导出C ++的dll到C# [英] Exporting C++ dll to c#
问题描述
使用系统;
'使用System.Collections.Generic;
'使用System.Drawing中;
'使用System.Windows.Forms的;
'使用Emgu.CV;
'使用Emgu.CV.Structure;
'使用Emgu.CV.CvEnum;
'使用System.IO;
'使用System.Diagnostics程序;
'使用System.Runtime.InteropServices;
'命名空间FaceStat
'{
'Form1类:表格
{
//公共静态外部无效AsmSearchDll(OUT INT nlmarks,OUT INT lmarks ,串imgname,字节imgdata,诠释的宽度,高度INT,INT is_color,串conf_file0,串conf_file1);
函数[DllImport(@../数据/ stasm_dll.dll)]
公共静态外部无效AsmSearchDll(
OUT INT pnlandmarks,//出来:一些标志性建筑,0若能吨得到里程碑式的
OUT INT []地标,//出来:地标,来电必须分配
[的MarshalAs(UnmanagedType.LPStr)字符串IMAGE_NAME,//在:内部错误消息中使用,如果需要的话
[的MarshalAs(UnmanagedType.LPStr)字符串IMAGE_DATA,//在:图像数据,每像素3字节,如果is_color
INT宽度,//在:图像
INT高度的宽度//:影像
INT is_color的高度,//:1,如果RGB图像,0,如果灰度
[的MarshalAs(UnmanagedType.LPStr)字符串conf_file0,//在:1配置文件名,NULL默认
[的MarshalAs(UnmanagedType.LPStr)字符串conf_file1 //在:第2配置文件名,NULL默认,为没有
);
静态无效的主要(字串[] args)
{
串IMAGE_NAME =../data/Chupul.jpg;
的IplImage IMG = cvlib.cvLoadImage(IMAGE_NAME,cvlib.CV_LOAD_IMAGE_COLOR);
如果(IMG == NULL)
{
Console.Write(错误:无法打开图像{0} \\\
,IMAGE_NAME);
的回报;
}
INT nlandmarks;
INT [] =标志性建筑新INT [500]; //为X空间,多达250个地标
AsmSearchDll的ŸCOORDS(出nlandmarks,一些重要的标志,IMAGE_NAME,img.imageData,img.width,img.height,1,NULL,NULL);
如果(nlandmarks == 0)
{
Console.Write(\\\
Error:无法找到{0} \\\
landmmarks,IMAGE_NAME);
的回报;
}
INT [] P =标志;
cvlib.cvPolyLine(IMG,P,nlandmarks,1,真实,cvlib.CV_RGB(255,0,0));
cvlib.cvShowImage(ASM榜样,IMG);
cvlib.cvWaitKey(0);
cvlib.cvDestroyWindow(ASM例如);
cvlib.cvReleaseImage(IMG);
的回报;
}
}
'}
我有< STRONG> 6个错误
-
有关'FaceStat.Form1.AsmSearchDll的最佳重载的方法匹配(OUT INT,出INT [],字符串,字符串,INT,INT,INT,字符串,字符串)'有一些无效参数
-
4的说法无法从转换'System.IntPtr 到串
-
为最佳重载方法匹配'cvlib.cvPolyLine(CvArr,CvPoint [],INT [],INT,INT,CvScalar) 有一些无效参数
-
参数2不能从转换'INT []'到'CvPoint []
-
参数3无法从'诠释'转换为'廉政[]
-
参数5:无法从布尔转换为 INT
感谢
的C ++ DLL
无效AsmSearchDll(
为int * pnlandmarks,//出来:一些地标0,如果不能获得地标
INT地标[],//出来:地标,调用者必须在分配
为const char IMAGE_NAME [],//:在内部错误消息中使用,如果需要的话
为const char IMAGE_DATA [],//在:图像数据,每像素3字节,如果is_color
const int的宽度,在// :图像
const int的高度宽度,//在:图像
const int的is_color的高度,//在:1,如果RGB图像,0,如果灰度
为const char conf_file0 [],//在:1配置文件名,NULL默认
为const char conf_file1 [] //中:第2配置文件名,NULL默认,如果没有
)
函数[DllImport(@../数据/ stasm_dll.dll)]
内部静态外部无效AsmSearchDll
(
[出]出的Int32 pnlandmarks,
〔输出]出的Int32 []地标,
[中,的MarshalAs(UnmanagedType.LPStr)]字符串IMAGE_NAME,
[中,的MarshalAs(UnmanagedType.LPStr)]字符串IMAGE_DATA,
[IN]的Int32宽度,
[IN]的Int32高度,
[IN]的Int32 is_color,
[中,的MarshalAs(UnmanagedType.LPStr)]字符串conf_file0,
[中,的MarshalAs(UnmanagedType.LPStr)]字符串conf_file1
);
的IplImage IMG = cvlib.cvLoadImage(IMAGE_NAME,cvlib.CV_LOAD_IMAGE_COLOR);
字符串为imageData = Marshal.PtrToStringAnsi(img.imageData);
AsmSearchDll(出nlandmarks,一些重要的标志,IMAGE_NAME,为imageData,img.width,img.height,1,NULL,NULL);
您没有指定cvPolyLine ...所以我不能检查参数。反正......你只是传递错误的值类型的方法。像这样简单。
'using System;
'using System.Collections.Generic;
'using System.Drawing;
'using System.Windows.Forms;
'using Emgu.CV;
'using Emgu.CV.Structure;
'using Emgu.CV.CvEnum;
'using System.IO;
'using System.Diagnostics;
'using System.Runtime.InteropServices;
'namespace FaceStat
'{
'class Form1 : Form
{
// public static extern void AsmSearchDll(out int nlmarks, out int lmarks, string imgname, byte imgdata, int width, int height, int is_color, string conf_file0, string conf_file1);
[DllImport(@"../data/stasm_dll.dll")]
public static extern void AsmSearchDll(
out int pnlandmarks, // out: number of landmarks, 0 if can't get landmark
out int[] landmarks, // out: the landmarks, caller must allocate
[MarshalAs(UnmanagedType.LPStr)]string image_name, // in: used in internal error messages, if necessary
[MarshalAs(UnmanagedType.LPStr)]string image_data, // in: image data, 3 bytes per pixel if is_color
int width, // in: the width of the image
int height, // in: the height of the image
int is_color, // in: 1 if RGB image, 0 if grayscale
[MarshalAs(UnmanagedType.LPStr)]string conf_file0, // in: 1st config filename, NULL for default
[MarshalAs(UnmanagedType.LPStr)]string conf_file1 // in: 2nd config filename, NULL for default, "" for none
);
static void Main(string[] args)
{
string image_name = "../data/Chupul.jpg";
IplImage img = cvlib.cvLoadImage(image_name, cvlib.CV_LOAD_IMAGE_COLOR);
if (img == null)
{
Console.Write("Error: Can't open the image. {0}\n", image_name);
return;
}
int nlandmarks;
int[] landmarks = new int[500]; // space for x,y coords of up to 250 landmarks
AsmSearchDll(out nlandmarks, out landmarks, image_name, img.imageData, img.width, img.height, 1, null, null);
if (nlandmarks == 0)
{
Console.Write("\nError: Cannot locate landmmarks in {0}\n", image_name);
return;
}
int[] p = landmarks;
cvlib.cvPolyLine(img, p, nlandmarks, 1, true, cvlib.CV_RGB(255,0,0));
cvlib.cvShowImage("Asm example", img);
cvlib.cvWaitKey(0);
cvlib.cvDestroyWindow("Asm example");
cvlib.cvReleaseImage(img);
return;
}
}
'}
I've got 6 errors
The best overloaded method match for 'FaceStat.Form1.AsmSearchDll(out int, out int[], string, string, int, int, int, string, string)' has some invalid arguments
argument 4 cannot convert from 'System.IntPtr' to 'string'
The best overloaded method match for 'cvlib.cvPolyLine(CvArr, CvPoint[], int[], int, int, CvScalar)' has some invalid arguments
argument 2 cannot convert from 'int[]' to 'CvPoint[]'
argument 3 cannot convert from 'int' to 'int[]'
Argument 5: cannot convert from 'bool' to 'int'
Thanks
The C++ dll
void AsmSearchDll (
int *pnlandmarks, // out: number of landmarks, 0 if can't get landmarks
int landmarks[], // out: the landmarks, caller must allocate
const char image_name[], // in: used in internal error messages, if necessary
const char image_data[], // in: image data, 3 bytes per pixel if is_color
const int width, // in: the width of the image
const int height, // in: the height of the image
const int is_color, // in: 1 if RGB image, 0 if grayscale
const char conf_file0[], // in: 1st config filename, NULL for default
const char conf_file1[] // in: 2nd config filename, NULL for default, "" if none
)
[DllImport(@"../data/stasm_dll.dll")]
internal static extern void AsmSearchDll
(
[Out] out Int32 pnlandmarks,
[Out] out Int32[] landmarks,
[In, MarshalAs(UnmanagedType.LPStr)] String image_name,
[In, MarshalAs(UnmanagedType.LPStr)] String image_data,
[In] Int32 width,
[In] Int32 height,
[In] Int32 is_color,
[In, MarshalAs(UnmanagedType.LPStr)] String conf_file0,
[In, MarshalAs(UnmanagedType.LPStr)] String conf_file1
);
IplImage img = cvlib.cvLoadImage(image_name, cvlib.CV_LOAD_IMAGE_COLOR);
String imageData = Marshal.PtrToStringAnsi(img.imageData);
AsmSearchDll(out nlandmarks, out landmarks, image_name, imageData, img.width, img.height, 1, null, null);
You didn't specified cvPolyLine... so I can't check arguments. Anyway... you are just passing wrong value types to your method. As simple as this.
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