This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
What is this base class use for? I can't understand the meaning. Please give me some clue, thank you!
Joined: Nov 23, 2006
Use the following two files from the above class, we can draw line on the white canvas. Why? I try to read these 2 files, but seems difficult for me to understand. Anybody give me some description. I will appreciate that very much!!!