EyemSamples.cs
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using Microsoft.Win32.SafeHandles;
using System;
using System.Runtime.InteropServices;
namespace eyemLib_Sharp
{
public unsafe class EyemSamples
{
#region 通用
// Win32 memory copy function
[DllImport("ntdll.dll", CallingConvention = CallingConvention.Cdecl)]
private static extern byte* memcpy(byte* dst, byte* src, int count);
//读取图像
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemImageRead(string filename, int iFalgs, out EyemImage ucpImage);
//保存图像
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemImageWrite(string filename, EyemImage ipImage);
//释放图像资源
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern void eyemImageFree(IntPtr ipImage);
#endregion
//读码程序
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern int eyemDetectAndDecode(EyemImage tpImage, EyemRect tpRoi, string fileName, string strCodeType, out DataCodeHandle hObject, out EyemBarCode* tpResults, out int ipNum, bool bUseNiBlack, int iBlockSize, int iRangeC, int iSymbolMin, int iSymbolMax, double dToleErr = 0.5, double dMinorStep = 1.0);
//释放工具
[DllImport("eyemLib.dll", CharSet = CharSet.None, CallingConvention = CallingConvention.Cdecl)]
private static extern bool eyemDetectAndDecodeFree(IntPtr hObject);
public static void eyemReadImageTool(string fileName)
{
EyemImage ucpImage;
int flag = eyemImageRead(fileName, -1, out ucpImage);
if (flag != 0)
{
Console.WriteLine("读图失败！");
return;
}
EyemRect tpRoi = new EyemRect();
tpRoi.iXs = tpRoi.iYs = 0;
tpRoi.iWidth = ucpImage.iWidth;
tpRoi.iHeight = ucpImage.iHeight;
string file = fileName.Split(new string[] { "\\" }, StringSplitOptions.RemoveEmptyEntries)[2];
int ipNum; EyemBarCode* tpResults;
DataCodeHandle hObject;
eyemDetectAndDecode(ucpImage, tpRoi, file.Replace(".png", ""), "QRCode", out hObject, out tpResults, out ipNum, false, 11, 5, 128, 215);
for (int i = 0; i < ipNum; i++)
{
Console.WriteLine("类型：" + Marshal.PtrToStringAnsi(tpResults[i].hType) + "；坐标" + "[" + tpResults[i].iCenterX.ToString() + "," + tpResults[i].iCenterY.ToString() + "]" + "；内容：" + Marshal.PtrToStringAnsi(tpResults[i].hText) + "");
}
//释放
hObject.Dispose();
//释放图像
eyemImageFree(ucpImage.ucpImage);
}
//释放解码句柄
public class DataCodeHandle : SafeHandleZeroOrMinusOneIsInvalid
{
public DataCodeHandle() : base(true) { }
protected override bool ReleaseHandle()
{
return eyemDetectAndDecodeFree(handle);
}
}
}
}