Working example

sdl3/sdl3_guid.odin

@@ -0,0 +1,13 @@
+package sdl3
+
+import "core:c"
+
+GUID :: struct {
+	data: [16]Uint8,
+}
+
+@(default_calling_convention="c", link_prefix="SDL_")
+foreign lib {
+	GUIDToString :: proc(guid: GUID, pszGUID: [^]c.char, cbGUID: c.int) ---
+	StringToGUID :: proc(pchGUID: cstring) -> GUID ---
+}