+/****************************************************************************
+ * Copyright 2022 Thomas E. Dickey *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+/*
+ * $Id: test_unget_wch.c,v 1.2 2022/04/09 23:47:04 tom Exp $
+ *
+ * Demonstrate the unget_wch and unget functions.
+ */
+
+#include <test.priv.h>
+
+#if USE_WIDEC_SUPPORT && HAVE_UNGET_WCH
+int
+main(void)
+{
+ int step = 0;
+
+ initscr();
+ keypad(stdscr, TRUE);
+ cbreak();
+ noecho();
+ scrollok(stdscr, TRUE);
+
+ for (;;) {
+ wint_t widechar;
+ int rc = get_wch(&widechar);
+ if (rc == KEY_CODE_YES) {
+ printw("KEY[%d] %s\n", ++step, keyname((int) widechar));
+ ungetch((int) widechar);
+ printw("...[%d] %s\n", step, keyname(getch()));
+ } else if (widechar == QUIT || widechar == ESCAPE) {
+ break;
+ } else {
+ printw("CHR[%d] %s\n", ++step, key_name((wchar_t) widechar));
+ unget_wch((wchar_t) widechar);
+ rc = get_wch(&widechar);
+ printw("%s[%d] %s\n",
+ ((rc == KEY_CODE_YES)
+ ? "???"
+ : "..."),
+ step, key_name((wchar_t) widechar));
+ }
+ }
+
+ endwin();
+
+ ExitProgram(EXIT_SUCCESS);
+}
+
+#else
+int
+main(void)
+{
+ printf("This program requires the wide-ncurses library\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif
projects / ncurses.git / commitdiff