如何使用C#制作窗体？

[shijies]

除了开发工具默认生成的窗体，制作新的窗体只能使用代码？

[datafansbj]

如果窗体在设计时已经做好，那么运行时只要 new，然后 show 即可。
如果窗体在运行时动态生成，那就需要编写代码来实现。
详见窗体的 .Designer.cs 文件，那个就是窗体的设计文件。

[desperaso]

winform的异形图像窗体、无框阴影窗体、动画窗体等等，搞窗体的路还很长
比如无框阴影的

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
  
namespace contextUI
{
    public partial class ConextForm : Form
    {
        public bool Sizeable = true;
  
        [DllImport("Gdi32.dll", EntryPoint = "CreateRoundRectRgn")]
        private static extern IntPtr CreateRoundRectRgn
        (
            int nLeftRect,
            int nTopRect,
            int nRightRect,
            int nBottomRect,
            int nWidthEllipse,
            int nHeightEllipse
        );
  
        [DllImport("dwmapi.dll")]
        public static extern int DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMarInset);
  
        [DllImport("dwmapi.dll")]
        public static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, ref int attrValue, int attrSize);
  
        [DllImport("dwmapi.dll")]
        public static extern int DwmIsCompositionEnabled(ref int pfEnabled);
  
        private bool m_aeroEnabled = false;
        private const int CS_DROPSHADOW = 0x00020000;
        private const int WM_NCPAINT = 0x0085;
        private const int WM_ACTIVATEAPP = 0x001C;
  
        public struct MARGINS
        {
            public int leftWidth;
            public int rightWidth;
            public int topHeight;
            public int bottomHeight;
        }
  
        private const int WM_NCHITTEST = 0x84;
        private const int HTCLIENT = 0x1;
        private const int HTCAPTION = 0x2;
  
        protected override CreateParams CreateParams
        {
            get
            {
                m_aeroEnabled = CheckAeroEnabled();
  
                CreateParams cp = base.CreateParams;
                if (!m_aeroEnabled)
                    cp.ClassStyle |= CS_DROPSHADOW;
  
                return cp;
            }
        }
  
        private bool CheckAeroEnabled()
        {
            if (Environment.OSVersion.Version.Major >= 6)
            {
                int enabled = 0;
                DwmIsCompositionEnabled(ref enabled);
                return (enabled == 1) ? true : false;
            }
            return false;
        }
  
        const int HTLEFT = 10;
        const int HTRIGHT = 11;
        const int HTTOP = 12;
        const int HTTOPLEFT = 13;
        const int HTTOPRIGHT = 14;
        const int HTBOTTOM = 15;
        const int HTBOTTOMLEFT = 0x10;
        const int HTBOTTOMRIGHT = 17;
  
        protected override void WndProc(ref Message m)
        {
            base.WndProc(ref m);
            switch (m.Msg)
            {
                case WM_NCPAINT:
                    if (m_aeroEnabled)
                    {
                        var v = 2;
                        DwmSetWindowAttribute(this.Handle, 2, ref v, 4);
                        MARGINS margins = new MARGINS()
                        {
                            bottomHeight = 1,
                            leftWidth = 1,
                            rightWidth = 1,
                            topHeight = 1
                        };
                        DwmExtendFrameIntoClientArea(this.Handle, ref margins);
  
                    }
                    break;
                case 0x0084:
                    if (Sizeable)
                    {
                        base.WndProc(ref m);
                        Point vPoint = new Point((int)m.LParam & 0xFFFF, (int)m.LParam >> 16 & 0xFFFF);
                        vPoint = PointToClient(vPoint);
                        if (vPoint.X <= 5)
                        {
                            if (vPoint.Y <= 5)
                            {
                                m.Result = (IntPtr)HTTOPLEFT;
                            }
                            else
                            if (vPoint.Y >= ClientSize.Height - 5)
                            {
                                m.Result = (IntPtr)HTBOTTOMLEFT;
                            }
                            else
                            {
                                m.Result = (IntPtr)HTLEFT;
                            }
                        }
                        else
                        if (vPoint.X >= ClientSize.Width - 5)
                        {
                            if (vPoint.Y <= 5)
                            {
                                m.Result = (IntPtr)HTTOPRIGHT;
                            }
                            else
                            if (vPoint.Y >= ClientSize.Height - 5)
                            {
                                m.Result = (IntPtr)HTBOTTOMRIGHT;
                            }
                            else
                            {
                                m.Result = (IntPtr)HTRIGHT;
                            }
                        }
                        else
                        if (vPoint.Y <= 5)
                        {
                            m.Result = (IntPtr)HTTOP;
                        }
                        else
                        {
                            if (vPoint.Y >= ClientSize.Height - 5)
                            {
                                m.Result = (IntPtr)HTBOTTOM;
                            }
                        }
  
                    }
                    break;
  
                default:
                    break;
            }
        }
  
        private void InitializeComponent()
        {
            this.SuspendLayout();
            this.ClientSize = new Size(284, 261);
            this.DoubleBuffered = true;
            this.Name = "conextForm";
            this.ResumeLayout(false);
  
        }
    }
}

[软泡芙]

体验好的窗体都要代码去自定义的吧，要是不想写太多代码就调别人的窗体库。

[shijies]

在VS 2017中没有看到供设计窗体使用的组件，生成一个最基本的窗体也需要写代码？

[datafansbj]

引用 3 楼 shijies 的回复:

在VS 2017中没有看到供设计窗体使用的组件，生成一个最基本的窗体也需要写代码？

你是不是 VS2017 安装的不全？必须选择“Windows 桌面开发”这一项才有窗体设计器。

[DONGF331]

创建一个winform窗体