delegate with (NSString **) argument?

[udo.killermann]

Bernd,

is it possible to define a delegate with this signature?

Code: Select all

Declare Delegate "UKTextService" - (void)callOBFromTextService:(NSPasteboard *)pboard userData:(NSString *)userData error:(NSString **)error


I found no way to express (NSString **) in an As clause.

Regards
Udo

[berndnoetscher]

Bernd,

is it possible to define a delegate with this signature?

Code: Select all

Declare Delegate "UKTextService" - (void)callOBFromTextService:(NSPasteboard *)pboard userData:(NSString *)userData error:(NSString **)error


I found no way to express (NSString **) in an As clause.

Regards
Udo

Didn't have time to test it, but as I remember it works. Just use the declare statement with NSString **, but the objb function declaration with As NSString. It will be internally used as **.

[udo.killermann]

Bernd,

this leads to the following error:

internalError.jpg (48.76 KiB) Viewed 2913 times

But the executable is bound.

Regards
Udo

[berndnoetscher]

Bernd,

this leads to the following error:

internalError.jpg

But the executable is bound.

Regards
Udo

How bad. At least the following example uses declare functions with pointers and it works.

Code: Select all

' The following event sub is automatically called when your app starts.
' Why? The global.NSObject is part of the MainMenu.nib file, which
' is automatically loaded and created during start up. After that its event sub AwakeFromNib() is executed.






Declare Function "NSString" + (id)stringWithContentsOfFile:(NSString *)path encoding:(NSStringEncoding)enc error:(NSError **)error

Declare Function "NSString" + (id) alloc
Declare Function "NSString" - (id)initWithContentsOfFile:(NSString *)path encoding:(NSStringEncoding)enc  error:(NSError **)error


Event AwakeFromNib()
  Dim enc As id = 0
  Dim err As id = Nil ' the parameter, which must be past byref (NSError **) must be a local variable, otherwise you will get a compiler error
 
  Dim s As NSString = NSString.stringWithContentsOfFile("/Users/berndnoetscher/Desktop/test.txt2", encoding:=enc, error:=err)
  ''Alert(s)
  Alert(Info(err))
 
  Dim s As NSString = NSString.alloc()
  s = s.initWithContentsOfFile("/Users/berndnoetscher/Desktop/test.txt2", encoding:=enc, error:=err)
 '' Alert(s)
  Alert(Info(err))
 
End Event


The following objb code looks like it compiles to valid objc code.

Code: Select all

Declare Delegate "UKTextService" - (void)callOBFromTextService:(id)pboard userData:(NSString *)userData error:(NSString **)error

Delegate callOBFromTextService(aTableView As id, userData As NSString, error As NSString)
  Alert("test", error)
End Delegate



[udo.killermann]

Bernd,

even the current compiler throws above error with the delegate. This happens for my original code and for your code as well.
I attach the project for you to see.

textService.zip

(79.87 KiB) Downloaded 193 times

In the error log the following is written:

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12.09.10 18:47:26   textService[4388]   Cannot find service provider for selector callOBFromTextService:userData:error: or callOBFromTextService:: for service callOBFromTextService


Kind regards
Udo

[berndnoetscher]

Udo,

will take a look the next week, I guess.
Sorry for the delay, but I am busy with Q7Basic, which needs some improvements first.

[udo.killermann]

Bernd,

take the time you need - no hurry needed.

Regards
Udo

[berndnoetscher]

Bernd,

take the time you need - no hurry needed.

Regards
Udo

Udo
there is a new keyword for pointer on arguments.

error AsRef NSString

Code: Select all

Declare Delegate "UKTextService" - (void)callOBFromTextService:(id)pboard userData:(NSString *)userData error:(NSString **)error

Delegate callOBFromTextService(aTableView As id, userData As NSString, error AsRef NSString)
  Alert("test", error)
End Delegate