How to make this kind of connection in Qsys？

[Altera_Forum]

I saw some designs with Qsys ，there are some components‘ connection just look like the below picture(i mean the pin "in" in the red circle, there is a strange symble connect it ),how to make this? can anybody tell me?:confused: 

   ---------------------------------------------- https://lh4.googleusercontent.com/-13ss7m-i9BY/T03hX3pzAOI/AAAAAAAAAAg/w5KfEKdJsKk/s570/qsys.png        SORRY ABOUT THE PICTURE, i don't know how to show it. (thanks DAIXIWEN to tell me )   if can't see it? here is a link.    https://picasaweb.google.com/lh/photo/86iuminq8a_dyhyan-kfo9mtjnzetymypjy0liipfm0?feat=directlink

[Altera_Forum]

we don't see your picture, we see what looks like an error message instead. please try to attach the image to your post instead

[Altera_Forum]

thanks for telling me the picture mistake, it is my first time inserting a picture , so ..., now i have edit again .:)

[Altera_Forum]

This icon means that this interface is exported, i.e. is connected to ports outside of the Qsys component. You can do that with any interface by clicking on "click to export" in the export column.

[Altera_Forum]

it works, haha...it seems i asked a very stupid question . 

Thanks for answering me.

[Altera_Forum]

There aren't stupid questions ;) It's better to ask than to stay stuck on a problem like that for days