Get the localized name of a display, given the displ

gistfile1.m

/* Get the localized name of a display, given the display ID. */
-(NSString *)displayNameFromDisplayID:(CGDirectDisplayID)displayID
{
    NSString *displayProductName = nil;
    
    /* Get a CFDictionary with a key for the preferred name of the display. */
    NSDictionary *displayInfo = (NSDictionary *)IODisplayCreateInfoDictionary(CGDisplayIOServicePort(displayID), kIODisplayOnlyPreferredName);
    /* Retrieve the display product name. */
    NSDictionary *localizedNames = [displayInfo objectForKey:[NSString stringWithUTF8String:kDisplayProductName]];
    
    /* Use the first name. */
    if ([localizedNames count] > 0) 
    {
        displayProductName = [[localizedNames objectForKey:[[localizedNames allKeys] objectAtIndex:0]] retain];
    }
    
    [displayInfo release];
    return [displayProductName autorelease];
}