opencv for c gtk warning cannot open display

0
votes

I have scanned other questions with similar headers, but non worked with me. I am using cygwin on windows 7 with its opencv package using clang compiler for c, When I tried a simple program to view an image it gave me this message Gtk-WARNING **: cannot open display

I have tried setting DISPLAY = 0.0 and didn't solve it just added 0.0 Gtk-WARNING **: cannot open display :0.0

1
copencvgtkcygwin
You should post what you have tried up to this point so we can find the issue. - Caleb Kleveter
I don't know what I have to do, but I think the problem lies in cvShowImage. - I.Omar
I tried some solutions, but they were for linux not windows - I.Omar

1 Answers

2
votes

The problem was with cvNamedWindow GUI. It has to be opened from x server(x app menu), so just setup cygwin/x. I didn't open webcam, so I have changed to MinGW and cmake.