GLFW

Introduction

GLFW is a free, Open Source, multi-platform library for OpenGL and OpenGL ES application development. It provides a simple, platform-independent API for creating windows and contexts, reading input, handling events, etc.

Version 3.1.2 adds fixes for a large number of bugs that together affect all supported platforms, as well as dynamic loading work that simplifies compilation and linking.

If you are new to GLFW, you may find the introductory tutorial for GLFW 3 useful. If you have used GLFW 2 in the past, there is a transition guide for moving to the GLFW 3 API.

Note that a number of source files have been added or renamed in 3.1, which may require you to update any custom build files you have.

Compiling GLFW

See the Compiling GLFW guide in the GLFW documentation.

Using GLFW

See the Building programs that use GLFW guide in the GLFW documentation.

Reporting bugs

Bugs are reported to our issue tracker. Please always include the name and version of the OS where the bug occurs and the version of GLFW used. If you have cloned it, include the commit ID used.

If it's a build issue, please also include the build log and the name and version of your development environment.

If it's a context creation issue, please also include the make and model of your graphics card and the version of your driver.

This will help both us and other people experiencing the same bug.

Dependencies

GLFW bundles a number of dependencies in the deps/ directory.

Khronos extension headers for API extension symbols used by GLFW
getopt_port for examples with command-line options
TinyCThread for threaded examples
An OpenGL 3.2 core loader generated by glad for examples using modern OpenGL
linmath.h for linear algebra in examples

Changelog

Made all client API functions dynamically loaded
Changed minimum required CMake version to 2.8.12
Replaced GLU with linmath.h in example programs
Merged all cursor test programs into the cursor program
Removed all mention of GLU in examples, build files and package dependencies
Bugfix: Initialization failed on headless systems
Bugfix: The cached current context could get out of sync
Bugfix: glfwIconifyWindow did not restore the original video mode for full screen windows created with GLFW_AUTO_ICONIFY
[Win32] Renamed hybrid GPU override compile-time option to _GLFW_USE_HYBRID_HPG and added support for AMD PowerXpress systems
[Win32] Bugfix: glfwGetVideoModes included unusable modes on some systems
[Win32] Bugfix: glfwWaitEvents would return directly for focused windows in disabled cursor mode
[Cocoa] Bugfix: The cached NSScreen for a monitor could get out of sync
[Cocoa] Bugfix: The GLFW_AUTO_ICONIFY window hint was ignored
[Cocoa] Bugfix: Resizing a window to its minimum size would segfault
[Cocoa] Bugfix: Creating or showing a window would make its context current
[Cocoa] Bugfix: Joysticks connected after glfwInit were not detected
[Cocoa] Bugfix: Cursor creation failed unless a window had been created.
[Cocoa] Bugfix: Window refresh events were not generated by iconification or restoration
[Cocoa] Bugfix: The primary monitor would get reported as disconnected when entering full screen on a dual-GPU machine with automatic graphics switching
[Cocoa] Bugfix: The original video modes were not restored when the application was hidden
[X11] Bugfix: glfwInit would segfault on systems without RandR
[X11] Bugfix: The response to _NET_WM_PING was sent to the wrong window
[X11] Bugfix: Character input via XIM did not work in many cases
[X11] Bugfix: No fallback existed for missing _NET_ACTIVE_WINDOW support
[X11] Bugfix: Some significant window focus events were ignored
[X11] Bugfix: The GLFW_AUTO_ICONIFY window hint was ignored
[X11] Bugfix: The original video mode was not restored on iconification of full screen windows
[X11] Bugfix: GLFW_ARROW_CURSOR selected the wrong cursor image
[X11] Bugfix: The GLFW_DECORATED hint was not ignored for full screen
[X11] Bugfix: glfwWaitEvents did not handle EINTR for select
[X11] Bugfix: glfwWaitEvents could return when no events were available
[X11] Bugfix: XkbGetKeyboard fails on XWayland
[X11] Bugfix: Character input did not work correctly for non-UTF-8 locales
[X11] Bugfix: Long input sequences generated by IMEs were discarded
[WGL] Made all WGL functions dynamically loaded
[WGL] Removed GLFW_USE_DWM_SWAP_INTERVAL compile-time option
[WGL] Bugfix: Swap interval was ignored when DWM was enabled
[WGL] Bugfix: Failure to find a pixel format was reported incorrectly
[GLX] Added dependency on libdl on systems where it provides dlopen
[GLX] Made all GLX functions dynamically loaded
[GLX] Removed _GLFW_HAS_GLXGETPROCADDRESS* and _GLFW_HAS_DLOPEN compile-time options
[GLX] Bugfix: Failure to find a GLXFBConfig was reported incorrectly
[EGL] Made all EGL functions dynamically loaded
[EGL] Bugfix: glfwGetProcAddress did not return the addresses of core functions
[EGL] Bugfix: Failure to find an EGLConfig was reported incorrectly
[NSGL] Bugfix: Failure to find a pixel format was reported incorrectly

Contact

The official website for GLFW is glfw.org. There you can find the latest version of GLFW, as well as news, documentation and other information about the project.

If you have questions related to the use of GLFW, we have a support forum, and the IRC channel #glfw on Freenode.

If you have a bug to report, a patch to submit or a feature you'd like to request, please file it in the issue tracker on GitHub.

Finally, if you're interested in helping out with the development of GLFW or porting it to your favorite platform, join us on GitHub or IRC.

Acknowledgements

GLFW exists because people around the world donated their time and lent their skills.

Bobyshev Alexander
artblanc
arturo
Matt Arsenault
Keith Bauer
John Bartholomew
Niklas Behrens
Niklas Bergström
Doug Binks
blanco
Martin Capitanio
Chi-kwan Chan
Lambert Clara
Andrew Corrigan
Noel Cower
Jarrod Davis
Olivier Delannoy
Paul R. Deppe
Michael Dickens
Jonathan Dummer
Ralph Eastwood
Siavash Eliasi
Michael Fogleman
Gerald Franz
GeO4d
Marcus Geelnard
Eloi Marín Gratacós
Stefan Gustavson
Sylvain Hellegouarch
Matthew Henry
heromyth
Lucas Hinderberger
Paul Holden
Aaron Jacobs
Toni Jovanoski
Arseny Kapoulkine
Osman Keskin
Cameron King
Peter Knut
Eric Larson
Robin Leffmann
Glenn Lewis
Shane Liesegang
Eyal Lotem
Дмитри Малышев
Martins Mozeiko
Tristam MacDonald
Hans Mackowiak
Kyle McDonald
David Medlock
Bryce Mehring
Jonathan Mercier
Marcel Metz
Jonathan Miller
Kenneth Miller
Bruce Mitchener
Jack Moffitt
Jeff Molofee
Jon Morton
Pierre Moulon
Julian Møller
Kamil Nowakowski
Ozzy
Andri Pálsson
Peoro
Braden Pellett
Arturo J. Pérez
Emmanuel Gil Peyrot
Cyril Pichard
Pieroman
Jorge Rodriguez
Ed Ropple
Aleksey Rybalkin
Riku Salminen
Brandon Schaefer
Sebastian Schuberth
Matt Sealey
SephiRok
Steve Sexton
Systemcluster
Dmitri Shuralyov
Daniel Skorupski
Bradley Smith
Julian Squires
Johannes Stein
Justin Stoecker
Elviss Strazdins
Nathan Sweet
TTK-Bandit
Sergey Tikhomirov
A. Tombs
Samuli Tuomola
urraka
Jari Vetoniemi
Ricardo Vieira
Simon Voordouw
Torsten Walluhn
Patrick Walton
Jay Weisskopf
Frank Wille
yuriks
Santi Zupancic
Jonas Ådahl
Lasse Öörni
All the unmentioned and anonymous contributors in the GLFW community, for bug reports, patches, feedback, testing and encouragement

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