Vertical ScrollBar does not send WM_VSCROLL

Hi gurus,

To my view i added a horizontal and a vertical scrollbar.

They are both visible, but only the horizontal scrollbar sends WM_HSCROLL messages to the view when clicked on.

The vertical scrollbar does nothing when clicked on. How is this possible????

Both handlers and message maps are present. Breakpoint in OnHScroll() stops execution, but this does not work for OnVScroll().
Also spy++ does not record WM_VSCROLL messages.

This is how they are created:

Code:

---

CMyView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
...
// Create scrollbars
VERIFY(m_HorzScrollBar.Create(WS_CHILD|WS_VISIBLE|WS_HSCROLL,
        CRect(0,0,0,0), this, IDS_CTRL_HORZ_SB));

VERIFY(m_VertScrollBar.Create(WS_CHILD|WS_VISIBLE|WS_VSCROLL,
        CRect(0,0,0,0), this, IDS_CTRL_VERT_SB));

...
}

---

This is how i draw them:

Code:

---

void CMyView::OnDraw(CDC* pDC)
{
        CDocument* pDoc = GetDocument();
        // TODO: add draw code here

        CRect rcClient;
        GetClientRect(&rcClient);

        int iNewHeight = rcClient.bottom;
        int iNewWidth = rcClient.right;

        int iFolderTabWidth = m_FolderTabs.GetDesiredWidth();
        int iFolderTabLimit = (iNewWidth*4) / 5;
       
        if(iFolderTabWidth > iFolderTabLimit)
                iFolderTabWidth = iFolderTabLimit;

        m_FolderTabs.MoveWindow(0, iNewHeight - GetSystemMetrics(SM_CYHSCROLL),
                iFolderTabWidth, GetSystemMetrics(SM_CYHSCROLL), TRUE);

        // reposition and redraw the horizontal scroll bar
        m_HorzScrollBar.MoveWindow(
                iFolderTabWidth,
                iNewHeight - GetSystemMetrics(SM_CYHSCROLL),
        iNewWidth - iFolderTabWidth - GetSystemMetrics(SM_CXVSCROLL),
        GetSystemMetrics (SM_CYHSCROLL), TRUE);

        // reposition and redraw the horizontal scroll bar
        m_VertScrollBar.MoveWindow(
                iNewWidth - GetSystemMetrics(SM_CYHSCROLL),
        rcClient.top,
        GetSystemMetrics(SM_CYHSCROLL),
        iNewHeight - GetSystemMetrics(SM_CYHSCROLL), TRUE);


        SCROLLINFO si;
        ZeroMemory (&si, sizeof (SCROLLINFO));
        si.cbSize = sizeof (SCROLLINFO);
        si.fMask = SIF_RANGE | SIF_POS | SIF_PAGE;
        si.nMin = 0;
        si.nMax = 10;
        si.nPos = 5;
        si.nPage = 1;

        m_HorzScrollBar.SetScrollInfo (&si, TRUE);
        m_VertScrollBar.SetScrollInfo (&si, TRUE);


}

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Never mind, i figured it out. I passed the wrong styles for the scrollbars :)

Should be:

Code:

---

// Create scrollbars
        VERIFY(m_HorzScrollBar.Create(WS_CHILD|WS_VISIBLE|SBS_HORZ,
                CRect(0,0,0,0), this, IDS_CTRL_HORZ_SB));

        VERIFY(m_VertScrollBar.Create(WS_CHILD|WS_VISIBLE|SBS_VERT,
                CRect(0,0,0,0), this, IDS_CTRL_VERT_SB));

---

Quote:

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Originally Posted by hmc

Never mind, i figured it out. I passed the wrong styles for the scrollbars :)

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Well, no problem. Can happen to anybody anytime.
But I have to remark that was a cute mistake, i.e. trying to create a scrolbar control having a scrolbar. Just :)