如何制作标签和标签Windows Mobile 上的其他控件透明且带有背景图像？
我正在用 C# 开发智能设备应用程序。我是 Windows Mobile 新手。我已使用以下代码将背景图像添加到应用程序中的表单中。我想做标签&该窗体上的其他控件透明，以便我的 Windows 窗体能够正确显示。
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Bitmap CreateCustomerImage = new Bitmap(@"/Storage Card/background.png");
e.Graphics.DrawImage(CreateCustomerImage, 0, 0);
}
怎么办？如何解决这个问题呢？您能给我提供任何可以解决上述问题的代码或链接吗？
I am developing the smart device application in C#. I am new to the windows mobile. I have added the background image to the form in my application by using the following code. I want to make label & other controls on this form transparent so that my windows form will be displayed properly.
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Bitmap CreateCustomerImage = new Bitmap(@"/Storage Card/background.png");
e.Graphics.DrawImage(CreateCustomerImage, 0, 0);
}
how to do this ? How to solve this problem? Can you provide me any code or link through which I can solve the above issue?
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Windows CE 本质上并不支持透明控件，这往往是一个巨大的痛苦。您必须使用 ColorKey 透明度之类的东西，因此在 OnPaint 中，您需要用一种颜色填充背景（洋红色是一种流行的颜色），并使用 SetColorKey 使该颜色透明。
网上有一些关于色键透明度的教程。 这是我刚刚在搜索引擎中找到的一个，看起来很合理，但也可以随意搜索其他引擎。
当您在容器控件中拥有控件（然后该控件位于窗体上）时，就会发生这种情况。为了使其正常工作，您必须从表单一直向下级联调用剪切区域。我没有现成的示例，该示例不在运输项目内，因此我无法轻松发布它。不过，如果您遇到这种情况，请更新问题，我会看看是否可以提取一些内容。
Windows CE doesn't inherently support transparent controls, which tends to be a huge pain. You have to use something like ColorKey transparency, so in your OnPaint, you need to fill the background with a color (magenta is a popular one) and use SetColorKey to make that color transparent.
There are several tutorials online for colorkey transparency. Here is one that I just found with a search engine that looks reasonable but feel free to search for others as well.
The place this falls down is when you have controls in a container control, which is then on the Form. To get that to work right you have to cascade calls to clipping regions from the Form all the way down. I don't have a ready sample of this that isn't inside a shipping project, so I can't easily post it. If you run into this, though, update the question and I'll see if I can extract something.