WPF 无法将 system.drawing.bitmap 隐式转换为 media.brush [英] WPF cannot implicitly convert system.drawing.bitmap to media.brush

问题描述

我想在我的 WPF 应用程序中手动更改按钮的背景.

I want to change the background of a button manually in my WPF app.

我有一张图片导入到我的资源中，我想做:

I have an image imported into my resources and I want to do:

MyButton.Background = MyProject.Properties.Resources.myImage;

但我收到错误:

无法将 system.drawing.bitmap 隐式转换为 media.brush

cannot implicitly convert system.drawing.bitmap to media.brush

我该怎么做??

推荐答案

您应该先阅读有关画笔的信息 这里.

You should read about brushes first here.

然后使用ImageBrush，像这样:

MyButton.Background = new ImageBrush(...);

(或者，也许，将画笔放入资源中...)

(or, maybe, put the brush into resources...)

更新

您可以找到如何从位图轻松创建图像源.例如，此处.喜欢:

You can find how to create imageSource from bitmap easilly. for example, here. Like:

var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(MyProject.Properties.Resources.myImage.GetHbitmap(),
                                  IntPtr.Zero,
                                  Int32Rect.Empty,
                                  BitmapSizeOptions.FromEmptyOptions());
MyButton.Background = new ImageBrush(bitmapSource);

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