#36697 [Asn->Csd]: Transparency is lost when using imagecreatetruecolor

ID: 36697 Updated by: pajoye@php.net Reported By: kraus at phoenixwebsolutions dot de -Status: Assigned +Status: Closed Bug Type: GD related Operating System: Linux PHP Version: 5.1.2 Assigned To: pajoye New Comment: This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2006-03-13 19:53:37] tony2001@php.net Assigned to the maintainer. ------------------------------------------------------------------------ [2006-03-11 15:14:20] kraus at phoenixwebsolutions dot de Description: ------------ If the function imagecreatetruecolor function is used instead of imagecreate the transparent color seems to get lost when scaling down the color palette if the image is exported as gif. Reproduce code: --------------- <?php header ("Content-type: image/png"); $im = @imagecreatetruecolor(50, 100) or die ("Kann keinen neuen GD-Bild-Stream erzeugen"); #$im = @imagecreate(50, 100) # or die ("Kann keinen neuen GD-Bild-Stream erzeugen"); $background_color = ImageColorAllocate ($im, 100, 100, 100); $rect_color = ImageColorAllocate ($im, 200, 0, 0); ImageFilledRectangle($im,0,0,50,100,$backgroundcolor); ImageFilledRectangle($im,0,0,50,50,$rect_color); $text_color = ImageColorAllocate ($im, 233, 14, 91); ImageString ($im, 1, 5, 5, "Ein Test-String", $text_color); $res = imagecolortransparent($im, $background_color); #var_dump($res);var_dump($background_color); ImageGIF($im); ?> ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=36697&edit=1