graphics2d
[Interface specifications]


Detailed Description

Two-dimensional graphics interfaceThe graphics2d interface provides an interface to graphics devices. Drivers can implement this interface to provide clients and other drivers with graphics output. For example, Stage models present this interface to allow clients to draw in the Stage window.

#define PLAYER_GRAPHICS2D_MAX_POINTS   64
#define PLAYER_GRAPHICS2D_CMD_CLEAR   1
 Command subtype: clear the drawing area (send an empty message).
#define PLAYER_GRAPHICS2D_CMD_POINTS   2
 Command subtype: draw points.
#define PLAYER_GRAPHICS2D_CMD_POLYLINE   3
 Command subtype: draw a polyline.
#define PLAYER_GRAPHICS2D_CMD_POLYGON   4
 Command subtype: draw a polygon.
typedef struct
player_graphics2d_cmd_points 
player_graphics2d_cmd_points_t
typedef struct
player_graphics2d_cmd_polyline 
player_graphics2d_cmd_polyline_t
typedef struct
player_graphics2d_cmd_polygon 
player_graphics2d_cmd_polygon_t

Define Documentation

#define PLAYER_GRAPHICS2D_MAX_POINTS   64

The maximum number of points that can be described in a packet.


Typedef Documentation

Data: This interface produces no data. Requests: This interface accepts no requests. Command: Draw points (PLAYER_GRAPHICS2D_CMD_POINTS) Draw some points.

Command: Draw polygon (PLAYER_GRAPHICS2D_CMD_POLYGON) Draw a polygon.

Command: Draw polyline (PLAYER_GRAPHICS2D_CMD_POLYLINE) Draw a series of straight line segments between a set of points.


Last updated 12 September 2005 21:38:45