using xcode with the FB API to post on peoples walls - iphone

Question

I am using the FB API and intergrating FB so that i caqn post on the users walls when they accept it,
i have this code sao far from the fb site its working all ok but the users are allowed to enter there own message on the post box.
- (void)fbDidLogin {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[facebook accessToken] forKey:#"FBAccessTokenKey"];
[defaults setObject:[facebook expirationDate] forKey:#"FBExpirationDateKey"];
[defaults synchronize];
NSArray *permissions = [[NSArray alloc] initWithObjects:
#"user_likes",
#"read_stream",
nil];
[facebook authorize:permissions];
[permissions release];
[facebook dialog:#"feed" andDelegate:self];
}
I was wondering if i could have a preset message to appear in the box somthing like the code below.
[NSString stringWithFormat:#" My New High Score i%",highscore]
and locked so that they can not edit it.

Answer 1

I found out by using this it posts everything i need and allows the user to add there comment plus they cant edit there high score which is what i was looking for.
- (void)postwall
{
NSString *string = #"I reached a score of ";
string = [string stringByAppendingString:[NSString stringWithFormat:#"%d", highscore]];
string = [string stringByAppendingString:#" can you beat me?"];
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
//kAppId, #"app_id",
#"https://developers.facebook.com/docs/reference/dialogs/", #"link",
#"http://fbrell.com/f8.jpg", #"picture",
#"Watch Ma Balls", #"name",
#"How long can you keep out of the way of ma balls for", #"caption",
string, #"description",
nil];
[facebook dialog:#"feed" andParams:params andDelegate:self];
}