Key callback being called incorrectly

[Brumus14]

Hello I’m using GLFW for input in my project and I’m using the glfwSetKeyCallback function and it is working fine detecting when a key is pressed and released, however when using some keys are held down after about 1 second the release callback is called, another weird thing about this behavior is that if 4 keys are held at once then only one will be incorrectly release called and the others will still work. If anyone could help me on why this is happening.

[dougbinks]

Hi @Brumus14,

Welcome to the GLFW forum.

@Brumus14

however when using some keys are held down after about 1 second the release callback is called

Are you certain it is called with GLFW_RELEASE and not GLFW_REPEAT?

@Brumus14

, another weird thing about this behavior is that if 4 keys are held at once then only one will be incorrectly release called and the others will still work

This could be due to the keyboard not being able to handle multiple key presses, see this Wikipedia article on multi-key rollover.

If the above aren’t the issue it would be a good idea to test with the events.c test program to check if that has the same issue as your own code.

[Brumus14]

That was the issue, I wasn’t checking for the repeat calls.
Thanks.