How do I get Kartris to render transparent .png files properly???

It is something we have experimented with. If you look near the foot of image.aspx, you can see this code:

            'In theory this lets us output thumbnails
            'in the original format, but PNGs don't
            'seem to work reliably
            'Select Case FInfo.Extension.ToUpper
            '    Case ".PNG"
            '        bmpImage.Save(Response.OutputStream, ImageFormat.Png)
            '    Case ".GIF"
            '        bmpImage.Save(Response.OutputStream, ImageFormat.Gif)
            '    Case Else
            '        bmpImage.Save(Response.OutputStream, ImageFormat.Jpeg)
            'End Select

We didn't get it working reliably, but you can experiment with this. The code is open for this reason; there are also various ways to handle images, so it may be possible that rewriting other parts of this file to use alternative image and graphics methods may resolve this.

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Author	Message
RBaker	Posted Tue 11 Feb 2014
Supreme Being Group: Forum Members Last Active: Fri 14 Feb 2014 Posts: 2, Visits: 3 1,424	I am customizing the Kartris front end skin and I am having issues with how the item images are displaying. My item images are .png files with transparent backgrounds. I upload them through Admin and when I view them on the front end they have black backgrounds- no longer transparent. When I view the source I see Image.aspx?strFileName=p1_01.png, but when I right-click and save as, my pc wants to save it as a .jpg file. Anyone experiencing the same issue AND found a solution? OR does Kartris just not render transparent .png files? Image displayed in cart: Image I uploaded: Tags .png, design, images, transparency, uploader
	REPLY QUOTE LIKE 367
Paul	Posted Thu 13 Feb 2014
große Käse Group: Administrators Last Active: Fri 15 Sep 2023 Posts: 806, Visits: 2,737 449,928	It is something we have experimented with. If you look near the foot of image.aspx, you can see this code: 'In theory this lets us output thumbnails 'in the original format, but PNGs don't 'seem to work reliably 'Select Case FInfo.Extension.ToUpper ' Case ".PNG" ' bmpImage.Save(Response.OutputStream, ImageFormat.Png) ' Case ".GIF" ' bmpImage.Save(Response.OutputStream, ImageFormat.Gif) ' Case Else ' bmpImage.Save(Response.OutputStream, ImageFormat.Jpeg) 'End Select We didn't get it working reliably, but you can experiment with this. The code is open for this reason; there are also various ways to handle images, so it may be possible that rewriting other parts of this file to use alternative image and graphics methods may resolve this. -- If my post solves your issue, can you 'Mark as Answer' so it's easier for other users to find in future. If you would like to be informed of new features, new releases, developments and occasional special bonuses, please sign up to our mailing list: http://bit.ly/19sKMZb
	REPLY QUOTE LIKE 342
RBaker	Posted Fri 14 Feb 2014
Supreme Being Group: Forum Members Last Active: Fri 14 Feb 2014 Posts: 2, Visits: 3 1,424	Awesome Big Cheese. I uncommented the select statement and all is good now. Thanks!
	REPLY QUOTE LIKE 342
djjohnson	Posted Fri 2 May 2014
Supreme Being Group: Forum Members Last Active: Thu 26 Feb 2015 Posts: 45, Visits: 103 21,683	Did you ever get .PNG images to show up correctly with transparency? I uncomment the section and did a build and same results. D.J. Johnson V.P. Development and Operations NTS Services Corp DataBackup.com
	REPLY QUOTE LIKE 316
djjohnson	Posted Sat 3 May 2014
Supreme Being Group: Forum Members Last Active: Thu 26 Feb 2015 Posts: 45, Visits: 103 21,683	I just ended up converting the .png's to .jpg's. D.J. Johnson V.P. Development and Operations NTS Services Corp DataBackup.com
	REPLY QUOTE LIKE 346
Paul	Posted Sun 4 May 2014
große Käse Group: Administrators Last Active: Fri 15 Sep 2023 Posts: 806, Visits: 2,737 449,928	I know we had problems when we tested the code ourselves, which was why we kept it but commented it out. Not sure if the issue is the specific format of PNGs or the server image handling components. Ideally we'd like to switch to PNG as the default format, but the present issues mean JPG is probably safer - though not quite as good. -- If my post solves your issue, can you 'Mark as Answer' so it's easier for other users to find in future. If you would like to be informed of new features, new releases, developments and occasional special bonuses, please sign up to our mailing list: http://bit.ly/19sKMZb
	REPLY QUOTE LIKE 320

How do I get Kartris to render transparent .png files properly???

How do I get Kartris to render transparent .png files properly???

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