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Customize the Load Method

Open the file that implements the CIPlugInRegistration protocol. In it you’ll find a load method, as shown in Listing 4-1. You have the option to add code to this method to perform any initialization that’s needed, such as a registration check. The method returns true if the filter is loaded successfully. If you don’t need any custom initialization, you can leave the load method as it is.

Listing 4-1  The load method provided by the image unit template

-(BOOL)load:(void*)host

{

    // custom image unit initialization code goes here

    return YES;

}

If you want, you can write an unload method to perform any cleanup tasks that might be required by your filter.

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