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The stages of me learning XCB, both in C++ and Rust. There are a couple of side lessons (CMake and vendoring) that are as aside to the whole story, but they're at least important to preserve.
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Elf M. Sternberg bafa8bfd23 In this commit, we learned about X11 iterators, which iterate through 
monstrous things allocated in memory that you just have to "know" are
of a certain structure.  In this case, we used `xcb_screen_next` to
say that we want the first (and all) screens attached to our current
X11 session.  And we used
`xcb_setup_roots_iterator(xcb_get_setup(connection))` to initialize
our iterator to our connection object in local memory.

Other things we've learned along the way: the file description that
represents our connection can be a TCP/IP socket or a Unix Domain
socket (a filesystem socket, named or not), and the only way to know
which is to find if there's a hostname before the colon ':' in the
display name of the server.  Not sure how that's going to work.

Also, found a really good reference: [Basic Graphics Tutorial with
XCB](https://www.x.org/releases/X11R7.6/doc/libxcb/tutorial/index.html).
It doesn't cover our specific use-case, but it's worth looking into.
 		2022-02-17 18:25:49 -08:00
docs In this commit, we learned about X11 iterators, which iterate through 2022-02-17 18:25:49 -08:00
src In this commit, we learned about X11 iterators, which iterate through 2022-02-17 18:25:49 -08:00
.gitignore Initial commit: XRandR connects to the server via XCB. 2022-02-17 07:01:34 -08:00
CMakeLists.txt Initial commit: XRandR connects to the server via XCB. 2022-02-17 07:01:34 -08:00
LICENSE Initial commit: XRandR connects to the server via XCB. 2022-02-17 07:01:34 -08:00
Makefile Initial commit: XRandR connects to the server via XCB. 2022-02-17 07:01:34 -08:00
README.md Initial commit: XRandR connects to the server via XCB. 2022-02-17 07:01:34 -08:00

README.md

WHAT:

This is an attempt to write a simple iteration of XRandR using XCB and C++.

WHY:

I'm not familiar enough with this ecosystem to be useful in it, and I need to start getting some familiarity with it before I start hacking a Rust project that needs XCB/XRandR capability.

REQURIEMENTS:

This code has been tested with gcc-7.3, and should work on any C++17-compliant compiler with the relevant standard library, and obviously X Windows.

STATUS:

In progress.

DETAILS:

BUILDING:

From the base directory of the project:

mkdir build
cd build
cmake ..
make