpfnTimer)(HWND, UINT, UINT, DWORD));
    BOOL KillTimer(int nIDEvent);

SetTimer(1,3000);//打开定时器1,时间3000ms,输入是两个的话默认响应函数是通过消息WM_TIMER
KillTimer(1);//关闭定时器1
//相应WM_TIMER函数
void CDialog1::OnTimer(UINT nIDEvent)
{
    // TODO: Add your message handler code here and/or call default
    if(nIDEvent==1)
                    {
                    KillTimer(1);//关闭定时器1
                    //添加定时器1处理
          SetTimer(1,3000);//再打开定时器1
                    }
    CDialog::OnTimer(nIDEvent);
}

Quote:

引用第2楼yy1213于2008-05-02 00:14发表的 :
SetTimer(1,3000);//打开定时器1,时间3000ms,输入是两个的话默认响应函数是通过消息WM_TIMER
KillTimer(1);//关闭定时器1
//相应WM_TIMER函数
void CDialog1::OnTimer(UINT nIDEvent)
{
.......

哦　酱汁啊
　有点乱　··

Quote:

引用第3楼stephenwang于2008-05-02 00:17发表的  :

哦　酱汁啊
　有点乱　··

将就一下!
看函数原型就知道怎么回事了!

Quote:

// Wave.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include<math.h>
#include<TCHAR.h>
#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                // current instance
TCHAR szTitle[]=_T("asd");                    // The title bar text
TCHAR szWindowClass[]=_T("asd");            // the main window class name
HWND hWnd;
// Forward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

VOID CALLBACK TimerProc(HWND hwnd,
    UINT uMsg,
    UINT_PTR idEvent,
    DWORD dwTime)
{
    RedrawWindow(hWnd, NULL, NULL, RDW_INVALIDATE | RDW_ERASE);
}


int APIENTRY _tWinMain(HINSTANCE hInstance,
                    HINSTANCE hPrevInstance,
                    LPTSTR    lpCmdLine,
                    int      nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // TODO: Place code here.
    MSG msg;
    HACCEL hAccelTable;

    // Initialize global strings
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    SetTimer(hWnd, NULL, 25, TimerProc);

    // Main message loop:
    while (GetMessage(&msg, NULL, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, NULL, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return (int) msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage are only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style            = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = 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    = szWindowClass;
    wcex.hIconSm        = NULL;

    return RegisterClassEx(&wcex);
}

//
//  FUNCTION: InitInstance(HINSTANCE, 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)
{

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

  hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

  if (!hWnd)
  {
      return FALSE;
  }

  ShowWindow(hWnd, nCmdShow);
  UpdateWindow(hWnd);

  return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND    - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY    - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;

    switch (message)
    {
    case WM_COMMAND:
        wmId    = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
        break;
    case WM_PAINT:
        {
        DWORD count = GetTickCount();
        hdc = BeginPaint(hWnd, &ps);
        MoveToEx(hdc, 0, 100, NULL);
        for(int i=0;i<500;i+=2) {
            int h = 100 + 100 * sin((count + i) / 50.0);
            LineTo(hdc, i, h);
        }
        EndPaint(hWnd, &ps);
        }
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    UNREFERENCED_PARAMETER(lParam);
    switch (message)
    {
    case WM_INITDIALOG:
        return (INT_PTR)TRUE;

    case WM_COMMAND:
        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
        {
            EndDialog(hDlg, LOWORD(wParam));
            return (INT_PTR)TRUE;
        }
        break;
    }
    return (INT_PTR)FALSE;
}

我写unsigned int它说要改成unsigned long。。
改了它又说要改回来。。

应该怎么办