Error handling

Modules
	Error codes

Typedefs
typedef void(*	GLFWerrorfun )(int, const char *)
	The function signature for error callbacks. More...

Functions
GLFWerrorfun	glfwSetErrorCallback (GLFWerrorfun cbfun)
	Sets the error callback. More...

Detailed Description

Typedef Documentation

typedef void(* GLFWerrorfun)(int, const char *)

This is the function signature for error callback functions.

Parameters

[in]	error	An error code.
[in]	description	A UTF-8 encoded string describing the error.

See Also

glfwSetErrorCallback

Function Documentation

GLFWerrorfun glfwSetErrorCallback

(

GLFWerrorfun

cbfun

)

This function sets the error callback, which is called with an error code and a human-readable description each time a GLFW error occurs.

Parameters

[in]

cbfun

The new callback, or NULL to remove the currently set callback.

Returns

The previously set callback, or NULL if no callback was set or an error occurred.

Remarks

This function may be called before glfwInit.

Note

The error callback is called by the thread where the error was generated. If you are using GLFW from multiple threads, your error callback needs to be written accordingly.

Because the description string provided to the callback may have been generated specifically for that error, it is not guaranteed to be valid after the callback has returned. If you wish to use it after that, you need to make your own copy of it before returning.