//SetCursorEnterCallback the cursor boundary crossing callback which is called
//when the cursor enters or leaves the client area of the window.
func (w *Window) SetCursorEnterCallback(cbfun func(w *Window, entered bool)) {
if cbfun == nil {
C.glfwSetCursorEnterCallback(w.data, nil)
} else {
w.fCursorEnterHolder = cbfun
C.glfwSetCursorEnterCallbackCB(w.data)
}
}
// SetCursorEnterCallback the cursor boundary crossing callback which is called
// when the cursor enters or leaves the client area of the window.
func (w *Window) SetCursorEnterCallback(cbfun CursorEnterCallback) (previous CursorEnterCallback) {
previous = w.fCursorEnterHolder
w.fCursorEnterHolder = cbfun
if cbfun == nil {
C.glfwSetCursorEnterCallback(w.data, nil)
} else {
C.glfwSetCursorEnterCallbackCB(w.data)
}
panicError()
return previous
}