如何将鼠标事件传递给基础元素？

Question

我有一个无边界的可移动表单（通过单击并按住鼠标按钮在周围拖曳）。仅当我单击表单空白时（例如，边距/填充区域。如何呈现控件（比如标签），使其不捕获鼠标事件，而是将其传递给基础表单元素？换句话说，我想单击此标签元素并拖动表单。 我能想到的最接近的是pointer-events: none中的CSS。

这是我用来使表格可移动的powershell代码：

function makeFormDraggable {
  param($form)
  Add-Type '
    using System;
    using System.ComponentModel;
    using System.Runtime.InteropServices;

    public class User32{
        //const and dll functions for moving form
        public const int WM_NCLBUTTONDOWN = 0xA1;
        public const int HT_CAPTION = 0x2;

        [DllImport("user32.dll")]
        public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);

        [DllImport("user32.dll")]
        public static extern bool ReleaseCapture();
    }
  '
  $onMouseDown = [System.Windows.Forms.MouseEventHandler] {
  #Event Argument: $_ = [System.Windows.Forms.MouseEventArgs]
    [user32]::ReleaseCapture()
    [user32]::SendMessage($form.Handle, [user32]::WM_NCLBUTTONDOWN, [user32]::HT_CAPTION, 0);
  }
  $form.Add_MouseDown($onMouseDown)
}