INITIALIZE CHOICE 3

pinit_choice3

CALL SEQUENCE

void pinit_choice3 (ws_id, choice_dev, init_status, init_choice, pet, echo_volume, choice_data_rec)

INPUT PARAMETERS

Pint	ws_id,
Pint	choice_dev,
Pin_status	init_status,
Pint	init_choice,
Pint 	pet,
const Plimit3	*echo_volume,
const Pchoice_data3	*choice_data_rec

ARGUMENTS

ws_id,

Workstation identifier

choice_dev,

Choice device number

init_status,

Initial choice status

init_choice,

Initial choice

pet,

Prompt and echo type

echo_volume,

Echo volume

choice_data_rec

Data record

TYPES

typedef enum {
	PIN_STATUS_NONE, 
	PIN_STATUS_OK, 
	PIN_STATUS_NO_IN
} Pin_status;

typedef struct {
	Pfloat	x_min;	/* minimum x 	*/
	Pfloat	x_max;	/* maximum x 	*/
	Pfloat	y_min;	/* minimum y 	*/
	Pfloat	y_max;	/* maximum y 	*/
	Pfloat	z_min;	/* minimum z 	*/
	Pfloat	z_max;	/* maximum z 	*/
} Plimit3;

typedef struct {
	union Pchoice3_pets {
		struct Pchoice3_pet_r1 {
			Pint	num_prompts;	/* number of prompts	*/
			Ppr_switch	prompts[P_NBCHOICE-1];
			char	*strings[P_NBCHOICE];
		} pet_r1;
		struct Pchoice3_pet_r2 {
			Pint	num_prompts;	/* number of prompts	*/
			char	*prompts;	/* array of prompts	*/
		} pet_r2;
		struct Pchoice3_pet_r3 {
			Pint	num_strings;	/* number of choice strings	*/
			char	**strings;	/* array of choice strings	*/
		} pet_r3;
		struct Pchoice3_pet_r4 {
			Pint	num_strings;	/* number of choice strings	*/
			char	**strings;	/* array of choice strings	*/
		} pet_r4;
		struct Pchoice3_pet_r5 {
			Pint	struct_id;	/* structure identifier	*/
			Pint	struct_id;	/* number of pick identifiers	*/
			Pint	*pick_ids;	/* array of pick identifiers	*/
		} pet_r5;
	} pets;
} Pchoice_data3;

typedef enum {
	PPR_OFF, 
	PPR_ON
} Ppr_switch;

PHIGS STATE

EFFECT

The following devices are available:

• 1 : keyboard function keys. Returns the PFkey selected.
• 2 : mouse button number. Numbered from left to right.
• 40 to 49 : simulates a choice box on the screen. Selection is performed by clicking on items using the mouse

• 1 or -1: Display of a radio box widget with a title for each button.
• 2 or -2: Display of a radio box widget without button titles.
• 3 or -3: Display of a popup menu widget.
• 4 or -4: Display of a toggle box widget with a title for each button.
• 5 or -5: Display of a toggle box widget without button titles.

Echo volume is defined in Device Coordinates (DC) if echo type is positive or as a percentage of RootWindow size if echo type is negative.

Choice data record contains additional information depending on the echo type,

For echo type 1, -1, 4 and -4 the following fields of Pchoice_data structure are to be initialized:

• Pchoice_data choice_data_rec;
• choice_data_rec.pets.pet_r1.num_prompts = is to be set to 32 .
• choice_data_rec.pets.pet_r1.prompts = array of 32 integers. Each of these may be either PPR_ON, PPR_OFF (,or PPR_ACT for toggle button), depending whether it is visible or not. (or active for toggle button).
• choice_data_rec.pets.pet_r1.strings = array of 33 strings, each giving the title of the associated button. The 33rd string is the title of the radio box and begins with a @ char.

• Pchoice_data choice_data_rec;
• choice_data_rec.pets.pet_r2.num_prompts = is to be set to 32 .
• choice_data_rec.pets.pet_r2.prompts = array of 32 integers. Each of these may be either PPR_ON, PPR_OFF (,or PPR_ACT for toggle button), depending whether it is visible or not.(or active for toggle button).

• Pchoice_data choice_data_rec;
• choice_data_rec.pets.pet_r3.num_strings = number of fields in the popup menu. Maximum value for this parameter is 32.
• choice_data_rec.pets.pet_r3.strings = list of 33 strings to be assigned in the fields of the popup menu. The 33rd string is initialized with the title of the popup menu and begins with a @ char.

/* Sample program for choice initialization */

#include <phigs.h>

main()
{
	int i;
	Pint ws_id,choice_dev,init_choice,pet;
	Pin_status init_status;
	Plimit echo_area;
	Pchoice_data choice_data_rec;
	static char *strings[5] = 
			{"Choice1","Choice2","Choice3","Choice4","Choice5"};

/* Open PHIGS session */
	popen_phigs(PDEF_ERR_FILE,PDEF_MEM_SIZE);

/* Open workstation */
	ws_id = 1;
	popen_ws(ws_id,"/dev/tty",8887);

/* Initialize choice device number 41 with pet -4 */
	init_status = PIN_STATUS_NONE;
	init_choice = 0;
	echo_area.y_min = 0.5;
	echo_area.y_max = 1.0;
	echo_area.x_min = 0.0;
	echo_area.x_max = 0.1;
	choice_dev = 41;
	pet = -4;
	choice_data_rec.pets.pet_r1.num_prompts = 32; 
	for (i = 0;i < 3;i++) {
		choice_data_rec.pets.pet_r1.prompts[i] = PPR_ON; 
		choice_data_rec.pets.pet_r1.strings[i] = strings[i];
	}
	for (i = 3;i < 5;i++) {
		choice_data_rec.pets.pet_r1.prompts[i] = PPR_ACT;
		choice_data_rec.pets.pet_r1.strings[i] = strings[i];
	for (i = 5;i < 32;i++) {
		choice_data_rec.pets.pet_r1.prompts[i] = PPR_OFF;
	}
	choice_data_rec.pets.pet_r1.strings[32] = "@Echo4";
	pinit_choice(ws_id,choice_dev,init_status,init_choice,
			pet,&echo_area,&choice_data_rec);

/* Close workstation */
	pclose_ws(ws_id);

/* Close PHIGS */
	pclose_phigs();
}

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

254

Ignoring function, invalid echo area volume: XMIN>>=XMAX, YMIN>>=YMAX or ZMIN>>ZMAX

255

Ignoring function, one of the echo area volume boundary points is outside the range of the device

253

Ignoring function, the specified prompt echo type is not available on the specified workstation

260

Ignoring function, one of the fields within the input device data record is in error

261

Ignoring function, initial value is invalid

SEE ALSO