REQUEST STROKE 3

preq_stroke3

CALL SEQUENCE

void preq_stroke3 (ws_id, stroke_dev, status, view_index, stroke)

INPUT PARAMETERS

Pint	ws_id,
Pint	stroke_dev,

OUTPUT PARAMETERS

Pin_status 	*status,
Pint	*view_index,
Ppoint_list3	*stroke

ARGUMENTS

ws_id,

Workstation identifier

stroke_dev,

Stroke device number

status,

Input status

view_index,

View index

stroke

Stroke positions

TYPES

typedef enum {
	PIN_STATUS_NONE, 
	PIN_STATUS_OK, 
	PIN_STATUS_NO_IN
} Pin_status;

typedef struct {
	Pint	num_points;	/* number of Ppoint3s in the list	*/
	Ppoint3	*points;	/* list of points	*/
} Ppoint_list3;

typedef struct {
	Pfloat 	x;	/* x coordinate	*/
	Pfloat 	y;	/* y coordinate	*/
	Pfloat 	z;	/* z coordinate	*/
} Ppoint3;

PHIGS STATE

EFFECT

Example:

/* Request stroke on workstation number 1 using device number 1 */
	Pint ws_id,stroke_dev;view_index;
	Pin_status status;
	Ppoint  points[10];
	Ppoint_list stroke_pos;
	.....
	ws_id = 1;
	stroke_dev = 1;
	stroke_pos.points = points;
	preq_stroke(ws_id,stroke_dev,&status,&view_index,&stroke_pos);
	......

ERRORS

3

Ignoring function, function requires state (PHOP, WSOP,*,*)

54

Ignoring function, the specified workstation is not open

61

Ignoring function, specified workstation is neither of category INPUT nor of category OUTIN

250

Ignoring function, the specified device is not available on the specified workstation

251

Ignoring function, the function requires the input device to be in REQUEST mode

SEE ALSO