All Questions

828
votes
10answers
653073 views

Hex transparency in colors

I'm working on implementing a wigdget transparency option for my app widget although I'm having some trouble getting the hex color values right. Being completely new to hex color transparency I search...
78
votes
8answers
38008 views

How to make an OpenGL rendering context with transparent background?

Rendering contexts usually have a solid color on the background (black or whatever, see the image below): I'm wondering if it's possible to setup a window, with no decorations AND with the transpar...
88
votes
9answers
83052 views

Can PNG image transparency be preserved when using PHP's GDlib imagecopyresampled?

The following PHP code snippet uses GD to resize a browser-uploaded PNG to 128x128. It works great, except that the transparent areas in the original image are being replaced with a solid color- black...
26
votes
3answers
35629 views

Border with rounded corners & transparency

The following screenshot shows a test of TextBubbleBorder1. I would like to make the corners of the component that are outside the rectangle to be entirely transparent & show whatever component i...
445
votes
11answers
533745 views

How to make a background 20% transparent on Android

How do I make the background of a Textview about 20% transparent (not fully transparent), where there is a color in the background (i.e. white)?
213
votes
12answers
124193 views

How can I produce an effect similar to the iOS 7 blur view?

I'm trying to replicate this blurred background from Apple's publicly released iOS 7 example screen: This question suggests applying a CI filter to the contents below, but that's a whole different ...
166
votes
6answers
115599 views

Understanding colors on Android (six characters)

I am trying to understand how colors work in Android. I have this color set as the background of my LinearLayout, and I get a background gray with some transparency: <gradient android:startColor="...
42
votes
5answers
17740 views

Transparent hollow or cut out circle

Is it possible to cut out a hollow circle using only CSS? This we can all do: But can we do this? The circle must be hollow and transparent. Thus the problem is not solved by putting a solid co...
38
votes
9answers
119909 views

How can I set the opacity or transparency of a Panel in WinForms?

I was wondering how to change or modify the transparency of a Panel in C#, not the whole form, but the panel only.. I've seen many C# tutorials on Opacity, but its for the Form. im looking for how it ...
22
votes
6answers
43393 views

Transparent images with C# WinForms

I am working on a Windows Forms application in VS 2008, and I want to display one image over the top of another, with the top image being a gif or something with transparent parts. Basically I have a...

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