X-Git-Url: http://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=form%2Ffrm_sub.c;h=8f1de099cdf6e65c311435ac483baea1c2d991da;hb=ac1479a2aceab5094e64da97ae11dde43c942d7a;hp=849f9cb0c3b24dcaddbdba71ebb2b32be589ade5;hpb=0eb88fc5281804773e2a0c7a488a4452463535ce;p=ncurses.git

diff --git a/form/frm_sub.c b/form/frm_sub.c
index 849f9cb0..8f1de099 100644
--- a/form/frm_sub.c
+++ b/form/frm_sub.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ * Copyright 2020,2021 Thomas E. Dickey                                     *
+ * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -27,43 +28,60 @@
  ****************************************************************************/
 
 /****************************************************************************
- *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
+ *   Author:  Juergen Pfeifer, 1995-1997,2009                               *
  ****************************************************************************/
 
 #include "form.priv.h"
 
-MODULE_ID("$Id: frm_sub.c,v 1.4 1999/05/16 17:22:11 juergen Exp $")
+MODULE_ID("$Id: frm_sub.c,v 1.15 2021/06/17 21:20:30 tom Exp $")
 
 /*---------------------------------------------------------------------------
-|   Facility      :  libnform  
+|   Facility      :  libnform
 |   Function      :  int set_form_sub(FORM *form, WINDOW *win)
-|   
-|   Description   :  Set the subwindow of the form to win. 
+|
+|   Description   :  Set the subwindow of the form to win.
 |
 |   Return Values :  E_OK       - success
 |                    E_POSTED   - form is posted
 +--------------------------------------------------------------------------*/
-int set_form_sub(FORM * form, WINDOW * win)
+FORM_EXPORT(int)
+set_form_sub(FORM *form, WINDOW *win)
 {
-  if (form && (form->status & _POSTED))	
+  T((T_CALLED("set_form_sub(%p,%p)"), (void *)form, (void *)win));
+
+  if (form && (form->status & _POSTED))
     RETURN(E_POSTED);
+  else
+    {
+#if NCURSES_SP_FUNCS
+      FORM *f = Normalize_Form(form);
 
-  Normalize_Form( form )->sub = win;
-  RETURN(E_OK);
-}	
+      f->sub = win ? win : StdScreen(Get_Form_Screen(f));
+      RETURN(E_OK);
+#else
+      Normalize_Form(form)->sub = win;
+      RETURN(E_OK);
+#endif
+    }
+}
 
 /*---------------------------------------------------------------------------
-|   Facility      :  libnform  
+|   Facility      :  libnform
 |   Function      :  WINDOW *form_sub(const FORM *)
-|   
+|
 |   Description   :  Retrieve the window of the form.
 |
 |   Return Values :  The pointer to the Subwindow.
 +--------------------------------------------------------------------------*/
-WINDOW *form_sub(const FORM * form)
+FORM_EXPORT(WINDOW *)
+form_sub(const FORM *form)
 {
-  const FORM* f = Normalize_Form( form );
-  return Get_Form_Window(f);
+  const FORM *f;
+
+  T((T_CALLED("form_sub(%p)"), (const void *)form));
+
+  f = Normalize_Form(form);
+  returnWin(Get_Form_Window(f));
 }
 
 /* frm_sub.c ends here */