[itistoday]

k, im learning cocoa, and i have two questions:
the first is simple, can i just use void all the time instead of IBAction?

like instead of:

- (IBAction)generate id)sender

i'll put

- (void)generate id)sender

can i use void all the time?

also, what is the (id)sender part? what does it mean? does it have to be "sender", or can i put anything?

sorry for my newbieness

edit: the unhappy faces are there because i put ":" and "(" together, so where you see unhappy faces it's just a colon and an opening parentheses

[ 01-16-2002: Message edited by: itistoday ]

[mr_sonicblue]

Sender is just used to tell a function who called the function (what object). Just pass "self" along for a function call:

[mainInterface generate:self];

You could call the variable something else, but there's no point (It wouldn't change anything).

[Angus_D]

Originally posted by itistoday:
<STRONG>k, im learning cocoa, and i have two questions:
the first is simple, can i just use void all the time instead of IBAction?</STRONG>

Yes. From NSNibDeclarations.h:

<BLOCKQUOTE><font size="1"face="Geneva, Verdana, Arial">code:</font><HR><pre><font size=1 face=courier>#ifndef IBAction
#define IBAction void
#endif</font>[/code]

So IBAction _IS_ void.

[wadesworld]

But why would you want to define IBAction as void?

Wade

[seb2]

Originally posted by wadesworld:
<STRONG>But why would you want to define IBAction as void?
</STRONG>

well, you somehow got to give ib a clue which methods to display in "connections" and which not.
whenever a project grows and you figure that you need additional gui elements, just drag your .h into ib and it'll show your new ibactions so you can connect them. it would be horrible if all your methods appeared in there, that would be a real mess.

[ 01-20-2002: Message edited by: seb2 ]