Custom fonts in Objective-C Application

This question isn't really asking what you might think on the surface. I already know how to use custom fonts in objective-c applications. The question is more in regards to the specifics about using custom fonts, mainly — If I use a custom font that suppose someone else may not have on their machine will it still render it properly? I haven't seen anything in pertaining to whether or not that becomes a factor if someone doesn't have the same typeface.

Also, is there any connection with my question and the object within interface builder? thanks.

Custom fonts only work if your users have them too. Otherwise, the font needs to be bundled with your program and loaded in a way similar to this one. Always make sure that you are allowed to distribute the font with your program.

-(NSFont*)fontWithName:(NSString*)name height:(CGFloat)height
{
    NSURL* fontURL = [NSBundle.mainBundle URLForResource:name withExtension:@"ttf"];
    if (fontURL == nil)
    {
        return nil;
    }

    CGDataProviderRef dataProvider = CGDataProviderCreateWithURL((CFURLRef)fontURL);
    if (dataProvider == NULL)
    {
        return nil;
    }

    CTFontRef coreTextFont = NULL;
    CGFontRef font = CGFontCreateWithDataProvider(dataProvider);
    if (font != NULL)
    {
        coreTextFont = CTFontCreateWithGraphicsFont(font, height, NULL, NULL);
    }

    CGDataProviderRelease(dataProvider);
    CGFontRelease(font);
    return CFBridgingRelease(coreTextFont);
}