Hello!:

Here is my question:

When you are using the CXTPFrameWnd class as the base class from which CMainFrame is derived in a SDI application, ¿is the access to the document class lost? I mean, I´ve noticed there is no longer GetActiveDocument() function available. With CXTPMDIFrameWnd everything works fine, but I need a SDI application instead of a MDI one. I have data stored in the CDocument class and I need to access to that data from the MainFrame, but as I´ve derived this from CXTPFrameWnd in order to use Docking Panes on it, I have lost all the functions provided by CFrameWnd.

I hope you are so kind to help me, thanks.

Give me your non-working piece of code.

I added

CDocument* pDocument = GetActiveDocument(); in void CMainFrame::OnCustomize()

of GUI_ACDSee sample and it works.

Check may be you have

class CMainFrame : CXTPFrameWnd

instead of

class CMainFrame : public CXTPFrameWnd

Thank you very much!

Indeed the problem was derived from a bad interpretation of the code. As CXTPFrameWnd derives from CXTPFrameWndBase as a template Visual C++ does not show the GetActiveDocument() function on its help devices, but if you use it... well, there it is.