Thanks Jonathan,
I downloaded the two documents and also the complete HIG guidelined pdf 
document.
Will go through it.
Thanks-a-lot and sure that will help a lot.
Lennox.

Jonathan Johnson <[EMAIL PROTECTED]> wrote: 
On Jun 8, 2006, at 6:47 AM, Lennox Jacob wrote:

> What are the guidelines for using "Shift", "Control", "Option" and  
> "Command" keys in keystroke shortcuts?

The guidelines can be found at  

OSXHIGuidelines/>.

More specifically, the "Creating Your Own Shortcuts" section is  
relevant:  

OSXHIGuidelines/XHIGUserInput/chapter_11_section_3.html#//apple_ref/ 
doc/uid/TP30000361-TPXREF54>

Shift:
"Use the Command key as the main modifier key for keyboard equivalents.  
For a command that complements another more common command, you can add  
Shift. The table below shows some recommended keyboard equivalents  
using Shift and their relation with the command they complement."

Option:
"Also use Option for a keyboard shortcut that is a convenience or  
power-user feature. For example, the Finder uses Command-Option-W for  
Close All Windows and Command-Option-M for Minimize All Windows."

Control:
"Because the Control key is already used by some of the universal  
access features as well as in Cocoa text fields where Emacs-style key  
bindings are often used, it should be used as a modifier key only when  
necessary."

And overall:
"When adding custom keyboard shortcuts, try to avoid shortcuts that add  
a modifier key (such as Option or Shift) to an existing shortcut if the  
shortcuts have an unrelated function. For example, don’t use  
Shift-Command-Z as a keyboard shortcut for a command that is unrelated  
to Undo. Using that shortcut for Redo is appropriate, but using it for  
something like Calculate or Check Mail is confusing. If you can’t find  
a unique and easy-to-use keyboard shortcut for a command, don’t use one  
at all; keep in mind that users may have difficulty pressing multiple  
modifier keys anyway."

HTH,
Jon


-- 
Jonathan Johnson
REAL Software, Inc.

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