VB.NET中的图像分层 [英] Image Layering in VB.NET

问题描述

大家好，



这是我在这个网站上的第一个问题......可能是互联网上关于VB.NET的第一个问题：D



我是新手，想学习vb.net。



我做了几个处理Photoshop的程序和各种应用程序，裁剪图像，拍摄快照等。



我现在要做的是创建一个可以操作图像的应用程序。

这是我想要做的事情：

1）我有一个像2048,2048一样巨大的画布。

2）我想有多个它上面有图像，并且有一个像photoshop这样的图层系统。

3）我可以使用多个图片盒，我遇到的问题就是让图片框透明，以显示它下面的内容。

4）例如：我有2个重叠的图片框。我想让上面的一个透明到50％的程度，看看下面的一个。

5）如何开始解决这个问题？ GDI +？我需要参考什么？



谢谢和问候

-Videep

解决方案

Img.MakeTransparent（color.Black）



快乐编码！

：）

< blockquote>

要使图片框中的图像透明，您应该使用ALPHA 
 <   pre     lang   =  vb >  
 
如果b IsNot Nothing则
 b.Filters.Alpha（CByte（（20/100）* 255））
 bpImage.BackgroundImage = Nothing 
 bpImage.BackgroundImage = b 
 End if 
 <   b  >  <   / b  >  <   / pre  >  
 
，值略有变化
其中b指的是图片框

Hello Everyone,

This is my first question on this website...probably the first one regarding VB.NET on the internet :D

I am a newbie and want to learn vb.net.

I have made a couple of programs which handle Photoshop and various apps which crop images, take snapshots etc.

What I now want to do is create an application in which I can manipulate images.
Here is what I want to do exactly:
1) I have a canvas which is is huge like 2048,2048.
2) I would like to have multiple images on it and have a layer system like photoshop.
3) I can do it wil multiple pictureboxes, where I am getting stuck is making the picturebox transparent to show what is beneath it.
4) eg: I have 2 overlapping pictureboxes. I would like to make the upper one transparent to an extent like 50% to see the below one.
5) How to start solving this issue? GDI+? what do I need to refer to?

Thanks and Regards
-Videep

解决方案

Img.MakeTransparent(color.Black)

Happy Coding!
:)

to make transparent of image in picture box you should use ALPHA
<pre lang="vb">

If b IsNot Nothing Then
                b.Filters.Alpha(CByte((20 / 100) * 255))
                bpImage.BackgroundImage = Nothing
                bpImage.BackgroundImage = b
End If
<b></b></pre>

with minor changes in values
where b refers to picture box

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