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Create transparent form from png

I have a png i开发者_如何转开发mage that have transparent parts, how to set this png image like background image for my WinForms form and not lose transparency? i Use C#. Thanks!Here I have written a[详细]

2023-04-10 05:54 分类：问答
How to set a pixel as transparent for 8-bit pngs when encoding with libpng?

I\'m trying to mark pixels as transparent when encoding rgb data to 8-bit png image (palette) using libpng. If I create a separate alpha channel in this case, the alpha channel is getting ignored. Is[详细]

2023-04-10 04:10 分类：问答
Is it more efficient to make a half-transparent PNG, or set opacity/alpha-filter on a non-transparent PNG?

The image in question will be reused about 5 times on each page of a website. I can either set the opacity to 0.5 and alpha(opacity) to 50 or I can lower the opacity of the imag开发者_如何学编程e in P[详细]

2023-04-09 18:22 分类：问答
Use PHP to convert JPEGs to transparent PNG

I have a lot of JPEG images that I want to convert to PNG images using PHP. The JPEGs are going to be uploaded by client开发者_如何学Cs so I can\'t trust them to make sure they are in the right format[详细]

2023-04-09 07:29 分类：问答
Dynamic PHP image with a PNG extension

I\'m trying to make an image similar to one of these: http://www.danasoft.com/vipersig.jpg Not really content wise (displaying IP addresses and headers), but more so a PHP image displayed in a PNG fo[详细]

2023-04-09 05:39 分类：问答
dia export to html

Is there any way that I can export dia diagram into html (I know that dia exports to var开发者_运维知识库ious formats such as svg, pdf, ... but I could not find anything that would allow me to export[详细]

2023-04-09 02:52 分类：问答
Using Phantom JS to convert all HTML files in a folder to PNG

I\'ve started using Phantom JS on Windows, but I\'m having a bit of difficulty finding documentation on its capability (probably the root of my problem).[详细]

2023-04-08 12:34 分类：问答
Creating an Icon with a Tranparent Background

I\'m using ImageIcons that I downloaded from a free icon site in my JButtons. Two of them have white backgrounds, and the other one has a black background. I would prefer not to have a background colo[详细]

2023-04-08 03:28 分类：问答
Does it matter what color format an image has when saving it as PNG?

I am creating tiles for a larger image and I\'m saving them to disk. Question: Is there any way I can optimize the image so that reading and decompressing the PNG from disk is faster? Possibly by chan[详细]

2023-04-07 20:35 分类：问答
Can't find logic behind png file sizes

I\'m saving a large number of small png files for use in a game on a phone, so space is at a premium.[详细]

2023-04-07 17:12 分类：问答