www.pudn.com > MyScreensaver.rar > MyWnd.cpp

// MyWnd.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "MyScreensaver.h" 
#include "MyWnd.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CMyWnd 
#define ID_TIMER WM_USER+1000 
CMyWnd::CMyWnd() 
{ 
	m_prePoint=CPoint(-1,-1); 
} 
CMyWnd::~CMyWnd() 
{ 
} 
 
BEGIN_MESSAGE_MAP(CMyWnd, CWnd) 
	//{{AFX_MSG_MAP(CMyWnd) 
	ON_WM_PAINT() 
	ON_WM_KEYDOWN() 
	ON_WM_LBUTTONDOWN() 
	ON_WM_MBUTTONDOWN() 
	ON_WM_MOUSEMOVE() 
	ON_WM_RBUTTONDOWN() 
	ON_WM_SYSKEYDOWN() 
	ON_WM_DESTROY() 
	ON_WM_TIMER() 
	ON_WM_ACTIVATE() 
	ON_WM_ACTIVATEAPP() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
LPCSTR CMyWnd::lpszClassName=NULL; 
BOOL CMyWnd::Create() 
{ 
 
	if(lpszClassName==NULL) 
	{ 
		lpszClassName=AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW, 
			::LoadCursor(AfxGetResourceHandle(),MAKEINTRESOURCE(IDC_NOCURSOR))); 
		//注册类；IDC_NOCURSOR为新建光标的ID，这个光标没有任何图案 
	} 
	CRect rect(0, 0, ::GetSystemMetrics(SM_CXSCREEN), 
		::GetSystemMetrics(SM_CYSCREEN)); 
	CreateEx(WS_EX_TOPMOST, lpszClassName, _T(""), WS_VISIBLE|WS_POPUP, 
		rect.left,rect.top,rect.right - rect.left, rect.bottom - rect.top, 
		GetSafeHwnd(), NULL, NULL); //创建一个全屏窗口 
	SetTimer(ID_TIMER, 500, NULL);//计时器，ID_TIMER别忘了定义 
 
	return TRUE; 
} 
//为了防止同时运行两个相同的程序，下面两个函数是必需的 
void CMyWnd::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized) 
{ 
	CWnd::OnActivate(nState,pWndOther,bMinimized); 
	if(nState==WA_INACTIVE) 
		PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnActivateApp(BOOL bActive, HTASK hTask) 
{ 
	CWnd::OnActivateApp(bActive, hTask); 
	if(!bActive) //is being deactivated 
		PostMessage(WM_CLOSE); 
} 
//OnPaint()函数将全屏窗口置为黑色 
void CMyWnd::OnPaint() 
{ 
	CPaintDC dc(this); 
	CBrush brush(RGB(0,0,0)); 
	CRect rect; 
	GetClientRect(rect); 
	dc.FillRect(&rect,&brush); 
} 
//由计数器调用DrawBitmap()函数，切换图片； 
//注意，下面两个函数中的IDB_BITMAP1, dc.BitBlt(0,0,800,600……以及if(nIndexBit>=5)中的 
//有关数据依据你的bmp图片个数、尺寸、位置不同而不同，我是选择了5张 
//800x600的bmp图片。注意，ID值是连续的，IDB_BITMAP1最小 
void CMyWnd::DrawBitmap(CDC& dc, int nIndexBit) 
{ 
	CDC dcmem; 
	dcmem.CreateCompatibleDC(&dc); 
	CBitmap m_Bitmap; 
	m_Bitmap.LoadBitmap(IDB_BITMAP1+nIndexBit); 
	dcmem.SelectObject(m_Bitmap); 
	dc.BitBlt(0,0,800,600,&dcmem,0,0,SRCCOPY); 
} 
void CMyWnd::OnTimer(UINT nIDEvent) 
{ 
	CClientDC dc(this); 
	static nIndexBit=0; 
	if(nIndexBit>=5) 
		nIndexBit=0; 
	DrawBitmap(dc, nIndexBit++); 
	CWnd::OnTimer(nIDEvent); 
} 
//响应键盘、鼠标是屏幕保护程序不可缺少的 
void CMyWnd::OnKeyDown(UINT nChar,UINT nRepCnt,UINT nFlags) 
{ 
	PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnLButtonDown(UINT nFlags,CPoint point) 
{ 
	PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnMButtonDown(UINT nFlags,CPoint point) 
{ 
	PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnRButtonDown(UINT nFlags,CPoint point) 
{ 
	PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnSysKeyDown(UINT nChar,UINT nRepCnt,UINT nFlags) 
{ 
	PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnMouseMove(UINT nFlags,CPoint point) 
{ 
	if(m_prePoint == CPoint(-1,-1)) 
		m_prePoint = point; 
	else if(m_prePoint!=point) 
		PostMessage(WM_CLOSE); 
} 
void CMyWnd::OnDestroy() 
{ 
	//删掉计时器 
	KillTimer(ID_TIMER); 
} 
void CMyWnd::PostNcDestroy() 
{ 
	delete this; 
} 
///////////////////////////////////////////////////////////////////////////// 
// CMyWnd message handlers