png

Saving an array of colour data as a PNG file on DS

I'm looking for a library to save an array of colour data to a PNG file. (That's all there is to it, right? I know very little about the internals of a PNG.) This is for use in Nintendo DS development, so something lightweight is preferable. I don't need any other fancy features like rotation, etc. ...

Using 256 x 256 Vista icon in application.

Hi all, I have an application which I have made a 256 x 256 vista icon for. I was wondering how I would be able to use the 256x256 png in the ico file used as the application icon and show it in a picture box on a form. I am using VB.net but answers in C# are fine. I'm thinking I may have to use reflection. EDIT! Not sure if this ...

Icon Background on IE6

I'm developing a website (using asp.net by the way) and I'm having a problem with IE6. When I use some icons near links, using background-image and padding-left on the links, the icons display nice on FF and Chrome but in IE6 they take a kind of "gray" background, and sometimes the flash strangely. Any ideas? is there some CSS hack to ...

What is the best way to serialize SVG from the client DOM?

I am working on interactive SVG/AJAX interfaces where elements are created and repositioned on-the-fly by users. I'd like to support the ability for users to export their current view to a PNG image and/or an SVG document. I'd really like the SVG document to be as simple as possible (without a lot of nested transforms). Is there any fram...

How can one open a PNG (image) file with VB6 into an RGB array, or R, G, B arrays

How can one open a PNG formatted image file with VB6? Ideally, I (that is my customer) would like to have the PNG file open and placed into seperate R(ed), G(reen) and B(lue) arrays. VB6 is not my tool of choice (for lack of knowledge) and I be thrilled if some one could point me in the right direction for a VB6 solution. ...

How do I get PNGs to work in D2009?

One of Delphi 2009's advertised features was PNG support. That's great, because the Unicode issues break the pngimage.pas library I was using before. Only problem is, I can't find the Delphi 2009 version. Anyone know what it's called, and how difficult it is to migrate existing pngimage.pas-based code to the new library? ...

Issues with Image loading in J2ME applications on Motorola phones

The standard way to load an image in a J2ME application is using the Image.createImage method and the recommended image format is PNG. Now, the J2ME specs dont lay down any restrictions on the implementation of this method or the in memory representation of an Image so, each vendor has a different implementation. Motorola in particula...

Transparent PNG menu item backgrounds in IE6 with rollovers

Hi I have been trying to do this for what feels like all my life I have a list menu with block display links, each link has a sliding doors png background image. I have used this javascript (http://www.ideashower.com/our_solutions/png-hover/) to implement the alphaimageloader fix for ie6 using a transparent gif. When I test it for the ...

How do I resize pngs with transparency in PHP?

I'm attempting to resize pngs with transparent backgrounds in PHP and the code samples I've found online don't work for me. Here's the code I'm using, advice will be much appreciated! $this->image = imagecreatefrompng($filename); imagesavealpha($this->image, true); $newImage = imagecreatetruecolor($width, $height); // Make a new trans...

Passthrough <filname>.png to <filename>8.png if IE<=6 and <filename>8.png exists

I just found out that by converting PNG32 to PNG8 via Photoshop will fix the PNG transparency bug in IE<=6. So I had this thought that instead of serving PNG32 to all browser, why not serve PNG8 if the client is using IE<=6. I'm not really an expert when it comes to htaccess/httpd directives so I'm here for help. The title is the p...

How can you tell png8 from a png24

Hi guys, I'm working on a website that uses lots of png24 files, for transparency. I need to replace them with png8 files, as all the png fix style javascript workarounds for png24 cause IE6 to lock up randomly. See this link to get an idea of the symptoms IE6 displays - http://blogs.cozi.com/tech/2008/03/transparent-pngs-can-deadloc...

Getting .png pixel data in Silverlight

Hi all, We have a Silverlight application that needs to load a number of .png files. We can load the images OK, but Silverlight doesn't support reading the pixel data from the Image class. Can anyone suggest a simple solution for getting at this data? Our current best bet would be a third party .png loading library, but we are having...

PNG Transparency with PHP

Hey having some trouble trying to maintain transparency on a png when i create a thumbnail from it, anyone any experience with this? any help would be great, here's what i am currently doing: $fileName= "../js/ajaxupload/tees/".$fileName; list($width, $height) = getimagesize($fileName); $newwidth = 257; $newheight = 197; $thumb = ima...

PNG image won't show in IE7 or Firefox but works in Opera

I got a webservice which creates a PNG-file and returns a link to it. Then this graphic is used by a website (ASP.NET). IE7 & Firefox 3 can't show this image but in Opera 9.5 it works fine. Did anyone run across the same problem before? Edit: Content-type is set to image/png. The image is created with the library from a 3rd party vend...

How do I view 'raw' PNG image data ...

I'm trying to write an application that converts 48 bit-per-pixel PNG files to a proprietary (Bayer) format. The code (courtesy here) below works great for some PNG file formats, but when I try a bona fide 48 bit PNG the code throws an exception - is there an alternative? static public byte[] BitmapDataFromBitmap(Bitmap objBitmap...

Image transcoding (JPEG to PNG) with Java

Hi In my Java application I would like to download a JPEG, transfer it to a PNG and do something with the resulting bytes. I am almost certain I remember a library to do this exists, I cannot remember its name. Can anyone help me? Thanks! ...

Convert bitmap to PNG in-memory in C++ (win32)

Can I convert a bitmap to PNG in memory (i.e. without writing to a file) using only the Platform SDK? (i.e. no libpng, etc.). I also want to be able to define a transparent color (not alpha channel) for this image. The GdiPlus solution seems to be limited to images of width divisible by 4. Anything else fails during the call to Save()....

openGL into png

I'm trying to convert an openGL [edit: "card that I drew"(?):) thx unwind]containing a lot of textures (nothing moving) into one PNG file that I can use in another part of the framework I'm working with. Is there a C++ library that does that? thanks! ...

getting unitpngfix to work

I'm trying to get the unitpngfix to work but I can't seem to get the png to show up in IE6. This this my code: <html> <head> <style type="text/css"> #boxouter { width: 12em; height: 12em; background: url(gradient.gif) #ffdf00 bottom repeat-x; position: relative; } #boxinnerbr { ...

How do I get an Icon from a png image?

I'm creating an WPF app, so I'm mostly working with the ImageSource class for icons. However, the system tray icon has to be of type System.Drawing.Icon. Is it possible to create such an object from a png image? I have tried the following: private static System.Drawing.Icon _pngIcon; public static System.Drawing.Icon PngIcon { get ...