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最近尝试了一下用BITBLT贴位图，并在点击鼠标时使图象移动，开始时窗口不能强制重画，现在用了invalidate之后，图象能动了，可是图象闪烁的厉害，请问如何解决，代码如下：
#include "Game.h"
#include <windows.h>
#define MAX_LOADSTRING 100
#define SCREEN_HEIGHT 480
#define SCREEN_WIDTH 640
#define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0)
#define KEYUP(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 0 : 1)
int Game_Init(void *parms = NULL, int num_parms = 0);
int Game_ShutDown(void *parms = NULL, int num_parms = 0);
int Game_Main(void *parms = NULL, int num_parms = 0);
iPos iPosSence(0,0);
// 全局变量:
HINSTANCE hInst; // 当前实例
TCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本
TCHAR szWindowClass[MAX_LOADSTRING]; // 主窗口类名
HBITMAP hSence;
HDC hdcMem,hdc;
HWND hWnd;
// 此代码模块中包含的函数的前向声明:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: 在此放置代码。
MSG msg;
HACCEL hAccelTable;
// 初始化全局字符串
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_GAME, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// 执行应用程序初始化:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_GAME);
Game_Init();
// 主消息循环:
while(TRUE)
{
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if (msg.message == WM_QUIT)
break;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
Game_Main();
Sleep(30);
}
Game_ShutDown();
return (int) msg.wParam;
}
//
// 函数: MyRegisterClass()
//
// 目的: 注册窗口类。
//
// 注释:
//
// 仅当希望在已添加到 Windows 95 的
// “RegisterClassEx”函数之前此代码与 Win32 系统兼容时，
// 才需要此函数及其用法。调用此函数
// 十分重要，这样应用程序就可以获得关联的
// “格式正确的”小图标。
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
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 = LoadIcon(hInstance, (LPCTSTR)IDI_GAME);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCTSTR)IDC_GAME;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_GAME);
return RegisterClassEx(&wcex);
}
//
// 函数: InitInstance(HANDLE, int)
//
// 目的: 保存实例句柄并创建主窗口
//
// 注释:
//
// 在此函数中，我们在全局变量中保存实例句柄并
// 创建和显示主程序窗口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
int xScrn, yScrn,x,y;
HDC hScrDC;
hInst = hInstance; // 将实例句柄存储在全局变量中
hScrDC = CreateDC("DISPLAY", NULL, NULL, NULL);
xScrn = GetDeviceCaps(hScrDC, HORZRES);
yScrn = GetDeviceCaps(hScrDC, VERTRES);
x = (xScrn - SCREEN_WIDTH)/2;
y = (yScrn - SCREEN_HEIGHT)/2;
hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
x, y, SCREEN_WIDTH, SCREEN_HEIGHT, NULL, NULL, hInstance, NULL);
hSence= LoadBitmap (hInst, MAKEINTRESOURCE(IDB_SENCE)) ;
if (!hWnd)
{
return FALSE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
//
// 函数: WndProc(HWND, unsigned, WORD, LONG)
//
// 目的: 处理主窗口的消息。
//
// WM_COMMAND - 处理应用程序菜单
// WM_PAINT - 绘制主窗口
// WM_DESTROY - 发送退出消息并返回
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
switch (message)
{
case WM_LBUTTONDOWN:
iPosSence.x+=10;
break;
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// 分析菜单选择:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// “关于”框的消息处理程序。
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return FALSE;
}
int Game_Init(void *parms, int num_parms)
{
return 0;
}
int Game_ShutDown(void *parms, int num_parms)
{
return 0;
}
int Game_Main(void *parms, int num_parms)
{
PAINTSTRUCT ps;
hdc = BeginPaint(hWnd, &ps);
hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hSence) ;
BitBlt (hdc, 0,0, SCREEN_WIDTH, SCREEN_HEIGHT, hdcMem, iPosSence.x, iPosSence.y, SRCCOPY) ;
DeleteDC( hdcMem );
EndPaint(hWnd, &ps);
RECT rctA;
rctA.left = 0;
rctA.top = 0;
rctA.right = 640;
rctA.bottom = 480;
::InvalidateRect(hWnd,&rctA,TRUE);
return 0;
} |
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发表于 2006-5-11 12:46:00
楼主