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[solved] (OSX) get/set cocoa property
Posted: Thu Sep 17, 2015 5:43 pm
by erion
Hello,
I am trying to retrieve/set various properties for classes, e.g. 'speaking' of NSSpeechSynthesizer.
As far as I know, CocoaMessage() allows methods to be called, but it does not support properties. Is there a way to do this in PB?
Erion
Re: (OSX) get/set cocoa property
Posted: Thu Sep 17, 2015 7:10 pm
by wilbert
erion wrote:I am trying to retrieve/set various properties for classes, e.g. 'speaking' of NSSpeechSynthesizer.
As far as I know, CocoaMessage() allows methods to be called, but it does not support properties. Is there a way to do this in PB?
A property is a combination of a getter and setter function or in case of readonly a getter function only.
If you look at the documentation for NSSpeechSynthesizer, it says
@property(getter=isSpeaking, readonly) BOOL speaking
So in this case the function you need is called
isSpeakingCode: Select all
SpeechSynthesizer = CocoaMessage(0, CocoaMessage(0, 0, "NSSpeechSynthesizer alloc"), "initWithVoice:$", @"com.apple.speech.synthesis.voice.Alex")
Debug CocoaMessage(0, SpeechSynthesizer, "isSpeaking")
CocoaMessage(0, SpeechSynthesizer, "startSpeakingString:$", @"Your Mac is speaking to you")
Delay(100)
Debug CocoaMessage(0, SpeechSynthesizer, "isSpeaking")
MessageRequester("", "Your Mac is speaking to you")
Re: (OSX) get/set cocoa property
Posted: Thu Sep 17, 2015 8:16 pm
by erion
Marvellous, thank you!
I wasn't expecting getter/setter exposure because of my Windows background, but this definitely makes things easier.
Now I wish we had native Cocoa type conversion, such as NSArray to PB array, etc.
Once again, huge thanks for your help!
Re: (OSX) get/set cocoa property
Posted: Fri Sep 18, 2015 5:02 am
by wilbert
erion wrote:Now I wish we had native Cocoa type conversion, such as NSArray to PB array, etc.
That would be very difficult.
To convert a PB string array for example, you would need to convert each item into a NSString also.
But when you convert an array of integer values, you would need a different approach.