eglGetError — return error information
                EGLint eglGetError(
               | 
              void); | 
              
            eglGetError returns the error of the last
            called EGL function in the current thread.
            Initially, the error is set to EGL_SUCCESS.
        
When an EGL function could potentially generate several different errors (for example, when passed both a bad attribute name, and a bad attribute value for a legal attribute name), the implementation may choose to generate any one of the applicable errors.
The following errors are currently defined:
EGL_SUCCESS
              
            The last function succeeded without error.
EGL_NOT_INITIALIZED
              
            EGL is not initialized, or could not be initialized, for the specified EGL display connection.
EGL_BAD_ACCESS
              
            EGL cannot access a requested resource (for example a context is bound in another thread).
EGL_BAD_ALLOC
              
            EGL failed to allocate resources for the requested operation.
EGL_BAD_ATTRIBUTE
              
            An unrecognized attribute or attribute value was passed in the attribute list.
EGL_BAD_CONTEXT
              
            An EGLContext argument does not name a valid EGL rendering context.
EGL_BAD_CONFIG
              
            An EGLConfig argument does not name a valid EGL frame buffer configuration.
EGL_BAD_CURRENT_SURFACE
              
            The current surface of the calling thread is a window, pixel buffer or pixmap that is no longer valid.
EGL_BAD_DISPLAY
              
            An EGLDisplay argument does not name a valid EGL display connection.
EGL_BAD_SURFACE
              
            An EGLSurface argument does not name a valid surface (window, pixel buffer or pixmap) configured for GL rendering.
EGL_BAD_MATCH
              
            Arguments are inconsistent (for example, a valid context requires buffers not supplied by a valid surface).
EGL_BAD_PARAMETER
              
            One or more argument values are invalid.
EGL_BAD_NATIVE_PIXMAP
              
            A NativePixmapType argument does not refer to a valid native pixmap.
EGL_BAD_NATIVE_WINDOW
              
            A NativeWindowType argument does not refer to a valid native window.
EGL_CONTEXT_LOST
              
            A power management event has occurred. The application must destroy all contexts and reinitialise OpenGL ES state and objects to continue rendering.
            A call to eglGetError sets the error to
            EGL_SUCCESS.
        
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