glfw/README.md

# GLFW

[![Build status](https://github.com/glfw/glfw/actions/workflows/build.yml/badge.svg)](https://github.com/glfw/glfw/actions)
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## Introduction

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

GLFW natively supports Windows, macOS and Linux and other Unix-like systems.  On
Linux both Wayland and X11 are supported.

GLFW is licensed under the [zlib/libpng
license](https://www.glfw.org/license.html).

You can [download](https://www.glfw.org/download.html) the latest stable release
as source or Windows binaries.  Each release starting with 3.0 also has
a corresponding [annotated tag](https://github.com/glfw/glfw/releases) with
source and binary archives.

The [documentation](https://www.glfw.org/docs/latest/) is available online and is
included in all source and binary archives.  See the [release
notes](https://www.glfw.org/docs/latest/news.html) for new features, caveats and
deprecations in the latest release.  For more details see the [version
history](https://www.glfw.org/changelog.html).

The `master` branch is the stable integration branch and _should_ always compile
and run on all supported platforms, although details of newly added features may
change until they have been included in a release.  New features and many bug
fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until
they are stable enough to merge.

If you are new to GLFW, you may find the
[tutorial](https://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful.  If
you have used GLFW 2 in the past, there is a [transition
guide](https://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
3 API.

GLFW exists because of the contributions of [many people](CONTRIBUTORS.md)
around the world, whether by reporting bugs, providing community support, adding
features, reviewing or testing code, debugging, proofreading docs, suggesting
features or fixing bugs.


## Compiling GLFW

GLFW is written primarily in C99, with parts of macOS support being written in
Objective-C.  GLFW itself requires only the headers and libraries for your OS
and window system.  It does not need any additional headers for context creation
APIs (WGL, GLX, EGL, NSGL, OSMesa) or rendering APIs (OpenGL, OpenGL ES, Vulkan)
to enable support for them.

GLFW supports compilation on Windows with Visual C++ 2013 and later, MinGW and
MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
and Clang.  It will likely compile in other environments as well, but this is
not regularly tested.

There are [pre-compiled binaries](https://www.glfw.org/download.html) available
for all supported compilers on Windows and macOS.

See the [compilation guide](https://www.glfw.org/docs/latest/compile.html) for
more information about how to compile GLFW yourself.


## Using GLFW

See the [documentation](https://www.glfw.org/docs/latest/) for tutorials, guides
and the API reference.


## Contributing to GLFW

See the [contribution
guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
more information.


## System requirements

GLFW supports Windows XP and later and macOS 10.11 and later.  Linux and other
Unix-like systems running the X Window System are supported even without
a desktop environment or modern extensions, although some features require
a running window or clipboard manager.  The OSMesa backend requires Mesa 6.3.

See the [compatibility guide](https://www.glfw.org/docs/latest/compat.html)
in the documentation for more information.


## Dependencies

GLFW itself needs only CMake 3.4 or later and the headers and libraries for your
OS and window system.

The examples and test programs depend on a number of tiny libraries.  These are
located in the `deps/` directory.

 - [getopt\_port](https://github.com/kimgr/getopt_port/) for examples
   with command-line options
 - [TinyCThread](https://github.com/tinycthread/tinycthread) for threaded
   examples
 - [glad2](https://github.com/Dav1dde/glad) for loading OpenGL and Vulkan
   functions
 - [linmath.h](https://github.com/datenwolf/linmath.h) for linear algebra in
   examples
 - [Nuklear](https://github.com/Immediate-Mode-UI/Nuklear) for test and example UI
 - [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk

The documentation is generated with [Doxygen](https://doxygen.org/) if CMake can
find that tool.


## Reporting bugs

Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
Please check the [contribution
guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
information on what to include when reporting a bug.


## Changelog since 3.4

 - Added `GLFW_UNLIMITED_MOUSE_BUTTONS` input mode that allows mouse buttons beyond
   the limit of the mouse button tokens to be reported (#2423)
 - [Cocoa] Added `QuartzCore` framework as link-time dependency
 - [Cocoa] Removed support for OS X 10.10 Yosemite and earlier (#2506)
 - [Wayland] Bugfix: The fractional scaling related objects were not destroyed
 - [Wayland] Bugfix: `glfwInit` would segfault on compositor with no seat (#2517)
 - [Wayland] Bugfix: A drag entering a non-GLFW surface could cause a segfault
 - [Null] Added Vulkan 'window' surface creation via `VK_EXT_headless_surface`
 - [Null] Added EGL context creation on Mesa via `EGL_MESA_platform_surfaceless`
 - [EGL] Added `GLFW_ANGLE_PLATFORM_TYPE_D3D11ON12` init hint for D3D11on12 support
 - [EGL] Allowed native access on Wayland with `GLFW_CONTEXT_CREATION_API` set to
   `GLFW_NATIVE_CONTEXT_API` (#2518)


## Contact

On [glfw.org](https://www.glfw.org/) 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
[forum](https://discourse.glfw.org/).

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](https://github.com/glfw/glfw/issues) 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 the forum or GitHub.
Removed version noise. 2013-06-13 13:07:28 +00:00			`# GLFW`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Migrate from Travis CI to GitHub Actions The old Travis CI .org service has been throttled for a while now and is said to be shutting down completely next week. This migrates the Travis CI build jobs to GitHub Actions, with minor changes. - The trailing whitespace detection has been removed for now. - The libegl1-mesa-dev dependency for Wayland has been removed as it appears to no longer be necessary for building. 2021-06-07 20:21:23 +00:00			`[![Build status](https://github.com/glfw/glfw/actions/workflows/build.yml/badge.svg)](https://github.com/glfw/glfw/actions)`
CI file fixes 2016-02-04 13:58:44 +00:00			`[![Build status](https://ci.appveyor.com/api/projects/status/0kf0ct9831i5l6sp/branch/master?svg=true)](https://ci.appveyor.com/project/elmindreda/glfw)`
Add initial Travis CI file 2015-04-14 21:47:17 +00:00
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00			`## Introduction`

Documentation work 2016-08-08 23:34:56 +00:00			`GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan`
			`application development. It provides a simple, platform-independent API for`
			`creating windows, contexts and surfaces, reading input, handling events, etc.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Documentation work 2019-04-15 23:36:49 +00:00			`GLFW natively supports Windows, macOS and Linux and other Unix-like systems. On`
Wayland related documentation work 2024-02-19 14:06:59 +00:00			`Linux both Wayland and X11 are supported.`
Documentation work 2017-01-29 19:10:53 +00:00
Documentation work 2016-08-17 14:48:22 +00:00			`GLFW is licensed under the [zlib/libpng`
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`license](https://www.glfw.org/license.html).`
Start 3.2.1 2016-06-05 17:35:39 +00:00
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`You can [download](https://www.glfw.org/download.html) the latest stable release`
Documentation updates for 3.4 release 2024-02-22 21:22:47 +00:00			`as source or Windows binaries. Each release starting with 3.0 also has`
			`a corresponding [annotated tag](https://github.com/glfw/glfw/releases) with`
			`source and binary archives.`
Documentation work 2016-08-17 14:48:22 +00:00
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`The [documentation](https://www.glfw.org/docs/latest/) is available online and is`
Documentation work 2019-04-15 23:36:49 +00:00			`included in all source and binary archives. See the [release`
			`notes](https://www.glfw.org/docs/latest/news.html) for new features, caveats and`
			`deprecations in the latest release. For more details see the [version`
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`history](https://www.glfw.org/changelog.html).`
Documentation work 2017-01-29 19:10:53 +00:00
			The `master` branch is the stable integration branch and _should_ always compile
			`and run on all supported platforms, although details of newly added features may`
			`change until they have been included in a release. New features and many bug`
			`fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until`
			`they are stable enough to merge.`
Start 3.3 2016-08-18 21:42:15 +00:00
Updated readme links to guides. 2013-04-07 11:26:06 +00:00			`If you are new to GLFW, you may find the`
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`[tutorial](https://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful. If`
Documentation work 2017-07-11 22:21:17 +00:00			`you have used GLFW 2 in the past, there is a [transition`
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`guide](https://www.glfw.org/docs/latest/moving.html) for moving to the GLFW`
Documentation work 2017-07-11 22:21:17 +00:00			`3 API.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Move list of contributors to separate file Fixes #1839 2021-07-19 16:25:50 +00:00			`GLFW exists because of the contributions of [many people](CONTRIBUTORS.md)`
			`around the world, whether by reporting bugs, providing community support, adding`
			`features, reviewing or testing code, debugging, proofreading docs, suggesting`
			`features or fixing bugs.`

Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Moved GLFW compilation guide to docs. 2013-10-27 11:50:33 +00:00			`## Compiling GLFW`
Cross-linked build guides. 2013-10-21 20:23:15 +00:00
Update compilation-related parts of README 2024-01-29 21:47:04 +00:00			`GLFW is written primarily in C99, with parts of macOS support being written in`
			`Objective-C. GLFW itself requires only the headers and libraries for your OS`
			`and window system. It does not need any additional headers for context creation`
			`APIs (WGL, GLX, EGL, NSGL, OSMesa) or rendering APIs (OpenGL, OpenGL ES, Vulkan)`
			`to enable support for them.`
Documentation work [ci skip] 2016-07-14 16:32:30 +00:00
Update compilation-related parts of README 2024-01-29 21:47:04 +00:00			`GLFW supports compilation on Windows with Visual C++ 2013 and later, MinGW and`
Update default name from OS X to macOS Note that earlier releases are still referred to by their proper names; OS X <version> or Mac OS X <version>. 2016-10-19 22:50:54 +00:00			`MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC`
Documentation work [ci skip] 2016-07-14 16:29:39 +00:00			`and Clang. It will likely compile in other environments as well, but this is`
			`not regularly tested.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Update compilation-related parts of README 2024-01-29 21:47:04 +00:00			`There are [pre-compiled binaries](https://www.glfw.org/download.html) available`
			`for all supported compilers on Windows and macOS.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`See the [compilation guide](https://www.glfw.org/docs/latest/compile.html) for`
Documentation work 2017-07-11 22:21:17 +00:00			`more information about how to compile GLFW yourself.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Documentation work 2016-07-14 16:02:44 +00:00
Documentation work [ci skip] 2016-07-14 16:11:17 +00:00			`## Using GLFW`
Documentation work 2016-07-14 16:02:44 +00:00
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`See the [documentation](https://www.glfw.org/docs/latest/) for tutorials, guides`
Documentation work 2017-01-29 19:10:53 +00:00			`and the API reference.`


			`## Contributing to GLFW`

			`See the [contribution`
Move contribution guide to visible directory 2017-11-20 17:55:43 +00:00			`guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for`
Documentation work 2017-01-29 19:10:53 +00:00			`more information.`
Documentation work 2016-07-14 16:02:44 +00:00

Documentation work [ci skip] 2016-07-14 16:11:17 +00:00			`## System requirements`
Documentation work 2016-07-14 16:02:44 +00:00
Cocoa: Remove support for OS X 10.10 Yosemite Fixes #2506 2024-04-07 17:26:01 +00:00			`GLFW supports Windows XP and later and macOS 10.11 and later. Linux and other`
Documentation work 2017-01-29 19:10:53 +00:00			`Unix-like systems running the X Window System are supported even without`
			`a desktop environment or modern extensions, although some features require`
			`a running window or clipboard manager. The OSMesa backend requires Mesa 6.3.`
Documentation work 2016-07-14 16:02:44 +00:00
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`See the [compatibility guide](https://www.glfw.org/docs/latest/compat.html)`
Documentation work [ci skip] 2016-07-14 16:19:46 +00:00			`in the documentation for more information.`
Documentation work 2016-07-14 16:02:44 +00:00

Added dependency section to readme. 2014-01-12 04:40:36 +00:00			`## Dependencies`

Fix minimum CMake version in README 2024-02-29 14:39:21 +00:00			`GLFW itself needs only CMake 3.4 or later and the headers and libraries for your`
Update minimum required CMake version to 3.1 2019-11-26 17:09:22 +00:00			`OS and window system.`
Documentation work 2016-08-08 23:34:56 +00:00
Documentation work [ci skip] 2016-02-08 15:23:44 +00:00			`The examples and test programs depend on a number of tiny libraries. These are`
			located in the `deps/` directory.
Added dependency section to readme. 2014-01-12 04:40:36 +00:00
Clarified dependency list. 2014-06-18 14:13:49 +00:00			`- [getopt\_port](https://github.com/kimgr/getopt_port/) for examples`
			`with command-line options`
Updated TinyCThread URL. 2014-10-15 01:55:25 +00:00			`- [TinyCThread](https://github.com/tinycthread/tinycthread) for threaded`
Clarified dependency list. 2014-06-18 14:13:49 +00:00			`examples`
Replace glad and the Vulkan SDK with glad2 This removes all dependencies from the GLFW test programs on the Vulkan SDK. It also removes support for linking the GLFW shared library (dynamic library, DLL) against the Vulkan loader static library. 2019-04-14 15:34:38 +00:00			`- [glad2](https://github.com/Dav1dde/glad) for loading OpenGL and Vulkan`
			`functions`
Add linmath.h to readme dependency list 2015-08-09 14:58:25 +00:00			`- [linmath.h](https://github.com/datenwolf/linmath.h) for linear algebra in`
			`examples`
Update repo URL for Nuklear Fixes #1826. 2021-01-03 20:13:02 +00:00			`- [Nuklear](https://github.com/Immediate-Mode-UI/Nuklear) for test and example UI`
Add stb_image_write 2016-10-13 15:42:44 +00:00			`- [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk`
Add basic Vulkan support Added GLFW_INCLUDE_VULKAN. Added glfwVulkanSupported, glfwGetRequiredInstanceExtensions, glfwGetInstanceProcAddress, glfwGetPhysicalDevicePresentationSupport and glfwCreateWindowSurface. Added port of LunarG SDK tri example. 2015-08-10 18:19:04 +00:00
Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`The documentation is generated with [Doxygen](https://doxygen.org/) if CMake can`
Documentation work 2017-07-11 22:21:17 +00:00			`find that tool.`
Documentation work [ci skip] 2016-02-08 15:23:44 +00:00
Added dependency section to readme. 2014-01-12 04:40:36 +00:00
Documentation work [ci skip] 2016-07-14 16:32:30 +00:00			`## Reporting bugs`

			`Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).`
			`Please check the [contribution`
Move contribution guide to visible directory 2017-11-20 17:55:43 +00:00			`guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for`
Documentation work [ci skip] 2016-07-14 16:32:30 +00:00			`information on what to include when reporting a bug.`


Start 3.5 2024-02-29 14:28:46 +00:00			`## Changelog since 3.4`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
Unlimited mouse button input mode This adds the GLFW_UNLIMITED_MOUSE_BUTTONS input mode which permits mouse buttons over GLFW_MOUSE_BUTTON_LAST to be reported to the mouse button callback. Closes #2423 2024-02-29 15:50:50 +00:00			- Added `GLFW_UNLIMITED_MOUSE_BUTTONS` input mode that allows mouse buttons beyond
			`the limit of the mouse button tokens to be reported (#2423)`
Cocoa: Add QuartzCore as a link-time dependency 2024-04-07 17:39:52 +00:00			- [Cocoa] Added `QuartzCore` framework as link-time dependency
Cocoa: Remove support for OS X 10.10 Yosemite Fixes #2506 2024-04-07 17:26:01 +00:00			`- [Cocoa] Removed support for OS X 10.10 Yosemite and earlier (#2506)`
Wayland: Fix leak of surface scaling objects 2024-03-08 14:22:36 +00:00			`- [Wayland] Bugfix: The fractional scaling related objects were not destroyed`
Wayland: Fix segfault when there is no seat Bug encountered running on a headless instance of Weston. Fixes #2517 2024-03-25 20:00:08 +00:00			- [Wayland] Bugfix: `glfwInit` would segfault on compositor with no seat (#2517)
Wayland: Fix possible segfault on drag enter Found with Clang static analysis. 2024-04-08 16:50:08 +00:00			`- [Wayland] Bugfix: A drag entering a non-GLFW surface could cause a segfault`
Null: Add Vulkan 'window' surface creation This adds support for Vulkan 'window' surface creation on the Null platform via the VK_EXT_headless_surface extension, where available. Tested with MoltenVK. 2024-03-11 10:33:51 +00:00			- [Null] Added Vulkan 'window' surface creation via `VK_EXT_headless_surface`
Null: Add limited EGL context creation on Mesa This provides very limited support for context creation via EGL on the Null platform. It supports Unix-like systems with a version of Mesa that provides EGL_MESA_platform_surfaceless. Even then, the actual framebuffer provided is not resized along with the 'window'. That will hopefully change once context and framebuffer creation are separated, but this commit should at least allow more applications than before to run on the Null platform. 2024-03-11 13:29:07 +00:00			- [Null] Added EGL context creation on Mesa via `EGL_MESA_platform_surfaceless`
Update to latest master and resolve conflicts. 2024-04-21 04:58:34 +00:00			- [EGL] Added `GLFW_ANGLE_PLATFORM_TYPE_D3D11ON12` init hint for D3D11on12 support
EGL: Allow native access with defaults on Wayland The intent of enforcing GLFW_EGL_CONTEXT_API for EGL native access functions was to ensure that the application had requested the same context creation API at window creation time that it then attempted native access for. With the 3.4 ABI this both isn't true anymore, as a single binary may have multiple meanings of GLFW_NATIVE_CONTEXT_API, and is no longer necessary, since glfwGetPlatform provides enough information to disambiguate even without knowing what GLFW_PLATFORM was set to. This all leaves the requirement that the context creation API be GLFW_EGL_CONTEXT_API as just an unnecessary annoyance. Fixes #2518 2024-03-25 20:02:10 +00:00			- [EGL] Allowed native access on Wayland with `GLFW_CONTEXT_CREATION_API` set to
			`GLFW_NATIVE_CONTEXT_API` (#2518)
Fix glfwMaximizeWindow not checking window mode 2016-06-16 10:52:22 +00:00
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
			`## Contact`

Fix some documentation URLs still using http: Some URLs in the documentation were overlooked during the switch to https: for the GLFW website. This updates those and a few third-party URLs. 2021-06-09 20:43:27 +00:00			`On [glfw.org](https://www.glfw.org/) you can find the latest version of GLFW, as`
Documentation work 2016-08-02 13:58:58 +00:00			`well as news, documentation and other information about the project.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
			`If you have questions related to the use of GLFW, we have a`
Remove further traces of IRC channel 2024-01-25 15:30:56 +00:00			`[forum](https://discourse.glfw.org/).`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
			`If you have a bug to report, a patch to submit or a feature you'd like to`
Updated contact information. 2013-06-24 12:28:42 +00:00			`request, please file it in the`
			`[issue tracker](https://github.com/glfw/glfw/issues) on GitHub.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00
			`Finally, if you're interested in helping out with the development of GLFW or`
Remove further traces of IRC channel 2024-01-25 15:30:56 +00:00			`porting it to your favorite platform, join us on the forum or GitHub.`
Replaced readme.html with README.md. Removed historic changelog, updated build and use documentation, reformatted contributor list, removed structure table, etc. 2013-02-04 09:46:02 +00:00