帮忙看一下下面的代码，再做不出来老板要把我开除了，我真是够菜

[nntt]

/--------该类是一个从CWnd派生出来的作为另一个窗体的tooltip----/
class CMsgWnd : public CWnd
{
// Construction
public:
CMsgWnd();
void SetPostion(int x, int y);

// Attributes
protected:
CBitmap m_Bitmap;
BITMAP bmBitmap;
BOOL m_bFlag;
LPCTSTR lpWndCls;
HWND m_hParentWnd;


// Operations
public:

// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CMsgWnd)
//}}AFX_VIRTUAL
public:
virtual ~CMsgWnd();
BOOL CreateMsgWindow(CWnd* pParentWnd);
// Generated message map functions
protected:
//{{AFX_MSG(CMsgWnd)
afx_msg void OnPaint();
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

CMsgWnd::CMsgWnd()
{
m_Bitmap.LoadBitmap(MAKEINTRESOURCE(IDB_BITMAP_BK));
m_Bitmap.GetBitmap(&bmBitmap);
lpWndCls = AfxRegisterWndClass(0);
}

CMsgWnd::~CMsgWnd()
{
}


BEGIN_MESSAGE_MAP(CMsgWnd, CWnd)
//{{AFX_MSG_MAP(CMsgWnd)
ON_WM_PAINT()
ON_WM_CREATE()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CMsgWnd message handlers
BOOL CMsgWnd::CreateMsgWindow(CWnd* pParentWnd)
{
BOOL ret = CreateEx(0, lpWndCls, "", WS_POPUP, 0, 0, bmBitmap.bmWidth, bmBitmap.bmHeight, pParentWnd->GetSafeHwnd(), NULL, NULL);
m_hParentWnd = pParentWnd->GetSafeHwnd();
if(ret)
{
SetOwner(pParentWnd);
}
return ret;
}

void CMsgWnd::OnPaint()
{
CPaintDC dc(this);
CDC dcMemory;
CRect rect;
GetClientRect(&rect);
dcMemory.CreateCompatibleDC(NULL);
dcMemory.SelectObject(&m_Bitmap);
dc.StretchBlt(0,
0,
rect.right-rect.left,
rect.bottom-rect.top,
&dcMemory,
0,
0,
bmBitmap.bmWidth,
bmBitmap.bmHeight,
SRCCOPY);
}

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

return 0;
}

void CMsgWnd::SetPostion(int x, int y)
{
SetWindowPos(&wndTop, x, y, 350, 230, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}

[ygwh]

你总得说明白你想要做人家帮你做什么啊?
不知道你想知道什么,呵呵

[nntt]

CTestWndDlg::CTestWndDlg(CWnd* pParent /*=NULL*/)
: CDialog(CTestWndDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CTestWndDlg)
// NOTE: the ClassWizard will add member initialization here
pMsgWindow = NULL;
m_bTrack = FALSE;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTestWndDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CTestWndDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestWndDlg, CDialog)
//{{AFX_MSG_MAP(CTestWndDlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_WM_DESTROY()
ON_WM_MOUSEMOVE()
ON_WM_LBUTTONDOWN()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestWndDlg message handlers

BOOL CTestWndDlg::OnInitDialog()
{
CDialog::OnInitDialog();

// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon

pMsgWindow=new CMsgWnd;
pMsgWindow->CreateMsgWindow(this);

return TRUE; // return TRUE unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.

void CTestWndDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting

SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;

// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CTestWndDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}

void CTestWndDlg::OnDestroy()
{
if(pMsgWindow != NULL)
{
delete pMsgWindow;
pMsgWindow = NULL;
}
CDialog::OnDestroy();
}

void CTestWndDlg::OnMouseMove(UINT nFlags, CPoint point)
{
if(pMsgWindow != NULL)
{
pMsgWindow->ShowWindow(SW_HIDE);
}


if(!m_bTrack)
{
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(TRACKMOUSEEVENT);
tme.dwFlags = TME_LEAVE | TME_HOVER;
tme.hwndTrack = this->m_hWnd;
tme.dwHoverTime = 200;

m_bTrack = ::_TrackMouseEvent(&tme);
}
CDialog::OnMouseMove(nFlags, point);
}

LRESULT CTestWndDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_MOUSELEAVE:
m_bTrack = FALSE;
break;
case WM_MOUSEHOVER:
{
// POINT pt;
// GetCursorPos(&pt);
// if(pt.x + 350 > ::GetSystemMetrics (SM_CXSCREEN))
// {
// pt.x -= 350;
// }
// if(pt.x < 0)
// {
// pt.x = 0;
// }
// if(pt.y + 230 > ::GetSystemMetrics (SM_CYSCREEN))
// {
// pt.y -= 230;
// }
// if(pt.y < 0)
// {
// pt.y = 0;
// }
// if(pMsgWindow != NULL)
// {
// pMsgWindow->SetPostion(pt.x, pt.y);
// pMsgWindow->ShowWindow(SW_SHOWNOACTIVATE);
// }
}
break;
}

return CDialog::WindowProc(message, wParam, lParam);
}

BOOL CTestWndDlg::PreTranslateMessage(MSG* pMsg)
{
return CDialog::PreTranslateMessage(pMsg);
}

void CTestWndDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
CPoint pt;
GetCursorPos(&pt);


if(pt.x + 350 > ::GetSystemMetrics (SM_CXSCREEN))
{
pt.x -= 350;
}
if(pt.x < 0)
{
pt.x = 0;
}
if(pt.y + 230 > ::GetSystemMetrics (SM_CYSCREEN))
{
pt.y -= 230;
}
if(pt.y < 0)
{
pt.y = 0;
}
if(pMsgWindow != NULL)
{
pMsgWindow->SetPostion(pt.x, pt.y);
pMsgWindow->ShowWindow(SW_SHOWNOACTIVATE);
}

CDialog::OnLButtonDown(nFlags, point);
}

[nntt]

就是鼠标点击时，如果大于显示器屏幕，对话框显示不出来，我快崩溃了

[daiybh]

应该显示了得，只是位置不对，你整一个固定位置看看他是否显示出来了得

[Snow_Ice11111]

花了近一个小时，按楼主的代码建了个测试工程，其实已经显示出来了，只不过马上又隐藏起来了而已。把上面的这两行代码按如下改一下：
if(pt.x + 350 > ::GetSystemMetrics (SM_CXSCREEN))
{
pt.x -= 349; //改这里，减小一个像素
}
if(pt.x < 0)
{
pt.x = 0;
}
if(pt.y + 230 > ::GetSystemMetrics (SM_CYSCREEN))
{
pt.y -= 229; //改这里，也减小一个像素
}
吐血吧，就这么简单！

[只见烟火飞扬]

路过:)

[Snow_Ice11111]

另外，如果标志m_bTrack只是为了显示这个图片窗口的话，则形同虚设，当然和它相关的代码也没有用了，写下上述代码的仁兄完成不明白_TrackMouseEvent函数的用法，建议删去与m_bTrack相关的东西及如下代码：

if(!m_bTrack)
{
TRACKMOUSEEVENT tme;
tme.cbSize = sizeof(TRACKMOUSEEVENT);
tme.dwFlags = TME_LEAVE | TME_HOVER;
tme.hwndTrack = this->m_hWnd;
tme.dwHoverTime = 200;

m_bTrack = ::_TrackMouseEvent(&tme);
}

[nntt]

m_bTrack只是用来判断鼠标移开后的作用啊，比如要停留的时候设为FALSE，然后开始停留就为TRUE，停留后移开鼠标就为FALSE，如些反复，就像tooltip那样啊