uibutton - IOS/Xcode: Name button created in storyboard name so it can be disabled -

i have button created in storyboard taking photo wired action. button says "take photo".

if no camera present, disable button following:

[btnoutlet setenabled:false]; 

how give button name or otherwise identify can disable it. ios newb here if provide code i.e. put info appreciate it. thank you.

here code working currently.

   if (![uiimagepickercontroller issourcetypeavailable:uiimagepickercontrollersourcetypecamera]) {   //would change alert disable take photo button created in storyboard                       uialertview *myalertview = [[uialertview alloc] initwithtitle:@"error"                                                                   message:@"device has no camera"                                                                  delegate:nil                                                         cancelbuttontitle:@"ok"                                                         otherbuttontitles: nil];              [myalertview show];          }     } 

in @interface, add following code.

@property (nonatomic, strong) iboutlet uibutton *thebutton; 

and control-click button in storyboard code you've typed. there should white indicator on left of code indicates button has been linked.

you can disable button such.

[self.thebutton setenabled: no];