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Tutorial test fails. W7 problem?

asked 2018-05-10 11:20:57 -0600

Vicente
11 ●1 ●3

Tutorial test fails. W7 problem?

Hello

I am trying to set up opencv following the tutorial and I get an error. Well, I get more errors, but I cannot solve this.

I have installed on my computer:

windows 7 pro 64 bits sp1
Visual Studio 2017 community 15.6.7
ipp 2018.2.185

Following the installation tutorial I have chosen "Installation by Using git-bash (version>=2.14.1) and cmake (version >=3.9.1)"

I think that I have got ocv 4.0.0

I have built the library, setup vs2017 and try to test it with the sample code that comes with the tutorial.

https://docs.opencv.org/master/dd/d6e...

I have built the sample program, but I get a runtime error:

No se encuentra el punto de entrada del procedimiento MFCreateDXGIDeviceManager en la biblioteca de vínculos dinámicos MFPlat.DLL

Something like:

MFCreateDXGIDeviceManager procedure entry point not found in MFPlat.DLL

I get this error before executing my first line of code and after drawing the console window.

If I comment every line related to cv:: (Mat, imread, namedWindow, imshow and waitKey) I get no error.

I have found in the internet that MFCreateDXGIDeviceManager is for w8 and higher and I am using w7, so I think that this could be the problem, I need libs for w7 but I don´t know how to set up to use them.

I have looked for MFCreateDXGIDeviceManager, MFPlat.DLL, windows 7 and w7 in the q&a but have found no entries for the first 2, and a few non related entries for the last 2.

Can anyone please help me?

Thanks in advance.

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Comments

you seem to have an MFC related problem, not an opencv one.

berak ( 2018-05-10 12:05:32 -0600 )edit

I think too it is not an opencv problem try to modify your projects cmakelists.txt

LBerger ( 2018-05-10 12:45:01 -0600 )edit

berak, LBerger, thank you for your comments.

I have made a new MFC application and it works.

If I add the ocv includes it still run.

#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>
using namespace cv;

If I add

Mat imagen;

I get the same runtime error

If I comment

//Mat imagen;

I still get the runtime error, although is the same situation that previous step.

If I comment the ocv includes it run again with no errors.

The error is related to MFC, but only when use ocv libs.

I have search in c:/lib for CMakeLists.txt and I have found 155 files, no one with CMAKE_MFC_FLAG

I suppose that I need to add to C:\lib\opencv\ CMakeLists.txt isn´t it?

Vicente ( 2018-05-10 14:13:03 -0600 )edit

Do you use cmake to build your own project ? if yes modify your own cmakelists.txt.

Rebuild opencv with options -DWITH_MSMF:BOOL=OFF

LBerger ( 2018-05-10 15:17:55 -0600 )edit

DON'T make an MFC application, simply. opencv does not need that, at all.

berak ( 2018-05-11 01:04:33 -0600 )edit

1

http://pklab.net/?id=390&lang=EN

LBerger ( 2018-05-11 03:04:51 -0600 )edit

1

@LBerger , sure it can be done. it's not nessecarily a good idea, though.

berak ( 2018-05-11 03:08:19 -0600 )edit

I use VS2017 to build my project.

The original post was related to a non MFC project.

I have tried with a console project, with an empty project and, after reading your comments, with an MFC project. I get the same error in all three cases

Vicente ( 2018-05-11 04:29:43 -0600 )edit

1

Have you try : Rebuild opencv with options -DWITH_MSMF:BOOL=OFF

LBerger ( 2018-05-11 05:09:43 -0600 )edit

@LBerger , so, the MSMF VideoCapture / Writer depends on MFC ?

berak ( 2018-05-11 05:33:42 -0600 )edit

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answered 2018-05-11 07:19:03 -0600

Vicente
11 ●1 ●3

New users must wait 2 days to answer own questions, so I will post as a comment.

I have deleted c:\lib and extract there the 3.4.1 prebuilt libs, re-setup path and visual studio props as the tutorial says and ... voila! the initial test program from the tutorial is running with no errors.

Berak, LBerger, thank you a lot for your help.

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you can answer to your own question now

LBerger ( 2018-05-11 07:38:53 -0600 )edit

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Asked: 2018-05-10 11:20:57 -0600

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Last updated: May 10 '18

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