cardmaker: hook, touch screen hook added

Thanks @domeori https://dev.s-ul.net/domeori/segatools/-/tree/mr-imports

cmio/cmio.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <windows.h>
+
+#include <stdint.h>
+
+enum {
+    CM_IO_OPBTN_TEST = 0x01,
+    CM_IO_OPBTN_SERVICE = 0x02,
+    CM_IO_OPBTN_COIN = 0x04,
+};
+
+/* Get the version of the CardMaker IO API that this DLL supports. This
+   function should return a positive 16-bit integer, where the high byte is
+   the major version and the low byte is the minor version (as defined by the
+   Semantic Versioning standard).
+
+   The latest API version as of this writing is 0x0100. */
+
+uint16_t cm_io_get_api_version(void);
+
+/* Initialize the IO DLL. This is the second function that will be called on
+   your DLL, after cm_io_get_api_version.
+
+   All subsequent calls to this API may originate from arbitrary threads.
+
+   Minimum API version: 0x0100 */
+
+HRESULT cm_io_init(void);
+
+/* Send any queued outputs (of which there are currently none, though this may
+   change in subsequent API versions) and retrieve any new inputs.
+
+   Minimum API version: 0x0100 */
+
+HRESULT cm_io_poll(void);
+
+/* Get the state of the cabinet's operator buttons as of the last poll. See
+   cm_IO_OPBTN enum above: this contains bit mask definitions for button
+   states returned in *opbtn. All buttons are active-high.
+
+   Minimum API version: 0x0100 */
+
+void cm_io_get_opbtns(uint8_t *opbtn);