Gtk-WARNING **: 23:30:56.598: cannot open display:

C++
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1

hi all
i am trying to write my first opencv in windwos 10 , i’m using cygwin, my code llike below

int main( int argc, char** argv ) {
Mat img = imread( argv[1], 0 );

if( img.empty() ) return -1;

namedWindow( “E2”, cv::WINDOW_AUTOSIZE );

imshow( “E2”, img );

waitKey( 0 );

destroyWindow( “E2” );
}

compile method: compile will be success
g++ example_02-02.cpp -o example_02-02.exe -lopencv_core -lopencv_imgcodecs -lopencv_highgui

so after all when i’m trying to run the program, it couldn’t run and give this error:

Gtk-WARNING **: 23:30:56.598: cannot open display:

i need help to run away from this error

2

if you install xclock or xcalc or xeyes, and run any of those, does that work?

3

thanks for your answer

unfortunately , No neither of them are working

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4

ok cool, so we’ve established it’s not an OpenCV issue but an issue of your environment.

you can continue to debug this by using those applets instead of OpenCV.

5

those applets ?
i dont understand, your mean.