//SetCharacterCallback sets the character callback which is called when a
//Unicode character is input.
//
//The character callback is intended for text input. If you want to know whether
//a specific key was pressed or released, use the key callback instead.
func (w *Window) SetCharacterCallback(cbfun func(w *Window, char uint)) {
if cbfun == nil {
C.glfwSetCharCallback(w.data, nil)
} else {
w.fCharHolder = cbfun
C.glfwSetCharCallbackCB(w.data)
}
}
// SetCharCallback sets the character callback which is called when a
// Unicode character is input.
//
// The character callback is intended for Unicode text input. As it deals with
// characters, it is keyboard layout dependent, whereas the
// key callback is not. Characters do not map 1:1
// to physical keys, as a key may produce zero, one or more characters. If you
// want to know whether a specific physical key was pressed or released, see
// the key callback instead.
//
// The character callback behaves as system text input normally does and will
// not be called if modifier keys are held down that would prevent normal text
// input on that platform, for example a Super (Command) key on OS X or Alt key
// on Windows. There is a character with modifiers callback that receives these events.
func (w *Window) SetCharCallback(cbfun CharCallback) (previous CharCallback) {
previous = w.fCharHolder
w.fCharHolder = cbfun
if cbfun == nil {
C.glfwSetCharCallback(w.data, nil)
} else {
C.glfwSetCharCallbackCB(w.data)
}
panicError()
return previous
}