Drag-n-Drop bug

Drag-n-Drop bug.

In the routine CXTPReportControl::OnMouseMove exists the following code:

        // If mouse moved some since down...
        if (m_bPrepareDrag && (labs (point.x - m_pointDrag.x) > 3 ||
            labs (point.x - m_pointDrag.x) > 3))
        {
            // Prevent duplicate
            m_bPrepareDrag = FALSE;

            // Begin a drag operation
            OnBeginDrag(m_pointDrag);
       }

There are two identical checks for point.x - m_pointDrag.x.  It seems that the second one should be point.y - m_pointDrag.y

This prevents rows from being dragged unless the mouse is moved horizontally greater than three.

If you have a view class derived from CXTPReportView, then the report control supports standard MFC drag-n-drop behavior.  The report control will not perform the drag-n-drop for you but you get the standard messages such that you can implement it in your view class.

You need to add the following routines in your view class:

    virtual DROPEFFECT OnDragEnter(COleDataObject* pDataObject, DWORD dwKeyState, CPoint point );
    virtual DROPEFFECT OnDragOver(COleDataObject* pDataObject, DWORD dwKeyState, CPoint point );
    virtual DROPEFFECT OnDropEx(COleDataObject* pDataObject, DROPEFFECT dropDefaultEffect, DROPEFFECT dropListEffect, CPoint point);
    virtual void OnDragLeave();
    afx_msg void OnReportBeginDrag(NMHDR * pNotifyStruct, LRESULT * result);

Also you need to add:
    ON_NOTIFY(LVN_BEGINDRAG, XTP_ID_REPORT_CONTROL, OnReportBeginDrag)   

Your code has to copy your records to the clipboard and paste them into your report control, but it can be done.

--Larry