Update README.md (#1328)

tutorials/Mouse_Events/README.md

@@ -208,4 +208,39 @@ fun main() = singleWindowApplication {
 ```
 <img alt="Application running" src="mouse_event.gif" height="500" />
 
-If you need more information about events there is an available raw AWT mouse event object in `mouseEvent` property of `PointerEvent`
+### Swing interoperability
+
+Compose for Desktop uses Swing underneath and allows to access raw AWT events:
+
+```kotlin
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material.Text
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.pointer.*
+import androidx.compose.ui.window.singleWindowApplication
+
+fun main() = singleWindowApplication {
+    var text by remember { mutableStateOf("") }
+
+    Box(
+        Modifier.fillMaxSize().pointerInput(Unit) {
+            while (true) {
+                val event = awaitPointerEventScope { awaitPointerEvent() }
+                val awtEvent = event.mouseEvent
+                if (event.type == PointerEventType.Press) {
+                    text = awtEvent?.locationOnScreen?.toString().orEmpty()
+                }
+            }
+        },
+        contentAlignment = Alignment.Center
+    ) {
+        Text(text)
+    }
+}
+```