init branch

src/Shared/HandyControl_Shared/Controls/Button/SplitButton.cs

@@ -0,0 +1,18 @@
+using System.Windows;
+using System.Windows.Controls.Primitives;
+using HandyControl.Data.Enum;
+
+namespace HandyControl.Controls
+{
+    public class SplitButton : ButtonBase
+    {
+        public static readonly DependencyProperty HitModeProperty = DependencyProperty.Register(
+            "HitMode", typeof(MouseHitMode), typeof(SplitButton), new PropertyMetadata(default(MouseHitMode)));
+
+        public MouseHitMode HitMode
+        {
+            get => (MouseHitMode) GetValue(HitModeProperty);
+            set => SetValue(HitModeProperty, value);
+        }
+    }
+}