//全局变量声明
HINSTANCE hInst;
HBITMAP bg,star,mask; //用于贴图的三个HBITMAP变量
HDC hdc,mdc,bufdc;
HWND hWnd;
RECT rect;
int i,count; //定义count用于计数

struct flystar
{
int x; //星光所在的x坐标
int y; //星光所在的y坐标
int vx; //星光x方向的速度
int vy; //星光y方向的速度
int lasted; //星光存在的时间
BOOL exist; //星光是否存在
}flystar[50];

//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
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}

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 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 = NULL;
wcex.hCursor = NULL;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = "maple";
wcex.hIconSm = NULL;

return RegisterClassEx(&wcex);
}