From 1497b881c6d13c5e037dcd57988029df0b0e50eb Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 12 May 2021 08:57:45 +0800
Subject: ...

---
 include/cru/platform/gui/Base.hpp   | 7 +++++++
 include/cru/platform/gui/Window.hpp | 1 +
 2 files changed, 8 insertions(+)

(limited to 'include/cru/platform')

diff --git a/include/cru/platform/gui/Base.hpp b/include/cru/platform/gui/Base.hpp
index 7a9d1889..fd9d265c 100644
--- a/include/cru/platform/gui/Base.hpp
+++ b/include/cru/platform/gui/Base.hpp
@@ -31,6 +31,13 @@ struct NativeMouseButtonEventArgs {
   KeyModifier modifier;
 };
 
+struct NativeMouseWheelEventArgs {
+  // Positive means down. Negative means up. 
+  float delta;
+  Point point;
+  KeyModifier modifier;
+};
+
 struct NativeKeyEventArgs {
   KeyCode key;
   KeyModifier modifier;
diff --git a/include/cru/platform/gui/Window.hpp b/include/cru/platform/gui/Window.hpp
index 26d1a476..b2129322 100644
--- a/include/cru/platform/gui/Window.hpp
+++ b/include/cru/platform/gui/Window.hpp
@@ -49,6 +49,7 @@ struct INativeWindow : virtual INativeResource {
   virtual IEvent<Point>* MouseMoveEvent() = 0;
   virtual IEvent<NativeMouseButtonEventArgs>* MouseDownEvent() = 0;
   virtual IEvent<NativeMouseButtonEventArgs>* MouseUpEvent() = 0;
+  virtual IEvent<NativeMouseWheelEventArgs>* MouseWheelEvent() = 0;
   virtual IEvent<NativeKeyEventArgs>* KeyDownEvent() = 0;
   virtual IEvent<NativeKeyEventArgs>* KeyUpEvent() = 0;
 
-- 
cgit v1.2.3