C#/ WPF:RichTextBox的:查找所有图片 [英] C# / WPF: Richtextbox: Find all Images
问题描述
我想与内联图像聊天。
RichTextBox的好,因为我可以将图像,但我要发送的文字/图片分开。
-first:发送文本(并将在文本中的图像占位符)。
- 第二:发送图像和占位符代替它。
i want a chat with inline images. The richtextbox good, because i can place images in it, but i want to send the text / images separate. -first: send the text (and place a image-placeholder in the text). -second: send the image and replace it with the placeholder.
有关,我需要删除所有图像RichTextBox的(并把他们分开)。
,而我怎么能找到图片
For that i need to remove all images in the richtextbox (and send them separate). But how can i find the images?
和BTW:??是否有可能重新调整依赖于RichTextBox的宽度的图片
And btw: Is it possible to rescale the image dependent on the width of the richtextbox?
感谢您:)
推荐答案
要找到所有图像在一个RichTextBox,你需要通过所有段和内联遍历;然后,你可以做任何你需要的图片。例如,下面的代码将增加一个RichTextBox内的所有图像的大小(1个像素)。
To find all images in a RichTextBox, you need to traverse through all Paragraphs and its Inlines; and then you can do whatever you need with the image. For example, the following code will increase the size (by 1 pixel) of all images inside a RichTextBox.
public static void ResizeRtbImages(RichTextBox rtb)
{
foreach (Block block in rtb.Blocks)
{
if (block is Paragraph)
{
Paragraph paragraph = (Paragraph)block;
foreach (Inline inline in paragraph.Inlines)
{
if (inline is InlineUIContainer)
{
InlineUIContainer uiContainer = (InlineUIContainer)inline;
if (uiContainer.Child is Image)
{
Image image = (Image)uiContainer.Child;
image.Width = image.ActualWidth + 1;
image.Height = image.ActualHeight + 1;
}
}
}
}
}
}
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