请教高手高手高高手下列vc++代码用c#如何编写

Question

楼主只要说：要实现什么功能，什么效果，自然就可以用C#写代码出来
你把VC全摆上去，我也看不懂呀

Answer 1

不算很难，c#调用Windows API就行

Answer 2

很简单的。那个vc++就是没用MFC框架，自己写的窗口而已,消息循环,消息处理,这是VC++ win32程序的入门。
用C# 用winform很简单就实现了,拖个窗体,画写字符，改变颜色就行了

Answer 3

你是要做一个按键随机改变颜色的Hello World？
创建个Windows应用程序，在窗体上放一个Label，再响应窗体的KeyPress事件，加入如下代码：
private Random r = new Random();private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
    label1.ForeColor = Color.FromArgb(r.Next(0x1000000));
}

Answer 4

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace _90998
{
    public partial class Form1 : Form
    {        private Color ctemp;
        public Color cTemp{get{return ctemp;} set{ctemp = value;}}        public Form1()
        {
            InitializeComponent();
            CenterToScreen();            Paint+= new PaintEventHandler(OnPaint);
            AutoSizeChanged += new EventHandler(OnAutoSizeChanged);
            KeyDown += new KeyEventHandler(OnKeyDown);
        }
        public void OnPaint(object sender, PaintEventArgs e)
        {
            Color c = new Color();            c = RandomColor();            
           
           
            ChangeTextColor(c,e);        }
        public void OnKeyDown(object sender, KeyEventArgs e)
        {
            Redraw();
        }        public void ChangeTextColor(Color c, PaintEventArgs e)
        {
            GraphicsPath p = new GraphicsPath();
           
            RECT rt = new RECT();
            //rt.top = ClientSize.Height;
            //rt.left = ClientSize.Width;
           
            p.AddString("Hello, You Are Welcome!", FontFamily.GenericSansSerif, (int)FontStyle.Italic, (float)72, new Point(0,0), StringFormat.GenericDefault);
            if(!GetClientRect(base.Handle, ref rt))
                throw new Exception("调用失败");            bool bDt = DrawText(GetWindowDC(base.Handle), "Hello, You Are Welcome!", -1, ref rt, 0x00000020 | 0x00000001 | 0x00000004);//DT_SINGLELINE | DT_CENTER | DT_VCENTER);
            if (!bDt)
                throw new Exception("调用失败");            
            SolidBrush brush = new SolidBrush(c);
            cTemp = c;
            e.Graphics.FillPath(brush, p);
            brush.Dispose();        }
         public void OnAutoSizeChanged(object sender, EventArgs e)
        {
           Redraw(cTemp);
        }        public void Redraw()
        {
            Color c = new Color();
            Graphics g = Graphics.FromHwnd(base.Handle);
            Rectangle rc = new Rectangle();
            PaintEventArgs ep = new PaintEventArgs(g, rc);
            c = RandomColor();
            
            Color c1 = Color.FromArgb(255,255,255);
            g.Clear(c1);
            ChangeTextColor(c, ep);           BackColor = RandomColor(50);
        
        }        public void Redraw(Color c)
        {            Graphics g = Graphics.FromHwnd(base.Handle);
            Rectangle rc = new Rectangle();
            PaintEventArgs ep = new PaintEventArgs(g, rc);
            ChangeTextColor(c, ep);        }
        public Color RandomColor()
        {
            Random rd =new Random();
            int r = rd.Next(255);
            int g = rd.Next(255);
            int b = rd.Next(255);
            
            Color c = new Color();
            c=Color.FromArgb(r,g,b);
        //资料来源http://study.qqcf.com/web/715/214956.htm
            return c;
        }        public Color RandomColor(int ir)
        {
            Random rd = new Random();
            int r = rd.Next(ir);
            int g = rd.Next(ir);
            int b = rd.Next(ir);            Color c = new Color();
            c = Color.FromArgb(r, g, b);
            //资料来源http://study.qqcf.com/web/715/214956.htm
            return c;
        }
        [DllImport("User32.dll", EntryPoint = "DrawText")]
        private static extern bool DrawText(IntPtr hDC,string lpString,int nCount,ref RECT rt,uint uFormat);
        [DllImport("User32.dll", EntryPoint = "GetWindowDC")]
        private static extern IntPtr GetWindowDC(IntPtr hWnd);
        [DllImport("User32.dll", EntryPoint = "GetClientRect")]
        private static extern bool GetClientRect(IntPtr hWnd, ref RECT rt);
    }             [StructLayout(LayoutKind.Sequential)]
         public struct RECT
         {
             public long left;
             public long top;
             public long righ;
             public long bottom;
        }}
//不是很完善，不足之处请各位老师多多批评指导。谢谢。

Answer 5

楼猪编这个有什么用呀
form1 new 一个算了

Answer 6

顺便请教一下p.AddString("Hello, You Are Welcome!", FontFamily.GenericSansSerif, (int)FontStyle.Italic, (float)72, new Point(0,0), StringFormat.GenericDefault); 如何使该字符串居中显示，还没找到方法还有        public void OnAutoSizeChanged(object sender, EventArgs e) 
        { 
          Redraw(cTemp); 
        } 在这个触发事件中快速改变窗体尺寸时，字体会花，如何保证字体不花呢？