Is there any way at all that I can tell how hard the screen is being pressed
You cannot get the pressure from the SDK nor undocumented methods. However you can detect the size of touch with undocumented methods. In the GSEvent, which is a lower-level representation of UIEvent, there is a structure known as GSPathInfo with members: typedef struct GSPathInfo { unsigned char pathIndex; // 0x0 = 0x5C unsigned char pathIdentity; … Read more