拖拉显示(恳请高手)

SDI 左右两个视图,均为TreeView,从右边向左视图拖拉,右边好好的,到左边不能显示拖拉的图像.代码如下,谢谢各位,问题解决给分.

        //右视图开始拖拉的

void CClientView::OnBegindrag(NMHDR* pNMHDR, LRESULT* pResult)

{

	CTreeCtrl& tree = GetTreeCtrl()

	m_bDraggingNow = TRUE;

	m_hDraggedItem = pNMTreeView->itemNew.hItem;//保存变量

         tree.Select(m_hDraggedItem, TVGN_CARET);

        m_pDragImageList = tree.CreateDragImage(m_hDraggedItem);

	m_pDragImageList->DragEnter(&tree, pNMTreeView->ptDrag);

        m_pDragImageList->BeginDrag(0, CPoint(10, 10));

}

//右视图鼠标拖动消息

void CClientView::OnMouseMove(UINT nFlags, CPoint point) 

{

	// TODO: Add your message handler code here and/or call default

	if (m_bDraggingNow)

		

	{

       CTreeCtrl& tree = GetTreeCtrl();

       m_pDragImageList->DragEnter(&tree, point);

       m_pDragImageList->DragMove(point);

	}

	CTreeView::OnMouseMove(nFlags, point);

}

//左视图

void CLeftView::OnMouseMove(UINT nFlags, CPoint point) 

{

CClientView      *pRight=((CMainFrame*)AfxGetMainWnd())->pRightView;

	CRect     ClientRect;

    if(!pRight->m_bDraggingNow)

         return;

	else

	{

          //pRight->GetTreeCtrl().;

          //this->GetClientRect()

	GetTreeCtrl().Select(pRight->m_hDraggedItem,TVGN_DROPHILITE);

	this->GetClientRect(&ClientRect);

	pRight->m_pDragImageList->DragEnter(&GetTreeCtrl(),point);

	point.x=point.x-(ClientRect.right-ClientRect.left);

	pRight->m_pDragImageList->DragMove(point);

	//pRight->m_pDragImageList->DragShowNolock(true);

	}

	CTreeView::OnMouseMove(nFlags, point);

}