1 files changed, 25 insertions, 0 deletions
diff --git a/src/event_tap.h b/src/event_tap.h
new file mode 100644
index 0000000..b126ce4
--- /dev/null
+++ b/src/event_tap.h
@@ -0,0 +1,25 @@
+#ifndef SKHD_EVENT_TAP_H
+#define SKHD_EVENT_TAP_H
+
+#include <stdbool.h>
+#include <Carbon/Carbon.h>
+
+struct event_tap
+{
+    CFMachPortRef handle;
+    CFRunLoopSourceRef runloop_source;
+    CGEventMask mask;
+};
+
+#define EVENT_TAP_CALLBACK(name) \
+    CGEventRef name(CGEventTapProxy proxy, \
+                    CGEventType type, \
+                    CGEventRef event, \
+                    void *reference)
+typedef EVENT_TAP_CALLBACK(event_tap_callback);
+
+bool event_tap_enabled(struct event_tap *event_tap);
+bool event_tap_begin(struct event_tap *event_tap, event_tap_callback *callback);
+void event_tap_end(struct event_tap *event_tap);
+
+#endif