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Proper (more or less) implementation of newterm(); allow error return

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from set_term().
This commit is contained in:
William McBrine
2006-02-27 08:53:43 +00:00
parent d187b18759
commit 9b9cefde2e
1 changed files with 13 additions and 9 deletions
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22
pdcurses/initscr.c
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@@ -43,7 +43,7 @@
#ifdef PDCDEBUG
const char *rcsid_initscr =
"$Id: initscr.c,v 1.37 2006/02/23 01:46:52 wmcbrine Exp $";
"$Id: initscr.c,v 1.38 2006/02/27 08:53:43 wmcbrine Exp $";
#endif
const char *_curses_notice = "PDCurses 2.8 - Public Domain 2006";
@@ -141,7 +141,7 @@ extern void (*PDC_initial_slk)(void);
newterm() for each terminal instead of initscr(). The newterm()
function should be called once for each terminal. It returns a
value of type SCREEN* which should be saved as a reference to
that terminal. The arguments are the type of of terminal to be
that terminal. The arguments are the type of terminal to be
used in place of TERM (environment variable), a file pointer for
output to the terminal and another file pointer for input from
the terminal. The program must also call endwin() for each
@@ -161,14 +161,14 @@ extern void (*PDC_initial_slk)(void);
has been resized by external means, and requires a call to
resize_term().
Due to the fact that newterm() does not yet exist in PDCurses,
there is no way to recover from an error in initscr().
PDCurses supports only one terminal via newterm() or set_term(),
and the parameters are ignored.
By default, curses will set default attributes to white on
black. If you want to use the attributes of the current terminal
to be the defaults, set the environment variable:
PDC_ORIGINAL_COLORS to any value before calling initscr().
(Currently only effective under Win32)
to be the defaults, set the environment variable
PDC_ORIGINAL_COLORS to any value before calling initscr()
(currently only effective under Win32).
X/Open Return Value:
All functions return NULL on error, except endwin(), which
@@ -372,9 +372,13 @@ bool isendwin(void)
SCREEN *newterm(char *type, FILE *outfd, FILE *infd)
{
WINDOW *result;
PDC_LOG(("newterm() - called\n"));
return NULL;
result = Xinitscr(0, NULL);
return result ? SP : NULL;
}
SCREEN *set_term(SCREEN *new)
@@ -383,7 +387,7 @@ SCREEN *set_term(SCREEN *new)
/* We only support one screen */
return SP;
return (new == SP) ? SP : NULL;
}
void delscreen(SCREEN *sp)