Windows中多指针输入技术的实现与应用(9 我设想用来实现MFC多鼠标的透明窗口源代码。。。）

#include "stdafx.h"
#include "TestWnd.h"
#include "MouseWnd.h"


//  
CMouseWnd


IMPLEMENT_DYNAMIC(CMouseWnd,  
CWnd)


CMouseWnd::CMouseWnd()
{
    m_image.Load(_T("res/Mouseh.png"));
}

CMouseWnd::~CMouseWnd()
{
}


BEGIN_MESSAGE_MAP(CMouseWnd,  
CWnd)
    ON_WM_PAINT()
    ON_WM_CREATE()
    ON_WM_DESTROY()
    ON_WM_ERASEBKGND()
END_MESSAGE_MAP()



//  
CMouseWnd 消息处理程序



void CMouseWnd::OnPaint()
{
    CPaintDC dc(this); // device context for painting
    // TODO: 在此处添加消息处理程序代码
    // 不为绘图消息调用CWnd::OnPaint()
    //dc.TransparentBlt(m_rtImage.left,  
m_rtImage.top, m_rtImage.Width(), m_rtImage.Height(),
    //  m_pImDC,  
0, 0, m_image.GetWidth(), m_image.GetHeight(), RGB(255,255,255))


    //BLENDFUNCTION blend;
    //blend.BlendOp = AC_SRC_OVER;
    //blend.BlendFlags = 0;
    //blend.SourceConstantAlpha = 0;
    //blend.AlphaFormat = AC_SRC_ALPHA;
    //UpdateLayeredWindow(CPaintDC::FromHandle(dc.GetSafeHdc()),  
&CPoint(0,0), &CSize(m_image.GetWidth(), m_image.GetHeight()),
    //  m_pImDC,  
&CPoint(0,0), RGB(255,255,255), &blend, ULW_ALPHA | ULW_COLORKEY);

    //m_image.TransparentBlt(dc.GetSafeHdc(),m_rtImage,RGB(255,255,255));
}

int CMouseWnd::OnCreate(LPCREATESTRUCT  
lpCreateStruct)
{
    if (CWnd::OnCreate(lpCreateStruct)  
== -1)
       return -1;

    // TODO:  在此添加您专用的创建代码
    GetClientRect(&m_rtImage);
    m_rtImage.right = m_image.GetWidth();
    m_rtImage.bottom = m_image.GetHeight();
    m_pImDC = CDC::FromHandle(m_image.GetDC());

    ::SetWindowLong(m_hWnd, GWL_EXSTYLE,  
       ::GetWindowLong(m_hWnd, GWL_EXSTYLE)  
| WS_EX_LAYERED);
    SetLayeredWindowAttributes(RGB(255,255,255), 0, LWA_COLORKEY);
    SetWindowPos(&wndTopMost,0,0,0,0,SWP_NOMOVE  
| SWP_NOSIZE);
    return 0;
}

void CMouseWnd::OnDestroy()
{
    CWnd::OnDestroy();

    // TODO: 在此处添加消息处理程序代码
    m_image.ReleaseDC();
}

BOOL CMouseWnd::OnEraseBkgnd(CDC*  
pDC)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
//  CWnd::OnEraseBkgnd(pDC);

    //pDC->TransparentBlt(m_rtImage.left,  
m_rtImage.top, m_rtImage.Width(), m_rtImage.Height(),
    //  m_pImDC,  
0, 0, m_image.GetWidth(), m_image.GetHeight(), RGB(255,255,255));
//  m_image.TransparentBlt(pDC->GetSafeHdc(),m_rtImage,RGB(255,255,255));
    m_image.Draw(pDC->GetSafeHdc(),m_rtImage);
//  m_image.BitBlt(pDC->GetSafeHdc(),m_rtImage.left,m_rtImage.right,SRCCOPY);
    return true;
}

BOOL CMouseWnd::PreCreateWindow(CREATESTRUCT&  
cs)
{
    // TODO: 在此添加专用代码和/或调用基类
    //cs.lpszClass =  
AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW|CS_DBLCLKS, 
    //  ::LoadCursor(NULL,  
IDC_ARROW), reinterpret_cast<HBRUSH>(GetStockObject(NULL_BRUSH)), NULL);
    return CWnd::PreCreateWindow(cs);
}

#include "stdafx.h"
#include "TestWnd.h"
#include "ChildView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


//  
CChildView

CChildView::CChildView()
{
    m_image.Load(_T("res/Mouseh.png"));
    m_imBackGround.Load(_T("res/BackGround001.jpg"));
}

CChildView::~CChildView()
{
}


BEGIN_MESSAGE_MAP(CChildView,  
CWnd)
    ON_WM_PAINT()
    ON_WM_CREATE()
    ON_WM_TIMER()
    ON_WM_ERASEBKGND()
    ON_WM_DESTROY()
END_MESSAGE_MAP()



//  
CChildView 消息处理程序

BOOL CChildView::PreCreateWindow(CREATESTRUCT&  
cs) 
{
    if (!CWnd::PreCreateWindow(cs))
       return FALSE;

    cs.dwExStyle  
|= WS_EX_CLIENTEDGE;
    cs.style  
&= ~WS_BORDER;
    cs.lpszClass  
= AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW|CS_DBLCLKS, 
       ::LoadCursor(NULL, IDC_ARROW),  
reinterpret_cast<HBRUSH>(COLOR_WINDOW+1), NULL);

    return TRUE;
}

void CChildView::OnPaint() 
{
    CPaintDC dc(this); // 用于绘制的设备上下文
   
    // TODO: 在此处添加消息处理程序代码
   
    // 不要为绘制消息而调用CWnd::OnPaint()


// Use pDC  
here
    //dc.TransparentBlt(m_rtImage.left,  
m_rtImage.top, m_rtImage.Width(), m_rtImage.Height(),
       //m_pImDC, 0, 0, m_image.GetWidth(),  
m_image.GetHeight(), RGB(255,255,255));
    //dc.BitBlt(m_rtImage.left,  
m_rtImage.top, m_rtImage.Width(), m_rtImage.Height(),
    //  m_pImDC,  
0, 0, SRCCOPY);

    m_image.TransparentBlt(dc.GetSafeHdc(),m_rtImage,RGB(255,255,255));
// m_image.TransparentBlt(dc.GetSafeHdc(),0,0,m_image.GetWidth(),m_image.GetHeight(),RGB(255,255,255));
    //m_image.Draw(dc.GetSafeHdc(),0,0);
}


int CChildView::OnCreate(LPCREATESTRUCT  
lpCreateStruct)
{
    if (CWnd::OnCreate(lpCreateStruct)  
== -1)
       return -1;

    // TODO:  在此添加您专用的创建代码
    GetClientRect(&m_rtImage);
    m_rtImage.right = m_image.GetWidth();
    m_rtImage.bottom = m_image.GetHeight();
    m_pImDC = CDC::FromHandle(m_image.GetDC());
    SetTimer(NULL,100,NULL);

    GetClientRect(&m_rtMouseWnd);
    m_rtMouseWnd.right = m_mouseWnd.m_image.GetWidth();
    m_rtMouseWnd.bottom = m_mouseWnd.m_image.GetHeight();
    m_rtMouseWnd.OffsetRect(0, 100);
    m_mouseWnd.CreateEx(NULL, AfxRegisterWndClass(0), _T(""), WS_POPUP  
| WS_VISIBLE,
                     m_rtMouseWnd,  
NULL,  NULL, NULL );
    //m_mouseWnd.Create(NULL, NULL,  
WS_CHILD | WS_VISIBLE, m_rtMouseWnd, this,
    //  1001);
    /*SetTransparent(m_mouseWnd.m_hWnd,0);*/
    return 0;
}

void CChildView::OnTimer(UINT_PTR  
nIDEvent)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
    CClientDC dc(this);

    m_rtImage.OffsetRect(1,0);
    CRect rect(m_rtImage.left-1,m_rtImage.top,m_rtImage.right,m_rtImage.bottom);
    //InvalidateRect(rect);
//  Invalidate();
    m_rtMouseWnd.OffsetRect(1, 0);
    m_mouseWnd.MoveWindow(m_rtMouseWnd);
//  m_mouseWnd.Invalidate();
//  m_mouseWnd.AnimateWindow(200,AW_SLIDE |  
AW_HOR_POSITIVE );
    CWnd::OnTimer(nIDEvent);
}

BOOL CChildView::OnEraseBkgnd(CDC*  
pDC)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
//  CWnd::OnEraseBkgnd(pDC);
    CRect rect;
    GetClientRect(&rect);
    m_imBackGround.StretchBlt(pDC->GetSafeHdc(),rect);
    return true;
}

void CChildView::OnDestroy()
{
    CWnd::OnDestroy();

    m_image.ReleaseDC();
    // TODO: 在此处添加消息处理程序代码
}

//void  
CChildView::SetTransparent(HWND    
hwnd,UINT   alpha)  

//{
//  typedef BOOL (*LAYERFUNC)(HWND hwnd,COLORREF  
crKey,BYTE bAlpha,DWORD dwFlags);
//  LAYERFUNC    
SetLayer;  
//  HMODULE    
hmod=LoadLibrary(_T("user32.dll"));  
//  SetWindowLong(hwnd,GWL_EXSTYLE,GetWindowLong(hwnd,GWL_EXSTYLE)|0x80000L);  
//  SetLayer=(LAYERFUNC)GetProcAddress(hmod,"SetLayeredWindowAttributes");  
//  SetLayer(hwnd,0,(255*alpha)/100,0x2);  
//
//  FreeLibrary(hmod);  
//}