通过下面代码在构造函数中调用方法 SetShadow(); 即可实现无边框窗体的阴影效果了 需要添加命名空间 using System.Runtime.InteropServices; private const int CS_DropSHADOW = 0x20000; ); [DllImport("user32.dll", CharSet = CharSet.Auto)] public static extern int SetClassLong(IntPtr hwnd, int n
主窗体中代码: public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void btnOpen_Click(object sender, EventArgs e) {//点击弹出方法 FrmChild frmChild = new FrmChild(); frmChild.ShowDialog(); if (frmChild.DialogResult == System.Wind