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  • 无边框窗体的移动和阴影

    //窗体移动API
    [DllImport("user32.dll")]
    public static extern bool ReleaseCapture();
    [DllImport("user32.dll")]
    public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int IParam);
    public const int WM_SYSCOMMAND = 0x0112;
    public const int SC_MOVE = 0xF010;
    public const int HTCAPTION = 0x0002;
    [DllImport("user32")]
    private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, IntPtr lParam);
    private const int WM_SETREDRAW = 0xB;
    
    
    
    private void Form1_MouseDown(object sender, MouseEventArgs e)
    {
        if (this.WindowState == FormWindowState.Normal)
        {
            ReleaseCapture();
            SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
        }
    }
    窗体移动API
         //窗体阴影API
            const int CS_DropSHADOW = 0x20000;
            const int GCL_STYLE = (-26);
            [DllImport("user32.dll", CharSet = CharSet.Auto)]
            public static extern int SetClassLong(IntPtr hwnd, int nIndex, int dwNewLong);
            [DllImport("user32.dll", CharSet = CharSet.Auto)]
            public static extern int GetClassLong(IntPtr hwnd, int nIndex);
    
    
            public Form1()
            {
                InitializeComponent();
                SetClassLong(this.Handle, GCL_STYLE, GetClassLong(this.Handle, GCL_STYLE) | CS_DropSHADOW);
            }
    窗体阴影API
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  • 原文地址:https://www.cnblogs.com/wt627939556/p/6160108.html
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