--- /dev/null
+#include <conio.h>
+#include <ctype.h>
+#include <stdio.h>
+
+int main() {
+ printf("\nPress any keys -- Ctrl-D exits\n\n");
+
+ while (true) {
+ const int ch = getch();
+ printf("0x%x", ch);
+ if (isgraph(ch)) {
+ printf(" '%c'", ch);
+ }
+ printf("\n");
+ if (ch == 0x4) { // Ctrl-D
+ break;
+ }
+ }
+ return 0;
+}