# FR: Make JUCE\_CHECK\_OPENGL\_ERROR and clearGLError() public **URL:** \ **Category:** General JUCE discussion\ **Created:** [April 29, 2019, 6:02pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127 "2019-04-29T18:02:40Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![jrlanglois](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/jrlanglois/32/21372_2.png) [@jrlanglois](https://forum.juce.com/u/jrlanglois)\ **Post date:** [April 29, 2019, 6:02pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/1 "2019-04-29T18:02:40Z")
To keep with the conventions, make the latter a macro: `JUCE_CLEAR_GL_ERROR`. ---
**Author:** ![jrlanglois](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/jrlanglois/32/21372_2.png) [@jrlanglois](https://forum.juce.com/u/jrlanglois)\ **Post date:** [April 29, 2019, 7:14pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/2 "2019-04-29T19:14:04Z")
I just realised `OpenGLHelpers::resetErrorState()` exists… Might be worthwhile DRYing the framework to use that - it helps get a better sense of the overall implementation. ---
**Author:** ![DaveH](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daveh/32/4924_2.png) [@DaveH](https://forum.juce.com/u/DaveH)\ **Post date:** [January 19, 2023, 5:54pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/3 "2023-01-19T17:54:47Z")
As a follow on. How do I access JUCE\_CHECK\_OPENGL\_ERROR officially in my own code? I’m getting uniform issues that showed somewhere else entire different due to not enough error checking. ---
**Author:** ![reuk](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/reuk/32/21494_2.png) [@reuk](https://forum.juce.com/u/reuk)\ **Post date:** [January 19, 2023, 7:26pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/4 "2023-01-19T19:26:22Z")
If you call `setOpenGLVersionRequired (openGL4_3)` on Windows, and assuming you have a GPU with OpenGL 4.3+ drivers, JUCE will install a debugging callback that will automatically fire when an error is detected. I’d recommend this over using the error checking macro in new code. ---
**Author:** ![DaveH](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daveh/32/4924_2.png) [@DaveH](https://forum.juce.com/u/DaveH)\ **Post date:** [January 19, 2023, 7:40pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/5 "2023-01-19T19:40:01Z")
Oh ok, thanks man. What about on Mac? ---
**Author:** ![reuk](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/reuk/32/21494_2.png) [@reuk](https://forum.juce.com/u/reuk)\ **Post date:** [January 19, 2023, 7:41pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/6 "2023-01-19T19:41:09Z")
Mac only supports up to GL 4.1, so it doesn’t support the debugging callback. ---
**Author:** ![DaveH](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daveh/32/4924_2.png) [@DaveH](https://forum.juce.com/u/DaveH)\ **Post date:** [January 19, 2023, 7:53pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/7 "2023-01-19T19:53:23Z")
Cheers, so **JUCE\_CHECK\_OPENGL\_ERROR** exists on Mac OS? I haven’t tried it yet. ---
**Author:** ![reuk](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/reuk/32/21494_2.png) [@reuk](https://forum.juce.com/u/reuk)\ **Post date:** [January 19, 2023, 8:06pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/8 "2023-01-19T20:06:06Z")
It’s private on macOS. It’s pretty easy to get something equivalent working, though, by using glGetError directly. ---
**Author:** ![DaveH](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daveh/32/4924_2.png) [@DaveH](https://forum.juce.com/u/DaveH)\ **Post date:** [January 19, 2023, 8:16pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/9 "2023-01-19T20:16:29Z")
I see people quoting **JUCE\_CHECK\_OPENGL\_ERROR** in their code. I just wondered how they do that, I don’t know why it’s hidden, it’s a useful tool. I have OpenGL 4.6 installed on Windows. But these are the only options allowed, it seems… ```auto enum OpenGLVersion { defaultGLVersion = 0, openGL3_2 }; ``` Oh well, I guess I’ll just use glGetError instead. It would have been handy to have the error code strings automatically. ---
**Author:** ![jrlanglois](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/jrlanglois/32/21372_2.png) [@jrlanglois](https://forum.juce.com/u/jrlanglois)\ **Post date:** [January 19, 2023, 8:34pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/10 "2023-01-19T20:34:46Z")
You would need JUCE from last August (2022, or 7.0.2 or 7.0.3 - somewhere around there): [JUCE/juce\_OpenGLContext.h at develop · juce-framework/JUCE · GitHub](https://github.com/juce-framework/JUCE/blob/develop/modules/juce_opengl/opengl/juce_OpenGLContext.h#L136-L143) ---
**Author:** ![DaveH](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daveh/32/4924_2.png) [@DaveH](https://forum.juce.com/u/DaveH)\ **Post date:** [January 19, 2023, 8:45pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/11 "2023-01-19T20:45:20Z")
I’m using 7.02. I don’t want to upgrade, or work with a ‘develop’ version, not at this stage of my plug-in. Thanks though. Never mind. ---
**Author:** ![DaveH](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/daveh/32/4924_2.png) [@DaveH](https://forum.juce.com/u/DaveH)\ **Post date:** [January 19, 2023, 8:54pm UTC](https://forum.juce.com/t/fr-make-juce-check-opengl-error-and-clearglerror-public/33127/12 "2023-01-19T20:54:17Z")
```auto OpenGLHelpers::getErrors() ``` Would be a handy addition to resetErrorState() though,