I am creating a dialog, it’s inherited from CDialogEx (dialog class name DockColorDlg), and create another class (ColorDockable) that’s inheriting from the CDockablePane class. And in my ColorDockable class I am creating the instanced of the DockColorDlg (DockColorDlg m_wndDialog).

I am creating a dialog, it’s inherited from CDialogEx(dialog class name DockColorDlg ) , and create another class(ColorDockable) that’s inheriting CDockablePane class. And in my ColorDockable class I am creating the instanced of the DockColorDlg (DockColorDlg m_wndDialog).
Now I am calling from my Mainfram.cpp and create the dock able window, when I am implementing this then it will work, but after few times or a few build it will not create the window