, float, float, float)</code>
 使用滤镜分别生成RolloverIcon、PressedIcon并设置之.</div>
<dl><dt><span class="strong">参数:</span></dt><dd><code>btn</code> - </dd><dd><code>ico</code> - </dd><dt><span class="strong">从以下版本开始:</span></dt>
  <dd>3.5</dd></dl>
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<h4>paintComponent</h4>
<pre>public&nbsp;void&nbsp;paintComponent(java.awt.Graphics&nbsp;g)</pre>