1 files changed, 4 insertions, 5 deletions
diff --git a/examples/heterogeneous-hello-world/main.slang b/examples/heterogeneous-hello-world/main.slang
index 2a9c1eaf1..b852ca1a1 100644
--- a/examples/heterogeneous-hello-world/main.slang
+++ b/examples/heterogeneous-hello-world/main.slang
@@ -4,9 +4,9 @@ __target_intrinsic(cpp, "printf(\"%s\", ($0).getBuffer())")
 public void writeln(String text);
 
 [DllImport("User32")]
-int MessageBoxA(Ptr<void> hwnd, String text, String caption, uint flags);
+int MessageBoxA(void* hwnd, String text, String caption, uint flags);
 
-[COM]
+[COM("111702C2-2FD7-46F9-A318-DCCEEC96357E")]
 interface IObject
 {
     int getValue(int value) throws int;
@@ -17,9 +17,8 @@ IObject createObject();
 
 public __extern_cpp void main() throws int
 {
-    //writeln("hello world");
-    //MessageBoxA(nullptr, "hello world!", "example", 0);
-
+    writeln("hello world");
+    MessageBoxA(nullptr, "hello world!", "example", 0);
     IObject object = createObject();
 
     int rs = try object.getValue(2);