f9fc556f4a
Since we might be using GdkGLContext across different threads and may be using GdkGLContext with different libraries or programs that make the WGL context current outside of GTK/GDK, make things safer for such applications or libraries, such as GstGL. This will make some wgl*() calls in ->make_current() and ->dispose() link directly to the system's/ICD opengl32.dll instead of going through the function pointers that are acquired via libepoxy, which can be rendered invalid when the WGL context is made current outside of GdkGLContext, leading to weird crashes. By linking directly to opengl32.dll, we are assured that these wgl*() calls will be carried out correctly. Note that this is not done when initializing or realizing the WGL context as we are in the same thread as these are all carried out within GTK/GDK, as it should not be necessary to do so there.
General Information
GTK is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK is suitable for projects ranging from small one-off projects to complete application suites.
GTK is free software and part of the GNU Project. However, the licensing terms for GTK, the GNU LGPL, allow it to be used by all developers, including those developing proprietary software, without any license fees or royalties.
The official download locations are:
The official web site is:
Installation
See the file INSTALL.md
How to report bugs
Bugs should be reported to the GTK issue tracker. You will need to create an account for yourself.
In the bug report please include:
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Information about your system. For instance:
- What operating system and version
- For Linux, what version of the C library
And anything else you think is relevant.
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How to reproduce the bug.
If you can reproduce it with one of the test programs that are built in the tests/ subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.
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If the bug was a crash, the exact text that was printed out when the crash occurred.
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Further information such as stack traces may be useful, but is not necessary.
Bug fixes and improvements
Changes should be submitted as merge request to the GTK project. If a merge request fixes an issue, the description should mention the issue number.
Release notes
Release notes for releases of GTK 3.x are part of the migration guide in the GTK documentation. See