[TYPO3-dev] Typo3 create dynamic image from gd..

[ravindra lokhande]

Hello friends, i am new to typo3. i want to create image 	
i have written code : 
                                        header("Content-type: image/png");
					
				 	// Create the image
					 $im = imagecreatetruecolor(800, 30);
					
					// Create some colors
					 $white = imagecolorallocate($im, 255, 255, 255);
					 $grey = imagecolorallocate($im, 128, 128, 128);
					 $black = imagecolorallocate($im, 0, 0, 0);
					 imagefilledrectangle($im, 0, 0, 799, 29, $white);
					
				 	$text = 'Wir bieten eine einzigartige Kombination aus Branchen- und
IT-Wissen. Wir sprechen Ihre Sprache.';
				 		//$font = 'C://WINDOWS/Fonts/arial.ttf';
					$font = 'arial.ttf';
					
					// Add some shadow to the text
					//imagettftext($im, 11, 0, 11, 21, $grey, $font, $text);
					
					// Add the text
					imagettftext($im, 11, 0, 10, 20, $black, $font, $text);
					
					// Using imagepng() results in clearer text compared with imagejpeg()
					imagepng($im);
					imagedestroy($im);

but it gives error: header already sent. 
If there is a ready function in TYPO3, please tell me. i will be thankful.

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