Copy partial screenshot to Pasteboard - xcode

Question

So, the code to copy part of my screen to the pasteboard works because it was successfully coping it to my photo album. But, I want to be able to paste the partial screenshot into a new SMS message. I know it will have to be done manually (long hold on message and Paste), but it either pasted nothing, or does not have the Paste option (as it's saving it as a String). The middle portion of the code is the part I'm struggling with. Any help would be great. I've changed the forPasteboardType to "image" but that does not work either.
//Capture part of Screen Shot
UIGraphicsBeginImageContext(self.view.bounds.size);
CGContextRef c = UIGraphicsGetCurrentContext();
CGContextTranslateCTM(c, 0, 98); //
[self.view.layer renderInContext:c];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//Send Screenshot to Pasteboard
UIPasteboard *pasteBoard = [UIPasteboard pasteboardWithName:UIPasteboardNameGeneral create:YES];
pasteBoard.persistent = YES;
NSData *data = UIImagePNGRepresentation(viewImage);
[pasteBoard setData:data forPasteboardType:(NSString *)kUTTypePNG];
/////// Open SMS
MFMessageComposeViewController *controller = [[[MFMessageComposeViewController alloc] init] autorelease];
if([MFMessageComposeViewController canSendText])
{
controller.body = #"Hello from me, paste image here -->";
controller.recipients = [NSArray arrayWithObjects:#"123456789", nil];
controller.messageComposeDelegate = self;
[self presentModalViewController:controller animated:YES];
}
////// End SMS
}

Answer 1

//Capture part of Screen Shot
UIGraphicsBeginImageContext(self.view.bounds.size);
CGContextRef c = UIGraphicsGetCurrentContext();
CGContextTranslateCTM(c, 0, 98); //
[self.view.layer renderInContext:c];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//Send Screenshot to Pasteboard
UIPasteboard *pasteBoard = [UIPasteboard pasteboardWithName:UIPasteboardNameGeneral create:YES];
pasteBoard.persistent = YES;
NSData *data = UIImagePNGRepresentation(viewImage);
[pasteBoard setData:data forPasteboardType:(NSString *)kUTTypePNG];
NSString *stringURL = #"sms:";
NSURL *url = [NSURL URLWithString:stringURL];
[[UIApplication sharedApplication] openURL:url];