C / C++ / MFC

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

m_MyControl.SubclassWindow (this, IDC_XXXXX)<code>.<br />
<br />
Another possibility is...<br />
<br />
<pre>
class CMyDialog : public CDialog
{
    ....
    CMyControl    m_MyControl;
    ....
};

BOOL CMyDialog::OnInitDialog ()
{
    ....
    CWnd *pReplace = GetDlgItem (IDC_XXXX); // Get the placeholder window
    CRect rcReplace;
    pReplace->GetWindowRect (&rcReplace); // not client!
    ScreenToClient (&rcReplace); // Now convert coords to the dialogs coord system.
    m_MyControl.Create ( this, &rcReplace, WS_VISIBLE | WS_ETC, IDC_XXXX); // Exact params depend on the class.
    m_MyControl.SetWindowPos (pReplace, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE); // Put the new control
                                                                           // place in the Tab / Z order.
    pReplace->DestroyWindow ();  // Remove placeholder.
    ....
}
</pre><br />
<br />
You might want a bit of error checking in there too! (ie. what if you forgot to make a IDC_XXXX control),<br />
I normally use IDC_PLACEHOLDER, but the constant name is up to you.<br />
<br />
Good luck,<br />
<br />
Iain.

BOOL GetVolumeInformation(<br />
  LPCTSTR lpRootPathName,<br />
  LPTSTR lpVolumeNameBuffer,<br />
  DWORD nVolumeNameSize,<br />
  LPDWORD lpVolumeSerialNumber,<br />
  LPDWORD lpMaximumComponentLength,<br />
  LPDWORD lpFileSystemFlags,<br />
  LPTSTR lpFileSystemNameBuffer,<br />
  DWORD nFileSystemNameSize<br />
);