sdl_joyballevent(3) [suse man page]

SDL_JoyBallEvent(3)						 SDL API Reference					       SDL_JoyBallEvent(3)

NAME

       SDL_JoyBallEvent - Joystick trackball motion event structure

STRUCTURE DEFINITION

       typedef struct{
	 Uint8 type;
	 Uint8 which;
	 Uint8 ball;
	 Sint16 xrel, yrel;
       } SDL_JoyBallEvent;

STRUCTURE DATA

       type		   SDL_JOYBALLMOTION

       which		   Joystick device index

       ball		   Joystick trackball index

       xrel, yrel	   The relative motion in the X/Y direction

DESCRIPTION

       SDL_JoyBallEvent is a member of the SDL_Event union and is used when an event of type SDL_JOYBALLMOTION is reported.

       A  SDL_JOYBALLMOTION event occurs when a user moves a trackball on the joystick. The field which is the index of the joystick that reported
       the event and ball is the index of the trackball (for a more detailed explaination see the Joystick section). Trackballs only return  rela-
       tive  motion,  this  is the change in position on the ball since it was last polled (last cycle of the event loop) and it is stored in xrel
       and yrel.

SEE ALSO

       SDL_Event, Joystick Functions, SDL_JoystickEventState, SDL_JoystickGetBall

SDL
							      Tue 11 Sep 2001, 22:59					       SDL_JoyBallEvent(3)

SDL_MouseMotionEvent(3) 					 SDL API Reference					   SDL_MouseMotionEvent(3)

NAME

       SDL_MouseMotionEvent- Mouse motion event structure

STRUCTURE DEFINITION

       typedef struct{
	 Uint8 type;
	 Uint8 state;
	 Uint16 x, y;
	 Sint16 xrel, yrel;
       } SDL_MouseMotionEvent;

STRUCTURE DATA

       type		   SDL_MOUSEMOTION

       state		   The current button state

       x, y		   The X/Y coordinates of the mouse

       xrel, yrel	   Relative motion in the X/Y direction

DESCRIPTION

       SDL_MouseMotionEvent is a member of the SDL_Event union and is used when an event of type SDL_MOUSEMOTION is reported.

       Simply  put, a SDL_MOUSEMOTION type event occurs when a user moves the mouse within the application window or when SDL_WarpMouse is called.
       Both the absolute (x and y) and relative (xrel and yrel) coordinates are reported along with the current button states (state). The  button
       state can be interpreted using the SDL_BUTTON macro (see SDL_GetMouseState).

       If  the	cursor	is  hidden (SDL_ShowCursor(0)) and the input is grabbed (SDL_WM_GrabInput(SDL_GRAB_ON)), then the mouse will give relative
       motion events even when the cursor reaches the edge fo the screen. This is currently only implemented on Windows and Linux/Unix-a-likes.

SEE ALSO

       SDL_Event, SDL_MouseButtonEvent

SDL
							      Tue 11 Sep 2001, 22:59					   SDL_MouseMotionEvent(3)