Xlib多种显示支持

Question

I want to get display info via Xlib, specifically:

• iterate displays
• get the screen rectangle for each display (relative to the virtual screen - does X11 have the concept of a virtual screen on which physical screens are mapped, similar to Windows and OSX?)
• get the client area rectangle (so screen minus taskbar etc.) for each display

Thanks.

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Half answer: using XineramaQueryScreens() I was able to enumerate displays and get their coordinates in the virtual screen and their sizes. Now how do I get the desktop size, ie the size that the windows maximize to?

Answer 1

您需要阅读_NET_DESKTOP_GEOMETRY （也可能是_NET_DESKTOP_VIEWPORT和_NET_WORKAREA）