adding a bunch of code (vesa, keyb, mouse, etc) to the menu

[cdmenu] / menu / src / dos / keyb.h

diff --git a/menu/src/dos/keyb.h b/menu/src/dos/keyb.h
new file mode 100644 (file)
index 0000000..46b6aa4
--- /dev/null
+++ b/menu/src/dos/keyb.h
@@ -0,0 +1,55 @@
+/*
+DOS interrupt-based keyboard driver.
+Copyright (C) 2013-2023  John Tsiombikas <nuclear@member.fsf.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License  for more details.
+
+You should have received a copy of the GNU General Public License
+along with the program. If not, see <http://www.gnu.org/licenses/>
+*/
+#ifndef KEYB_H_
+#define KEYB_H_
+
+#include "app.h"
+
+#define KB_ANY         (-1)
+#define KB_ALT         (-2)
+#define KB_CTRL                (-3)
+#define KB_SHIFT       (-4)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void kb_init(void);
+void kb_shutdown(void); /* don't forget to call this at the end! */
+
+/* Boolean predicate for testing the current state of a particular key.
+ * You may also pass KB_ANY to test if any key is held down.
+ */
+int kb_isdown(int key);
+
+/* waits for any keypress */
+void kb_wait(void);
+
+/* removes and returns a single key from the input buffer.
+ * If buffering is disabled (initialized with kb_init(0)), then it always
+ * returns the last key pressed.
+ */
+int kb_getkey(void);
+
+void kb_putback(int key);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* KEYB_H_ */