🚀 go-pugleaf

In article <1992Nov4.182700.18323@cs.ucla.edu> esky@marathon.cs.ucla.edu writes:
>Hi,
>
>This is what I did in a desperate attempt to create an app that would run  
>(NOTE: the following worked under 2.1 buit failed under 3.0):

[Long series of items in which the key to the problem is missing.


>	a) Added method - appDidInit:sender to "MyApplication.h"

[appDidInit: is never called.]

appDidInit: should be implemented as a delegate method, but can also be 
implemeneted as a subclassed method.

The reason it is never being called is because NXApp is an application
object and not a MyApplication object.   Look at the project_main.m file
and you will see what I mean.

Don't edit the main.m file though, change it in ProjectBuilder (attributes
pane)


>
>Please help me figure out this problem and why I did not have the same 
>problems under 2.1 (e-mail preferred).
>

You didn't have the problem previosuly, because the main.m file used to be
maintained by IB.

In article <1992Nov4.182700.18323@cs.ucla.edu> esky@marathon.cs.ucla.edu  
(Eskandar Ensafi) writes:
> Hi,
> 
> I converted some of my 2.1 apps to 3.0 and everything recompiled without  
> problems.  However, when I tried to create a new app under 3.0, it  
didn't work!   
> This is what I did in a desperate attempt to create an app that would  
run  
> (NOTE: the following worked under 2.1 buit failed under 3.0):
> 
> 1) In IB, I made a new application and added a TextField to the window.
> 2) I made the app a sublass of Application (MyApplication).
> 3) I created an outlet called myText in MyApplication.
> 4) I connected myText to the TextField in my window.
> 5) I unparsed the .[hm] files and used Edit to modify them as follows:
> 
> 	a) Added method - appDidInit:sender to "MyApplication.h"
> 	b) I added #import <appkit/TextField.h> to "MyApplication.m" and  
also
> 	   wrote the following code for the above method:
> 
> 		- appDidInit:sender /* I also tried appDidInit:app */
> 		  {
> 			[myText setStringValue:"This is a test."];
> 			/* I tried this code with and without [myText  
display] */
> 			return self;
> 		  }
> 
> 6) I used PB to make this into a project and compiled it.
> 7) I discovered that 3.0 breaks all connections when you make a  
subclass, so I  
> had to reconnect "Quit" and "Hide" to - terminate: and - hide:  
(obviously,  
> nither button worked when my app was compiled).
> 8) My text field did NOT display "This is a test." -- the appDidInit  
method is  
> not invoked for some reason.
> 
> Please help me figure out this problem and why I did not have the same  
problems  
> under 2.1 (e-mail preferred).
> 
> Thank You!
> 
> - Eskandar Ensafi, esky@marathon.cs.ucla.edu
> 
> 		

Click on the Objects suitcase and then when it displays all your objects  
click on the "File's Owner" object and then do Command-1 to display the  
Attributes Inspector Panel for the File's Owner and make sure that it says  
that the File's Owner is of the class MyApplication.  If it is of the  
class Application or some other class then click on MyApplication so that  
the correct class is intantiated in main().

--
+ Ricardo J. Parada
  "Imagination is more important than knowledge!"..-- Albert Einstein
  "NeXTSTEP is heaven!"............................-- Me
  "It just works!".................................-- Steven P. Jobs