/*----------------------------------------------------------------------------------------------
Attach the given hwnd to this AfWnd. This means that we save hwnd as m_hwns, and store a
pointer to this AfWnd object as the user data associated with the hwnd. This is normally
called when WM_CREATE is processed, but may be called at a later time, especially for
controls in dialogs.
@param hwnd Handle to a window.
----------------------------------------------------------------------------------------------*/
void AfWnd::AttachHwnd(HWND hwnd)
{
AssertObj(this);
Assert(hwnd != NULL);
if (m_hwnd)
{
if (m_hwnd == hwnd)
return;
AssertMsg(false, "AfWnd already attached to a different HWND.");
ThrowHr(E_FAIL);
}
AfWnd * pwnd = reinterpret_cast<AfWnd *>(::GetWindowLong(hwnd, GWL_USERDATA));
if (pwnd)
{
AssertMsg(false, "Hwnd already attached to an AfWnd");
ThrowHr(E_FAIL);
}
::SetWindowLong(hwnd, GWL_USERDATA, (long)this);
AddRef();
m_hwnd = hwnd;
PostAttach();
}
void AttachableComponent::Attach(TransformationNode * node)
{
if(node != m_Node)
{
Detach();
m_Node = node;
m_Node->NotifyAttach(this);
PostAttach();
}
}
