#include "highgui.h"

int main( int argc, char** argv )

{
IplImage* img = cvLoadImage( argv[1] );
img=cvLoadImage("bmw.BMP");
cvNamedWindow( "bmw.BMP", CV_WINDOW_AUTOSIZE );
cvShowImage( "bmw.BMP", img );
cvWaitKey(0);
cvReleaseImage( &img );
cvDestroyWindow( "bmw.BMP" );
}

kompiliere, bekomme ich diese fehlermeldung und habe keine ahnung wo das problem liegt:Compiler: OpenCV
Executing g++.exe...
g++.exe "C:\OpenCV\opentest1.cpp" -o "C:\OpenCV\opentest1.exe" -L"C:\OpenCV\lib" -lcxcore200. -lcv200. -lcvaux200. -lhighgui200. -lml200. -lcxts200. -I"C:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include" -I"C:\Dev-Cpp\include\c++\3.4.2\backward" -I"C:\Dev-Cpp\include\c++\3.4.2\mingw32" -I"C:\Dev-Cpp\include\c++\3.4.2" -I"C:\Dev-Cpp\include" -I"C:\OpenCV\include\opencv" -I"C:\OpenCV\src\cv" -I"C:\OpenCV\src\cvaux" -I"C:\OpenCV\src\cxcore" -I"C:\OpenCV\src\highgui" -I"C:\OpenCV\ml" -L"C:\Dev-Cpp\lib" -L"C:\OpenCV\lib"
In file included from C:/OpenCV/include/opencv/cxcore.hpp:2243,
from C:/OpenCV/include/opencv/cxcore.h:2123, from C:/OpenCV/include/opencv/highgui.h:47,
from C:\OpenCV\opentest1.cpp:3:C:/OpenCV/include/opencv/cxoperations.hpp: In member function void cv::Ptr<_Tp>::addref()': C:/OpenCV/include/opencv/cxoperations.hpp:1442: error: there are no arguments to__exchange_and_add' that depend on a template parameter, so a declaration of \_\_exchange\_and\_add' must be available C:/OpenCV/include/opencv/cxoperations.hpp:1442: error: (if you use-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
C:/OpenCV/include/opencv/cxoperations.hpp: In member function void cv::Ptr<_Tp>::release()': C:/OpenCV/include/opencv/cxoperations.hpp:1446: error: there are no arguments to__exchange_and_add' that depend on a template parameter, so a declaration of \_\_exchange\_and\_add' must be available C:/OpenCV/include/opencv/cxoperations.hpp: In member functioncv::Ptr<_Tp>& cv::Ptr<_Tp>::operator=(const cv::Ptr<_Tp>&)':
C:/OpenCV/include/opencv/cxoperations.hpp:1473: error: there are no arguments to \_\_exchange\_and\_add' that depend on a template parameter, so a declaration of__exchange_and_add' must be availableIn file included from C:/OpenCV/include/opencv/cxcore.hpp:2244,
from C:/OpenCV/include/opencv/cxcore.h:2123, from C:/OpenCV/include/opencv/highgui.h:47,
from C:\OpenCV\opentest1.cpp:3:C:/OpenCV/include/opencv/cxmat.hpp: In copy constructor cv::Mat::Mat(const cv::Mat&)': C:/OpenCV/include/opencv/cxmat.hpp:102: error:__exchange_and_add' undeclared (first use this function)
C:/OpenCV/include/opencv/cxmat.hpp:102: error: (Each undeclared identifier is reported only once for each function it appears in.)
C:/OpenCV/include/opencv/cxmat.hpp: In constructor cv::Mat::Mat(const cv::Mat&, const cv::Range&, const cv::Range&)': C:/OpenCV/include/opencv/cxmat.hpp:174: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In constructor cv::Mat::Mat(const cv::Mat&, const cv::Rect&)': C:/OpenCV/include/opencv/cxmat.hpp:189: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In member function cv::Mat& cv::Mat::operator=(const cv::Mat&)': C:/OpenCV/include/opencv/cxmat.hpp:239: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In member function void cv::Mat::addref()': C:/OpenCV/include/opencv/cxmat.hpp:342: error:__exchange_and_add' undeclared (first use this function)
C:/OpenCV/include/opencv/cxmat.hpp: In member function void cv::Mat::release()': C:/OpenCV/include/opencv/cxmat.hpp:346: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In copy constructor cv::MatND::MatND(const cv::MatND&)': C:/OpenCV/include/opencv/cxmat.hpp:3648: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In member function cv::MatND& cv::MatND::operator=(const cv::MatND&)': C:/OpenCV/include/opencv/cxmat.hpp:3677: error:__exchange_and_add' undeclared (first use this function)
C:/OpenCV/include/opencv/cxmat.hpp: In member function void cv::MatND::addref()': C:/OpenCV/include/opencv/cxmat.hpp:3717: error:__exchange_and_add' undeclared (first use this function)
C:/OpenCV/include/opencv/cxmat.hpp: In member function void cv::MatND::release()': C:/OpenCV/include/opencv/cxmat.hpp:3722: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In member function cv::SparseMat& cv::SparseMat::operator=(const cv::SparseMat&)': C:/OpenCV/include/opencv/cxmat.hpp:4081: error:__exchange_and_add' undeclared (first use this function)C:/OpenCV/include/opencv/cxmat.hpp: In member function void cv::SparseMat::addref()': C:/OpenCV/include/opencv/cxmat.hpp:4112: error:__exchange_and_add' undeclared (first use this function)
C:/OpenCV/include/opencv/cxmat.hpp: In member function void cv::SparseMat::release()': C:/OpenCV/include/opencv/cxmat.hpp:4116: error:__exchange_and_add' undeclared (first use this function)Execution terminated

WO IST DER FEHLER ????
dann würde ich gerne wissen, ob ich nicht besser mit visual c++ anstatt dev c++ arbeiten solte?
vielen dank für eure antworten

chill out

Building on Windows using MinGW 3.4.5

If you get compile errors to do with __exchange_and_add it is due to the wrong definition of CV_XADD. It can be fixed by:
1. Open cxoperations.hpp (found in <Open CV base dir>\include\opencv)
2. Find this section (lines 67-68 in 2.0):

#else
#include <bits/atomicity.h>
#if __GNUC__ >= 4

3. And update it to reference a new definition, __MINGW32__ (defined by the MinGW compiler, see http://predef.sourceforge.net/precomp.html#sec31):

#else
#include <bits/atomicity.h>
#if __GNUC__ >= 4 || __MINGW32__

Hoffe das löst dein Problem
Grüße
Michael

Nimm Visual C++ 2008 Express SP1 :xmas1:

Die Beta 2 der kommenden 2010er Edition ist auch ziemlich stabil.
Das bessere IntelliSense macht wirklich einiges aus (den Rest hab ich nicht bemerkt^^)