Window name as unidentified identifier in simple program

asked 2015-05-17 03:46:03 -0600

I am a beginner in OpenCV and VC++. I wrote the below introductory program to display a picture :

#include "stdafx.h"
#include <highgui.h>
int main(int argc, char** argv) {
IplImage* img = cvLoadImage("C:\\flower.jpg",1);
cvNamedWindow(“Example1”, CV_WINDOW_AUTOSIZE);
cvShowImage(“Example1”, img);
cvWaitKey(0);
cvReleaseImage(&img);
cvDestroyWindow(“Example1”);
  }

In this , I'm getting the following error :

Error   1   error C2065: '“Example1”' : undeclared identifier   C:\opencv_examples\opencv_sanitytest\ex1\ex1\ex1.cpp    5   1   ex1
Error   2   error C2065: '“Example1”' : undeclared identifier   C:\opencv_examples\opencv_sanitytest\ex1\ex1\ex1.cpp    6   1   ex1
Error   3   error C2065: '“Example1”' : undeclared identifier   C:\opencv_examples\opencv_sanitytest\ex1\ex1\ex1.cpp    9   1   ex1
4   IntelliSense: identifier "“Example1”" is undefined  c:\opencv_examples\opencv_sanitytest\ex1\ex1\ex1.cpp    5   16  ex1

I think that some header files are missing perhaps. Any help would be appreciated.

answered 2015-05-17 03:49:54 -0600

berak
32993 ●7 ●81 ●312

updated 2015-05-17 03:55:45 -0600

oh, please, you must not use opencv's arcane c-api, but the c++ one:

#include <opencv2/opencv.hpp>
int main(int argc, char** argv) {

    cv::Mat img = cv::imread("C:\\flower.jpg",1);
    cv::namedWindow("Example1", cv::WINDOW_AUTOSIZE);
    cv::imshow("Example1", img);
    cv::waitKey(0);
    return 0;
 }

also, it has to be "Example1" , not “Example1”

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yea, that error is avoided. However two more errors have come :

Error   1   error LNK1112: module machine type 'X86' conflicts with target machine type 'x64'   C:\opencv_examples\opencv_sanitytest\ex1\ex1\opencv_highgui300.lib(window.obj)  ex1
    2   IntelliSense: PCH warning:  c:\opencv_examples\opencv_sanitytest\ex1\ex1\ex1.cpp    1   1   ex1

I have an x86 machine but chose x64 as the solution platform as there was no x86 option

galaxyeagle ( 2015-05-17 05:17:12 -0600 )edit

ok, when I changedall imported lib and .h files from build\x64 folder, the error 1 above is removed but

Error   2   error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source?   C:\opencv_examples\opencv_sanitytest\ex1\ex1\ex1.cpp    10  1   ex1

is now coming. If I include the stdafx.h, a huge number of other errors come. Please help

galaxyeagle ( 2015-05-17 05:29:40 -0600 )edit

if you build for x64, you need to link x64 libs, not the x86 ones.
please avoid precompiled headers and stdafx in general.

start with an empty project (not with a 'console' or 'gui' one.)

berak ( 2015-05-17 05:32:19 -0600 )edit

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