How to find attribute value in debugger?

I have a button and would like to know its enabled state while stepping through code. This doesn't work in the debugger:

po self.myButton.enabled

It prints:

There is no member named enabled.

Is there another way开发者_如何转开发 to print out its state?

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gdb doesn't know dot-syntax for properties, but it will evaluate method calls. -[UIButton enabled] returns a BOOL, which is a scalar type, not an object, so you should use p with a type cast, like this:

p (BOOL)[[self myButton] enabled]

If the property you want to inspect is an object, you can use po without the type cast, like this:

po [[self myButton] font]