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Re: Some simple questions I couldn't find answers to in the documentation
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Re: Some simple questions I couldn't find answers to in the documentation


  • Subject: Re: Some simple questions I couldn't find answers to in the documentation
  • From: Gideon King <email@hidden>
  • Date: Wed, 19 Aug 2009 14:56:09 +1000

1. When I select an object or method etc in the editor, there is often a little "i" appears to the left of the selection. If I'm very careful, I can get my mouse to it without it disappearing and I click on it, but nothing seems to happen. What is it there for?

It's there when you're debugging -- it means that if you hover over the symbol, a tool-tip-like thing will appear which allows you to inspect the value of the symbol.

Hmmm, I don't see that at all. When I hover over a variable, it shows the yellowish tooltip thing with the expand button. But hovering over the blue i does nothing.



2. Also when I mouse over a method, a little down arrow appears to the left of the statement, but if I try to move the mouse to it, it disappears as soon as I move off the method call. It sort of looks like the Step Into icon. How do I use that?

It's a sort of contextual menu, like the data detectors in mail that tell you a name or date has been recognized. If you move the mouse over the arrow *without* moving out of the dotted outline, you can click to get a menu. However, it's incredibly irritating to prevent the mouse from wandering outside the outline, so it's actually easier to right-click -- you get a much longer context menu, but at least you get it.



I don't see this either - as soon as I move from the method call part of the statement towards the left, it just disappears.


So for instance if I had:

[myVar isEqualToString:@"Fred"]

Then when I mouse over myVar, I get the tooltip variable inspector. When I mouse over the isEqualToString: I get the grayish blue down arrow icon at the left of the whole statement, but it disappears as soon as I move the mouse over myVar. And when I select any or all of the text, I get the blue icon to the left while my mouse is over the highlighted portion.

Hope this explains it better...
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  • Follow-Ups:
    • Re: Some simple questions I couldn't find answers to in the documentation
      • From: Quincey Morris <email@hidden>
References: 
 >Some simple questions I couldn't find answers to in the documentation (From: Gideon King <email@hidden>)
 >Re: Some simple questions I couldn't find answers to in the documentation (From: Quincey Morris <email@hidden>)

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