Difficulty using cvDisplayOverlay [closed]
My code works perfectly fine. But just when I add the below line:
cvDisplayOverlay("Camera", "Hey", 4000);
I get this error: unresolved external symbol extern C void __cdecl
I am unable to understand how can I remove the error?
Thanks
I have included the appropriate header file highgui_c.h
won't work without qt
so in more detail to berak his remark, you need to get the sourcecode of opencv, rebuilt it completely with Qt support and then your function will work perfectly.
Thanks for your reply, berak and StevenPuttemans