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Questions tagged [transparency]

Transparency is the property of being see-through; a transparent object reveals objects behind it. Transparency is also known as alpha blending. The opposite of transparency is opacity.

Transparency in technology is an attribute of a graphical object and refers to the degree to which the object can be seen through.

Objects can be layered on top of one another, the order of which is decided by a . An object which is rendered "on top of" another may have a transparency level where the object underneath is seen through the object on top, with the view of the object underneath blended () with that of the object on top.

Transparency is the opposite of .

See also:

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Howto get transparent Tiles from OSM using OpenLayers

I am implementing a simple Web-based GIS-Application using OpenLayers. I want to display a heatmap as a background-image - just like the hybrid-view of GoogleMaps. This seems to be impossible - I want a nice looking map, so I am using the OSM-Layer…
Fluchtpunkt
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How to dynamically add transparency to iPhone image?

Suppose I have image canvas or previously loaded image which supports transparency (gif/png). What are the steps to implement changing transparency for the image, but not for the whole image, but only a part of it? I undestand I should use…
rattkin
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NSButton not always responding to mouse click

Here is my problem, i have a nib-less app, this app displays (with a fade-in/fade-out effect) a NSWindow which looks like a 10.8 notification. On this notification i have 2 NSButtons which are created programmatically like that : NSImage…
Sicha
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Transparent TMemo - text appears to remain selected when it isn't

I was hoping for some help with regards to a transparent TMemo control in Delphi 7. I found some code online that works well, to an extent, the refresh rate is a bit rubbish but I can live with that. The main problem is that unselected text can…
sxthomson
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JWplayer transparent screencolor parameter

I have FLV file encoded with VP6 flash 8 with alpha. When changing the screencolor parameter in the JWPlayer setup I can see the movie in different background colors (on the transparent part). However, I can't configure the background to be…
omri
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Popup AllowTransparency is killing WebBrowser child

So I have a control in my application that I wanted to utilize the popup for. It is has a WebBrowser control that is a part of it. I notice that whenever I set the following property only the WebBrowser control disappears on my custom…
Steven Combs
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android: Images as buttons with transparency on SurfaceView with MediaPlayer

I have framed layout with ImageView, SurfaceView and control elements as overlaying ImageView. So, a SurfaceView is used to play media with MediaPlayer, and ImageView is used then MediaPlayer preparing media as a still image. Then OnPrepared…
wizemanold
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I am making some parts of java image transparent by some code, it works fine on the laptop I made, but not on others, Why?

The image without transparency is just not visible in other laptops. Also when I make a new Eclipse project: When I copy paste code in separate class files, it works fine on my machine, but not on others, with same code and project settings. The…
riya das
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Cross-platform transparent windows in C++?

I'm wondering how to make a window transparent, not cutout holes or the same transparency overall. Well, just say I want to slap a PNG image of a rose or something and have it blend nicely with stuff behind and allow stuff behind to redraw and have…
Frank
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Making custom widget on Gtk with Transparency

I'm using Gtk# and mono on Linux to make a program where I am creating a slider control over a timeline graph. I have it basically working, but there is one nagging problem that I can not figure out--- how to use transparency when using the…
Jeff Halverson
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Pixmap transparency in PyGTK

How can I create PyGTK pixmaps with one pixel value set to transparent? I know it has something to do with creating a pixmap of depth 1 and setting it as a mask, but all I find is that it either does nothing or totally erases my pixmap when drawn.…
Ignis Umbrae
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How to get a transparent region from UIImage?

I develop a client app. My question is: under the iPhone platform, how do I get a transparent region from UIImage?
eidolonxlj
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Stock button is shown transparent instead of solid on Honeycomb only

I am using the standard buttons in my activities. On tablets with Honeycomg the Buttons are shown transparent (as they look when they are disabled), but they are enabled and also clickable. So they are still funktional but transparent. Only one…
venni
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Color key transparency does not work with SDL_image and PNG files

I am trying to achieve transparency in SDL using color keying. While it does work with BMP files, it doesn't with PNG files. Here is my code: #include #include int main(int argc, char *argv[]) { …
tajmahal
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Transparent Flash BG Lags in Firefox

I have a flash movie with a transparent background over a moving jQuery slideshow. Whenever the slides move (they slide horizontally) the logo's background lags in the sense that it cant keep up with rendering the correct background underneath. It…
Chris Bier
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