[Dev-C++] how to make dialog box at foreground?

[Jessica C. <jes...@gm...>]

dialog box1 (DLG1) and dialog box2 (DLG2) can be popped up in front of main
dialog box (IDD_MAIN).
then I tried to make main dialog box (defined by IDD_MAIN) to the foreground
by clicking on it.
but it doesn't work.  it stills as a background.
what is the problem here?

btw, DLG1 and DLG2 can shift to the foreground by clicking on them easily.

my structure of code is as follows.

WndProc()
{
  switch(msg)
  {
    WM_COMMAND:
      ID_1:  CreateDialog(g_hInst, "DLG1", hwnd, DlgProc1);
                   break;
      ID_2: CreateDialog(g_hInst, "DLG1", hwnd, DlgProc1);
                   break;
  }
  break;

}


WinMain()
{
 CreateDialog(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_MAIN),NULL,
WndProc);
}