How to get tooltip text for a given HWND?

Question

I\'m looking for a way to get the tooltip control (if any) which is associated with a given HWND. The text of the tooltip control would be sufficient, too. The closest thing

Answer 1

You could enumerate the windows looking for a tooltip control that has a parent of the required window. You'll need to supply the window together with the tool id (normally from GetDlgCtrlID)...:

HWND hToolTipWnd = NULL;

BOOL GetToolTipText(HWND hWnd, UINT nId, std::wstring& strTooltip)
{
    hToolTipWnd = NULL;
    EnumWindows(FindToolTip, (LPARAM)hWnd);

    if (hToolTipWnd == NULL)
        return FALSE;

    WCHAR szToolText[256];
    TOOLINFO ti;
    ti.cbSize = sizeof(ti);
    ti.hwnd = hWnd;
    ti.uId = nId;
    ti.lpszText = szToolText;

    SendMessage(hToolTipWnd, TTM_GETTEXT, 256, (LPARAM)&ti);
    strTooltip = szToolText;

    return TRUE;
}

BOOL CALLBACK FindToolTip(HWND hWnd, LPARAM lParam)
{
    WCHAR szClassName[256];
    if (GetClassName(hWnd, szClassName, 256) == 0)
        return TRUE;

    if (wcscmp(szClassName, L"tooltips_class32") != 0)
        return TRUE;
    if (GetParent(hWnd) != (HWND)lParam)
        return TRUE;

    hToolTipWnd = hWnd;

    return FALSE;
}