Question

#import <WebKit/WebKit.h>

@interface MyClass : NSObject <WebFrameLoadDelegate> {
WebView *webView;
}

cannot find protocol declaration for ‘WebFrameLoadDelegate’

Answer 1

WebFrameLoadDelegate is a informal protocol – it is declared as a category of NSObject. To use it you need to declare required methods in class interface and implement them.

When used to declare a protocol, a
category interface doesn’t have a
corresponding implementation. Instead,
classes that implement the protocol
declare the methods again in their own
interface files and define them along
with other methods in their
implementation files.