.net - 鼠标滚轮时试图判断鼠标是否在打开工具条菜单或上下文菜单项

Question

我有一个带有Toolstripand的 Winforms 应用程序Datagridview。

我正在尝试MouseWheeling基于ToolStripMenuItems此处的一些信息来实施：

• StackOverflow：鼠标滚轮滚动工具条菜单项

我已经添加了一个Mousewheel事件，DataGridView因为向基本表单添加一个事件没有触发。我的问题是我找不到一种方法来检测鼠标光标何时在 openToolstripMenu上，它总是说它在DataGridView.

我尝试了几种不同的方法，包括当前代码：

    Public Shared Function FindControlAtPoint(container As Control, pos As Point) As Control
        Dim child As Control
        For Each c As Control In container.Controls
            If c.Visible AndAlso c.Bounds.Contains(pos) Then
                child = FindControlAtPoint(c, New Point(pos.X - c.Left, pos.Y - c.Top))
                If child Is Nothing Then
                    Return c
                Else
                    Return child
                End If
            End If
        Next
        Return Nothing
    End Function

    Public Shared Function FindControlAtCursor(form As Form) As Control
        Dim pos As Point = Cursor.Position
        If form.Bounds.Contains(pos) Then
            Return FindControlAtPoint(form, form.PointToClient(Cursor.Position))
        End If
        Return Nothing
    End Function

1 鼠标滚轮滚动工具条菜单项