Add Render function

README.md

@@ -33,6 +33,17 @@ $ico_lib->save_ico( $destination );
 
 It takes a source file named `example.gif` and produce an output ICO file named `example.ico`. `example.ico` will contain a single image that is the same size as the source image.
 
+You can also render the gif directly on the browser without saving it on the server:
+
+```php
+require( dirname( __FILE__ ) . '/class-php-ico.php' );
+
+$source = dirname( __FILE__ ) . '/example.gif';
+
+$ico_lib = new PHP_ICO( $source );
+$ico_lib->render_ico();
+````
+
 The ICO file format is capable of holding multiple images, each of a different size. The PHP ICO library opens up this feature of the ICO format as shown in the following example:
 
 ```php

class-php-ico.php

@@ -136,6 +136,24 @@ function save_ico( $file ) {
 		return true;
 	}
 
+	/**
+	 * Display the ICO file data.
+	 *
+	 * @return boolean true on success and false on failure.
+	 */
+	function render_ico() {
+		if ( ! $this->_has_requirements )
+			return false;
+
+		if ( false === ( $data = $this->_get_ico_data() ) )
+			return false;
+
+		header('Content-Type: image/x-icon');
+		echo $data;
+
+		return true;
+	}
+
 	/**
 	 * Generate the final ICO data by creating a file header and adding the image data.
 	 *