Zooming in GtkDrawingArea

I hope i get help here. I put a message several days ago, untill now i have not seen response. I feel worry because my supervisor ...
My Program:

GtkDrawingArea darea;
Finally a tree is displayed(maybe large).

My question is:

How can i zoom in or zoom out what i have drawing in an efficient way. If other way can achieve this goal. Anybody have idea? Wait for your help!!

与联机的朋友进行交流,请使用 MSN Messenger: http://messenger.microsoft.com/cn

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]