C#调用Cards.dll实现图形化发牌程序

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);
}

}

}
}
界面设计的话截图比贴Designer.cs省事多了: