调用user32.dll为winform窗体设置阴影
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using System.Runtime.InteropServices; public partial class About : Form { public About() { InitializeComponent(); SetClassLong(Handle, GCL_STYLE, GetClassLong(Handle, GCL_STYLE) | CS_DropSHADOW); } #region 制作窗口阴影 private const int CS_DropSHADOW = 0X20000; private int GCL_STYLE = (-26); [DllImport("user32", CharSet = CharSet.Auto)] public static extern int SetClassLong(IntPtr hwnd, int nIndex, int dwNewLong); [DllImport("user32", CharSet = CharSet.Auto)] public static extern int GetClassLong(IntPtr hwnd, int nIndex); #endregion } |
