把IE里的一个url超链接拖到自己窗口里，如何知道这个赵链接的url？

Question

把IE里的一个url超链接拖到自己窗口里，如何知道这个赵链接的url？

Answer 1

IE的URL能拖吗?我这里不行,如果可以你去看看OLE GRAG范围的东西,可能会有用.

Answer 2

#define WM_TL_DragEnter (WM_USER + 4)
#define WM_TL_DragOver (WM_USER + 5)
#define WM_TL_DragLeave (WM_USER + 6)
#define WM_TL_Drop (WM_USER + 7)typedef struct 
{
COleDataObject* pDataObject;
DWORD dwKeyState;
CPoint point;
DROPEFFECT dropEffect;
} TlDragParam;class CMyOleDropTarget : public COleDropTarget
{
public:
TlDragParam m_DragParam;
public:
virtual DROPEFFECT OnDragEnter(CWnd* pWnd, COleDataObject* pDataObject, DWORD dwKeyState, CPoint point)
{ 
m_DragParam.pDataObject = pDataObject;
m_DragParam.dwKeyState = dwKeyState;
m_DragParam.point = point;
return pWnd->SendMessage(WM_TL_DragEnter, (WPARAM)&m_DragParam, 0);
};
virtual DROPEFFECT OnDragOver(CWnd* pWnd, COleDataObject* pDataObject, DWORD dwKeyState, CPoint point)
{ 
m_DragParam.pDataObject = pDataObject;
m_DragParam.dwKeyState = dwKeyState;
m_DragParam.point = point;
return pWnd->SendMessage(WM_TL_DragOver, (WPARAM)&m_DragParam, 0);
};
virtual BOOL OnDrop(CWnd* pWnd, COleDataObject* pDataObject, DROPEFFECT dropEffect, CPoint point)
{ 
m_DragParam.pDataObject = pDataObject;
m_DragParam.dropEffect = dropEffect;
m_DragParam.point = point;
return pWnd->SendMessage(WM_TL_Drop, (WPARAM)&m_DragParam, 0);
};
virtual void OnDragLeave(CWnd* pWnd)
{
pWnd->SendMessage(WM_TL_DragLeave,0,0);
};
};class CMyDlg : public CDialog
{
  ....
private:
   CMyOleDropTarget m_drop;
  ....
}BOOL CMyDlg::OnInitDialog()
{
  CDialog::OnInitDialog();
  m_drop.Register(this);
}LRESULT CMyDlg::OnDrop(WPARAM wParam, LPARAM lParam)
{
TlDragParam *pDragParam = (TlDragParam *)wParam;
if (!pDragParam->pDataObject->IsDataAvailable(CF_TEXT))
return FALSE;
HGLOBAL hmem = pDragParam->pDataObject->GetGlobalData(CF_TEXT);
if(!hmem)
return DROPEFFECT_NONE;
DROPFILES * pDropFiles = (DROPFILES *)::GlobalLock(hmem);
LPBYTE lpBuffer = (BYTE *)pDropFiles;
CString strUrl;
strUrl.Format(_T("%S"),(LPCWSTR)lpBuffer);
return 0;
}

Answer 3

LRESULT CMyDlg::OnDrop(WPARAM wParam, LPARAM lParam)
{
TlDragParam *pDragParam = (TlDragParam *)wParam;
if (!pDragParam->pDataObject->IsDataAvailable(CF_TEXT))
return FALSE;
HGLOBAL hmem = pDragParam->pDataObject->GetGlobalData(CF_TEXT);
if(!hmem)
return DROPEFFECT_NONE;
LPBYTE lpBuffer = (LPBYTE)::GlobalLock(hmem);
CString strUrl;
strUrl.Format(_T("%S"),(LPCWSTR)lpBuffer);
return 0;
}