26 virtual void onChar(
unsigned int key,
int x,
int y) = 0;
35 virtual void onKeyDown (
unsigned char key,
int keyCode,
int x,
int y) = 0;
44 virtual void onKeyUp(
unsigned char key,
int keyCode,
int x,
int y) = 0;
76 virtual void onMouseWheel(
int button,
int direction,
int x,
int y) = 0;