diff --git a/cef/buffer-panel.go b/cef/buffer-panel.go
index e9558187..191097a3 100644
--- a/cef/buffer-panel.go
+++ b/cef/buffer-panel.go
@@ -1218,14 +1218,14 @@ func (m *TBufferPanel) SetOnMouseMove(fn lcl.TMouseMoveEvent) {
 // 设置鼠标抬起事件。
 //
 // Set Mouse lift event.
-func (m *TBufferPanel) SetOnMouseUp(fn TMouseEvent) {
+func (m *TBufferPanel) SetOnMouseUp(fn lcl.TMouseEvent) {
 	imports.SysCallN(def.BufferPanel_SetOnMouseUp, m.Instance(), api.MakeEventDataPtr(fn))
 }
 
 // SetOnResize
 //
 // 设置大小被改变事件。
-func (m *TBufferPanel) SetOnResize(fn TNotifyEvent) {
+func (m *TBufferPanel) SetOnResize(fn lcl.TNotifyEvent) {
 	imports.SysCallN(def.BufferPanel_SetOnResize, m.Instance(), api.MakeEventDataPtr(fn))
 }
 
@@ -1875,3 +1875,7 @@ func (m *TBufferPanel) OrigPopupScanlineSize() int32 {
 func (m *TBufferPanel) SetOnPaintParentBkg(fn lcl.TNotifyEvent) {
 	imports.SysCallN(def.BufferPanel_SetOnPaintParentBkg, m.Instance(), api.MakeEventDataPtr(fn))
 }
+
+func (m *TBufferPanel) SetOnMouseWheel(fn lcl.TMouseWheelEvent) {
+	imports.SysCallN(def.BufferPanel_SetOnMouseWheel, m.Instance(), api.MakeEventDataPtr(fn))
+}
diff --git a/cef/internal/def/proc-def-index.go b/cef/internal/def/proc-def-index.go
index 34939860..9f9b4db3 100644
--- a/cef/internal/def/proc-def-index.go
+++ b/cef/internal/def/proc-def-index.go
@@ -2207,6 +2207,7 @@ const (
 	BufferPanel_SetOnPointerUp
 	BufferPanel_SetOnPointerUpdate
 	BufferPanel_SetOnPaintParentBkg
+	BufferPanel_SetOnMouseWheel
 	// TString
 	TString_Create
 	TString_Free
diff --git a/cef/internal/def/proc-def.go b/cef/internal/def/proc-def.go
index 299bba7d..016456cd 100644
--- a/cef/internal/def/proc-def.go
+++ b/cef/internal/def/proc-def.go
@@ -2207,6 +2207,7 @@ func init() {
 		dllimports.NewEnergyImport("BufferPanel_SetOnPointerUp", 0),
 		dllimports.NewEnergyImport("BufferPanel_SetOnPointerUpdate", 0),
 		dllimports.NewEnergyImport("BufferPanel_SetOnPaintParentBkg", 0),
+		dllimports.NewEnergyImport("BufferPanel_SetOnMouseWheel", 0),
 		// TString
 		dllimports.NewEnergyImport("TString_Create", 0),
 		dllimports.NewEnergyImport("TString_Free", 0),