25 virtual void onChar(
int key,
int x,
int y) = 0;
36 virtual void onKeyDown(
int key,
int keyCode,
int x,
int y,
bool repeat,
int modifiers) = 0;
45 virtual void onKeyUp(
int key,
int keyCode,
int x,
int y) = 0;
77 virtual void onMouseWheel(
int button,
int direction,
int x,
int y) = 0;