First, you should install XCode (either from your System Installation
DVD or by downloading it from connect.apple.com - you'd need to
register as a developer then).
When installed, you should get familiar with XCode, copy one of the
example-projects to your desktop from /Developer/Examples (on your
startup disk), open the project by double-clicking the .xcodeproj file.
Click the "Build and Go" button, and try the program.
Here's a few suggestions for examples to try first - they are both
quite small:
/Developer/Examples/AppKit/DotView
/Developer/Examples/AppKit/CircleView
When you've loaded the DotView and tried it, try changing some values,
for instance change:
dotRect.size.width = 2 * radius;
to...
dotRect.size.width = 0.7 * radius;
Click "Build and Go" again, and see the difference from last time.
Try also changing bezierPathWithOvalInRect to bezierPathWithRect,
Build and Go, to see what happes.
Explore and learn. At some point, you will get compile-errors, and the
program will not run. You will learn later, how to deal with compile-
errors; fortunately, XCode helps you to see what's wrong, usually by
showing you the line that fails to compile.
When you've at some point get tired or ruined the application (don't
worry, you still have the original), go and take this tutorial:
http://developer.apple.com/documentation/Cocoa/Conceptual/ObjCTutorial/01Introduction/chapter_1_section_1.html
Note: If something worked, but won't compile anymore, and you don't
remember how it looked like, you can try and press Command+Z to undo
your changes. Save the file and try building it again.
Love,
Jens
On Jan 9, 2009, at 03:11, Parker Logan wrote:
I am new to all this so if any one can help please do.
Thank you
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