UIElement 到图像文件 (WP7)

发布于 2024-11-14 22:04:34 字数 482 浏览 4 评论 0原文

我有一个 StackPanel，其中包含一些我想要放入图像文件（例如 PNG）的矩形。我正在 Windows Phone 7 上开发此程序，我在互联网上找到的大部分信息（我认为）不适用于 WP7。

我认为 System.Windows.Media.Imaging 命名空间是关键，但我不知道从哪里开始。

这基本上就是我想要做的：

StackPanel stack = new StackPanel();
List<Rectangle> recList = new List<Rectangle>();

向 recList 添加一些矩形

foreach(var x in recList)
     stack.Children.Add(x);

，然后将 stackpanel 保存到图像文件...

原文

I have a StackPanel which includes a few Rectangles that I want put to an image file (e.g. PNG). I'm developing this on Windows Phone 7 and most of the information I found on the internet wasn't applicable (I think) to WP7.

I think the System.Windows.Media.Imaging namespace is the key to this, but I'm not sure where to begin.

This is basically what I want to do:

StackPanel stack = new StackPanel();
List<Rectangle> recList = new List<Rectangle>();

add some rectangles to recList

foreach(var x in recList)
     stack.Children.Add(x);

then save the stackpanel to an image file...

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勿忘初心 2024-11-21 22:04:34

您可以使用 WriteableBitmap 来保存图像。

WriteableBitmap wb = new WriteableBitmap(stack, null);
MemoryStream ms = new MemoryStream();

wb.SaveJpeg(ms, myWidth, myHeight, 0, 100);

您可以将 MemoryStream 更改为独立存储流。如果您想在图像控件中显示上述 MemoryStream：

 BitmapImage bmp = new BitmapImage();
 bmp.SetSource(ms);
 image1.Source = bmp;

或者，保存到独立存储：

using (var isoFileStream = new IsolatedStorageFileStream("myPicture.jpg", FileMode.OpenOrCreate, IsolatedStorageFile.GetUserStoreForApplication())) 
{                     
    wb.SaveJpeg(isoFileStream, myWidth, myHeight, 0, 100);                    
}

You can use a WriteableBitmap to save the image.

WriteableBitmap wb = new WriteableBitmap(stack, null);
MemoryStream ms = new MemoryStream();

wb.SaveJpeg(ms, myWidth, myHeight, 0, 100);

You can change the MemoryStream to be an Isolated Storage stream instead. If you want to display the above MemoryStream in an Image control:

 BitmapImage bmp = new BitmapImage();
 bmp.SetSource(ms);
 image1.Source = bmp;

Or, saving to Isolated Storage:

using (var isoFileStream = new IsolatedStorageFileStream("myPicture.jpg", FileMode.OpenOrCreate, IsolatedStorageFile.GetUserStoreForApplication())) 
{                     
    wb.SaveJpeg(isoFileStream, myWidth, myHeight, 0, 100);                    
}

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