XoopsModules25x / apcal

                unset($phpthumb_ico);

                break;

            default:

                $this->DebugMessage('RenderOutput failed because $this->thumbnailFormat "' . $this->thumbnailFormat . '" is not valid', __FILE__, __LINE__);

                ob_end_clean();

                return false;

        }

        ob_end_clean();

        if (!$this->outputImageData) {

        }

        switch ($this->thumbnailFormat) {

            case 'png':

            case 'ico':

                // image has alpha transparency, but output as PNG or ICO which can handle it

                $this->DebugMessage('skipping AlphaChannelFlatten() because ($this->thumbnailFormat == "' . $this->thumbnailFormat . '")', __FILE__, __LINE__);

                return false;

                break;

            case 'gif':

                // image has alpha transparency, but output as GIF which can handle only single-color transparency