title: Help with changing slider colors on an iphone
body: <p>I need to change slider colors in my iphone app, and I put This:</p>
  
  <pre><code>- (UISlider *)ratioSlider
  {
  
          UIImage *stetchLeftTrack = [[UIImage imageNamed:@"grayslide.png"]
                                      stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0];
          UIImage *stetchRightTrack = [[UIImage imageNamed:@"grayslide.png"]
                                       stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0];
          [ratioSlider setThumbImage: [UIImage imageNamed:@"slider_ball.png"] forState:UIControlStateNormal];
          [ratioSlider setMinimumTrackImage:stetchLeftTrack forState:UIControlStateNormal];
          [ratioSlider setMaximumTrackImage:stetchRightTrack forState:UIControlStateNormal];
  
  }
  </code></pre>
  
  <p>in the "myVIewController.m" file, like in the UICatalog apple example file. I've added all of the images and defined the slider, but all that comes up on the simulator is a normal slider, and the only error/warning in XCode is a warning saying "Warning: control reaches end of non-void function". How do I get this code to work?</p>