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true);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
hdc = GetDC(hWnd);
mdc = CreateCompatibleDC(hdc);
bufdc = CreateCompatibleDC(hdc);
bmp = CreateCompatibleBitmap(hdc,640,480);
SelectObject(mdc,bmp);
bg = (HBITMAP)LoadImage(NULL,"bg.bmp",IMAGE_BITMAP,640,480,LR_LOADFROMFILE);
bird = (HBITMAP)LoadImage(NULL,"angrybird.bmp",IMAGE_BITMAP,120,60,LR_LOADFROMFILE);
GetClientRect(hWnd,&rect); //取得内部窗口区域的大小
MyPaint(hdc);
return TRUE;
}
//****自定义绘图函数*********************************
// 1.进行窗口贴图
// 2.计算小鸟贴图坐标并判断小鸟是否碰到窗口边沿
void MyPaint(HDC hdc)
{
SelectObject(bufdc,bg);
BitBlt(mdc,0,0,640,480,bufdc,0,0,SRCCOPY);
SelectObject(bufdc,bird);
BitBlt(mdc,x,y,60,60,bufdc,60,0,SRCAND);
BitBlt(mdc,x,y,60,60,bufdc,0,0,SRCPAINT);
BitBlt(hdc,0,0,640,480,mdc,0,0,SRCCOPY);
//计算X轴贴图坐标与速度
x += vx;
if(x <= 0)
{
x = 0;
vx = -vx;
}
else if(x >= rect.right-60)
{
x = rect.right - 60;
vx = -vx;
}
//计算Y轴贴图坐标与速度
y += vy;
if(y<=0)
{
y = 0;
vy = -vy;
}
else if(y >= rect.bottom-60)
{
y = rect.bottom - 60;
vy = -vy;
}
tPre = GetTickCount(); //记录此次绘图时间
}
////****消息处理函数***********************************
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_KEYDOWN: //按键消息
if(wParam==VK_ESCAPE) //按下【Esc】键
PostQuitMessage(0);
break;
case WM_DESTROY: //窗口结束消息
DeleteDC(mdc);
DeleteDC(bufdc);
DeleteObject(bg);
DeleteObject(bird);
ReleaseDC(hWnd,hdc);
PostQuitMessage(0);
break;
default: //其他消息
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
#include "stdafx.h"
#include
//全局变量声明
HINSTANCE hInst;
HBITMAP bg,bird;
HDC hdc,mdc,bufdc;
HWND hWnd;
DWORD tPre,tNow,tCheck;
RECT rect; //定义一个RECT结构体，用于储存内部窗口区域的坐标
int x=50,y=50,vx=15,vy=15; //x与y是小鸟在窗口中的贴图坐标，vx与vy为小鸟在x与y轴运动的速度分量
//全局函数声明
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
void MyPaint(HDC hdc);
//****WinMain函数，程序入口点函数**************************************
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
MyRegisterClass(hInstance);
//初始化
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
//消息循环
GetMessage(&msg,NULL,NULL,NULL); //初始化msg
while( msg.message!=WM_QUIT )
{
if( PeekMessage( &msg, NULL, 0,0 ,PM_REMOVE) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
else
{
tNow = GetTickCount();
if(tNow-tPre >= 40)
MyPaint(hdc);
}
}
return msg.wParam;
}
//****设计一个窗口类，类似填空题，使用窗口结构体*********************
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX |