using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.ServiceModel; using System.Runtime.InteropServices; namespace MyWeather { public partial class Form1 : Form { [StructLayout(LayoutKind.Sequential)] public struct MARGINS { public int Left; public int Right; public int Top; public int Bottom; } [DllImport("dwmapi.dll", PreserveSig = false)] static extern void DwmExtendFrameIntoClientArea(IntPtr hwnd, ref MARGINS margins); [DllImport("dwmapi.dll", PreserveSig = false)] static extern bool DwmIsCompositionEnabled(); public Form1() { InitializeComponent(); } protected override void OnLoad(EventArgs e) { if (DwmIsCompositionEnabled()) { MARGINS margins = new MARGINS(); margins.Right = margins.Left = margins.Top = margins.Bottom = this.Width + this.Height; DwmExtendFrameIntoClientArea(this.Handle, ref margins); } base.OnLoad(e); } protected override void OnPaintBackground(PaintEventArgs e) { base.OnPaintBackground(e); if (DwmIsCompositionEnabled()) { e.Graphics.Clear(Color.Black); } } } }