问题
I need an approach how to customize the window style like Steam or Spotify. I don't want to have the boring Windows (or any other OS) look. Can that be done with Qt or the WinApi? Do I need DirectX or OpenGL for doing that?
Best Regards
回答1:
Yes, you can do it with the WinAPI. The primary message you care about is WM_NCPAINT. That's what's sent when the non-client areas of a window (e.g., the frame and title bar) need to be painted.
Note that by default, rendering of the non-client areas is handled by the desktop window manager (DWM). If you're going to handle your own drawing, you usually want to explicitly enable/disable that with DwmSetWindowAttribute. Otherwise, you can get strange symptoms (e.g., if try to switch back to "stock" frames and such, it may not "notice" and start drawing your frame again).
Microsoft has an article on MSDN with more details on doing this in conjunction with DWM.
来源：https://stackoverflow.com/questions/30263371/how-to-change-window-style-theme-in-c