This article is part of the drag and drop interface samples.
- Serializing ASCII Data
- Modeless child dialog
- Modeless sibling dialog
- The drag source
- The MFC drop target
- The TBTextTarget class
To create the modeless dialog as sibling, follow this link.
Follow these steps:
- Create a new dialog resource and use the Class Wizard for making a new
CDialog
based class for it; let's call it CDropDialog
. - In your
CFormView
-derived class, add a (private
) member variable of type CDropDialog*
as a container for the modeless dialog class, let's call it m_pModeless
. In the constructor of your view, make sure you initialize m_pModeless
to NULL
. - In your appropriate message handler, let's call it
OnModeless
, do the following:
void CInterfaceView::OnModeless()
{
if (!m_pModeless)
m_pModeless = new CDropDialog;
if (!::IsWindow(m_pModeless->GetSafeHwnd()))
m_pModeless->Create(IDD_DIALOG1, this);
m_pModeless->ShowWindow(SW_SHOW);
}
In the destructor of the parent window, proof if the dialog has been closed and release the memory:
CInterfaceView::~CInterfaceView()
{
if (m_pModeless)
{
if (::IsWindow(m_pModeless->GetSafeHwnd()))
m_pModeless->EndDialog(IDCANCEL);
delete m_pModeless;
}
}
License
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