🚀 go-pugleaf

Hi everyone,
I have a problem with my basic MDI application. When I maximize a child
window, it
does not make its Min/Max/Close buttons appear in the main window (MDI
frame) menu.
Why ? Here are the MDI-related parts of my program :

/* WinMain function */
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR
cmdParam, int cmdShow)
{
 ...
 wc.lpfnWndProc = MainWindow_WndProc;
 wc.lpszClassName = CLASS_NAME;
 ...
 RegisterClass(&wc);

 wc.lpfnWndProc = Portfolio_WndProc;
 wc.lpszMenuName = NULL;
 wc.lpszClassName = "Portfolio";
 RegisterClass(&wc);
 ...

 g_hMainWindow = CreateWindow(CLASS_NAME,
         "Stocks Analyzer",
         WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
         CW_USEDEFAULT, CW_USEDEFAULT,
         GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN),
         NULL,
         NULL,
         g_hInstance,
         NULL);
}

/* Main frame window procedure */
LRESULT CALLBACK MainWindow_WndProc(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam)
{
 switch (message)
 {
  case WM_CREATE:
  {
   CLIENTCREATESTRUCT ccs;

   ccs.hWindowMenu = GetSubMenu(GetMenu(hwnd), 0);
   ccs.idFirstChild = 9000;

   g_hMDIClient = CreateWindow("MDICLIENT", NULL,
          WS_CHILD | WS_CLIPCHILDREN | WS_VISIBLE,
          0, 0, 0, 0,
          hwnd,
          (HMENU) 8500,
          g_hInstance,
          (LPSTR) &ccs);

   return 0;
  }
 ...
 }

 return DefFrameProc(hwnd, g_hMDIClient, message, wParam, lParam);
}

/* Menu command "New" handler, which creates a child window */
void MenuFile_New(void)
{
 g_hPortfolio = CreateMDIWindow("Portfolio",
           "Mon portefeuille",
           0,
           CW_USEDEFAULT,
           CW_USEDEFAULT,
           600,
           500,
           g_hMDIClient,
           g_hInstance,
           NULL
           );
}

/* Child window procedure */
LRESULT CALLBACK Portfolio_WndProc(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam)
{
...
 return DefMDIChildProc(hwnd, message, wParam, lParam);
}

When I run the program, the MDI client windows appears on the main frame
client area. When I
click on "New" from the menu, a child window appears inside the MDI client
window client area,
but when I maximize this window, its buttons don't appear at the right of
the frame window's
menu bar (as it works in UltraEdit for instance). How come ?

Thanks in advance,
Mark