1 files changed, 105 insertions, 0 deletions
diff --git a/winsup/utils/cygkeycheck.cc b/winsup/utils/cygkeycheck.cc
new file mode 100644
index 000000000..627f6c95c
--- /dev/null
+++ b/winsup/utils/cygkeycheck.cc
@@ -0,0 +1,105 @@
+/* cygkeycheck.cc
+
+   Copyright 2000 Cygnus Solutions.
+
+   This file is part of Cygwin.
+
+   This software is a copyrighted work licensed under the terms of the
+   Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+   details. */
+
+#include <stdio.h>
+#include <windows.h>
+
+char *myname;
+
+int
+eprint (const char *name)
+{
+  fprintf (stderr, "%s: %s failed: %lu\n", myname, name, GetLastError ());
+  return 1;
+}
+
+int
+main (int argc, char **argv)
+{
+  myname = argv[0];
+
+  HANDLE h = CreateFileA ("CONIN$", GENERIC_READ | GENERIC_WRITE,
+                          FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+                          OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+
+  if (h == INVALID_HANDLE_VALUE || h == NULL)
+    return eprint ("Opening CONIN$");
+
+  DWORD mode;
+
+  if (!GetConsoleMode (h, &mode))
+    eprint ("GetConsoleMode");
+  else
+    {
+      mode &= ~ENABLE_PROCESSED_INPUT;
+      if (!SetConsoleMode (h, mode))
+        eprint ("GetConsoleMode");
+    }
+
+  fputs ("\nThis key checker works only in a console window,", stderr);
+  fputs (" _NOT_ in a terminal session!\n", stderr);
+  fputs ("Abort with Ctrl+C if in a terminal session.\n\n", stderr);
+  fputs ("Press `q' to exit.\n", stderr);
+
+  INPUT_RECORD in, prev_in;
+
+  // Drop first <RETURN> key
+  ReadConsoleInput (h, &in, 1, &mode);
+
+  memset (&in, 0, sizeof in);
+
+  do
+    {
+      prev_in = in;
+      if (!ReadConsoleInput (h, &in, 1, &mode))
+        eprint ("ReadConsoleInput");
+
+      if (!memcmp (&in, &prev_in, sizeof in))
+        continue;
+
+      switch (in.EventType)
+        {
+        case KEY_EVENT:
+          printf ("%s %ux VK: 0x%02x VS: 0x%02x A: 0x%02x CTRL: ",
+                  in.Event.KeyEvent.bKeyDown ? "Pressed " : "Released",
+                  in.Event.KeyEvent.wRepeatCount,
+                  in.Event.KeyEvent.wVirtualKeyCode,
+                  in.Event.KeyEvent.wVirtualScanCode,
+                  (unsigned char) in.Event.KeyEvent.uChar.AsciiChar);
+          fputs (in.Event.KeyEvent.dwControlKeyState & CAPSLOCK_ON ?
+                 "CL " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & ENHANCED_KEY ?
+                 "EK " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & LEFT_ALT_PRESSED ?
+                 "LA " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & LEFT_CTRL_PRESSED ?
+                 "LC " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & NUMLOCK_ON ?
+                 "NL " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & RIGHT_ALT_PRESSED ?
+                 "RA " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & RIGHT_CTRL_PRESSED ?
+                 "RC " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & SCROLLLOCK_ON ?
+                 "SL " : "-- ", stdout);
+          fputs (in.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED ?
+                 "SH " : "-- ", stdout);
+          fputc ('\n', stdout);
+          break;
+
+        }
+    }
+  while (in.EventType != KEY_EVENT ||
+         in.Event.KeyEvent.bKeyDown != FALSE ||
+         in.Event.KeyEvent.uChar.AsciiChar != 'q');
+
+  CloseHandle (h);
+  return 0;
+}