Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
534 views
in Technique[技术] by (71.8m points)

winforms - Windows Form Fonts Questions Part 1

I have some user controls in a windows form. I wonder

  1. if i set the Font property of the main form, will its child get a) a copy of the new Font, or b) a reference to the new Font, or c) nothing?

  2. Does a font need to be disposed? For example, can I do the following code safely?

    form.Font = new Font(...);

  3. Will a font get disposed automatically when the parent (Form or UserControl) is disposed?

Thanks,
Gilbert

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
  1. Both. The Font property is its own .NET object. Winforms however caches the native Windows font, they are fairly expensive to create. The .NET wrapper object is quite small.

  2. Yes. The code is fine, the Font property setter already disposes the previously assigned font.

  3. Yes, it is disposed by the UserControl. Which in turn is automatically disposed by its parent.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...