C#编程调用Cards.dll实现图形化发牌功能示例

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;using System.Windows.Forms.Design;namespace GetCards{  public partial class Form1 : Form   {     [DllImport("cards.dll")]    public static extern bool cdtInit(ref int width, ref int height);     [DllImport("cards.dll")]    public static extern void cdtTerm();     [DllImport("cards.dll")]    public static extern bool cdtDraw(IntPtr hdc,int x,int y,int card,int mode,long color);    //mode=0表正面,1表反面,Color我从0-0xFF000试了很多,好象没颜色改变    //[DllImport("cards.dll")]    //public static extern bool cdtDrawExt(IntPtr hdc,int x,int y,int dx,int dy,int card,int type,long color);    //[DllImport("cards.dll")]    //public static extern bool cdtAnimate(IntPtr hdc,int cardback,int x,int y,int frame);    int[] bb = new int[100];    public Form1()     {       InitializeComponent();     }    private void Form1_Load(object sender, EventArgs e)     {      int width, height;       width = 0; height = 0;       cdtInit(ref width, ref height);     }    private void btn_PaintCard_Click(object sender, EventArgs e)     {      int i, k, left_x, top_y, CardId;      for (k = 0; k <= 3; k++)       {        for (i = 1; i <= 13; i++)         {           left_x = 20 + (i - 1) * 15;        //牌的重叠后的宽度是15           top_y = 20 + k * 100;           //每行13张牌.高度是20           CardId = (i - 1) * 4 + k;         //原来52张牌是编了号的           cdtDraw(this.CreateGraphics().GetHdc(), left_x, top_y, CardId, 0,9);         }       }     }    private void Form1_FormClosed(object sender, FormClosedEventArgs e)     {       cdtTerm();     }    private void btn_PaintBack_Click(object sender, EventArgs e)     {      int i, left_x, top_y, BackId;      for (i = 0; i <= 11; i++)              //12张牌背面图       {         BackId = i;         top_y = 20 + (i & 3) * 100;           //小于等于3的不变,>3的截尾,相当于竖排         left_x = 20 + (i >> 2) * 80 + 180 + 80;     //左边牌占15*12+80=260,也就是和最右张牌20(隐含了牌大小=80)         cdtDraw(this.CreateGraphics().GetHdc(), left_x, top_y, 54 + BackId, 1, 9);       }     }    private void btn_Random1_Click(object sender, EventArgs e) //第一种方法实现随机交换牌     {      int ii, k, left_x, top_y, CardId;      int[] theArray = new int[52];       Random r = new Random();       listBox1.Items.Clear();      for (int i = 0; i < 52; i++)       {         theArray[i] = i + 1;       }      for (int i = 0; i < 52; i++) //就是做52次随机交换两张牌       {        int a = r.Next(52); //生成0--->51的随机数        int b = r.Next(52);        int tmp = theArray[a];         theArray[a] = theArray[b];         theArray[b] = tmp;       }      for (int i = 0; i < 52; i++)       {         listBox1.Items.Add(theArray[i]);         k = (int)(i / 13);         ii = i % 13 + 1;         left_x = 20 + (ii - 1) * 15;         top_y = 20 + k * 100;         CardId = theArray[i] - 1;         cdtDraw(this.CreateGraphics().GetHdc(), left_x, top_y, CardId, 0, 9);       }     }    private void btn_Random2_Click(object sender, EventArgs e) //第一种方法实现随机交换牌     {      int ii, k, left_x, top_y, CardId;      int[] theArray = new int[52];      int i = 0;      while (i < theArray.Length)       {         theArray[i] = ++i;       }       Random r = new Random();       listBox1.Items.Clear();      while (i > 1) //从51-->1依次随机向前交换获得最终值       {        int j = r.Next(i);        int t = theArray[--i];         theArray[i] = theArray[j];         theArray[j] = t;       }      for (i = 0; i < theArray.Length; ++i)       {         listBox1.Items.Add(theArray[i].ToString());         k = (int)(i / 13);         ii = i % 13 + 1;         left_x = 20 + (ii - 1) * 15;         top_y = 20 + k * 100;         CardId = theArray[i] - 1;         cdtDraw(this.CreateGraphics().GetHdc(), left_x, top_y, CardId, 0, 9);       }     }   }}