transparency
How do I alphablend a bitmap onto an owner-drawn button that overlaps other windows?
I am trying to draw a bitmap with an alpha channel (via AlphaBlend) as the face of an owner-drawn button.The problem is that I\'m not sure how to draw the background of the button.The button\'s bitmap[详细]
2023-04-12 18:08 分类:问答WebView transparency does not work when hardware acceleration is turend on
When 开发者_如何学JAVAusing Android 3.0+ and enabling hardware acceleration in your AndroidManifest.xml file, WebViews can no longer be transparent. Even worse, transparent parts of images in your web[详细]
2023-04-12 11:45 分类:问答Artifacts when changing background colour of JTextArea
I\'m having a problem when setting the background colour of aJTextArea after I set its text. The code is as follows:[详细]
2023-04-12 06:32 分类:问答Python PIL: Create indexed color image with transparent background
I wonder how I could create a image with a transparent background and only 2 indexed colours (red and blue) to minimise the file size?[详细]
2023-04-12 03:41 分类:问答PyGTK: CellRendererPixbuf and transparency
I\'m using PyGTK and I want to draw something inside a CellRenderer, so I\'m using a CellRendererPixbuff, and it\'s working. The only problem is that if that drawing has transparency, the output will[详细]
2023-04-11 23:10 分类:问答opencv: how to change the transparency level of an image
Is it possible 开发者_JAVA技巧to change the transparency level of an IplImage (the alhpa channel)?I can do this using cvSet and setting all the values to a cvScalar, but that would change not only the[详细]
2023-04-11 20:33 分类:问答Qt Widget with Transparent Background
(I\'m using PySide, but I think the answer would be the same/similar for any language bindings). I\'m trying to take the shaped clock example, located here, and cause the face of the clock (circle) t[详细]
2023-04-11 14:48 分类:问答Showing a semi-transparent Image object over an IVideoWindow in C# using DirectShow.NET
I\'ve been using DirectShow.NET to interface with a webcam in C# and so far everything has been going smoothly.However, right now I\'m working on trying to set up a method to \"crop\" an image (while[详细]
2023-04-11 12:03 分类:问答How to make MultiHandleSliderExtender transparent?
I ha开发者_如何学Gove a MultiHandleSliderExtender control on a page with a background image. The control is rendered with a solid white background. How can I make it transparent?[详细]
2023-04-11 02:39 分类:问答Change ImageIcon object transparency (alpha)
My aim is to have multiple panels with images that开发者_StackOverflow中文版 have alpha channels (transparent parts) on top of each other. So I followed the code in this site http://tinyurl.com/m27exs[详细]
2023-04-10 17:17 分类:问答