显示屏幕位置点

Synopsis

POS/'message',x-coord,y-coord,z-coord,response

Description

This statement allows three coordinate values to be obtained by using the screen position indicator which automatically appears upon execution of this statement.

CAUTION: We do not recommend using the asterisk character (*) in menu prompts or menu options.

POS works with the Back and Cancel options. If Back is chosen during program execution while the POS statement is pending, the value of 1 to be assigned to the response variable. Cancel causes 2 to be assigned. The values 3 and 4 are not used, and may not be used. Once the position is defined, the value of 5 is assigned to the response variable and program execution continues.

Below is a list of response values assigned to the response variable:

Response

Assignment

Back

1

Cancel

2

Not Used

3

Not Used

4

Position Defined

5

Parameters

Parameter

Description

'message'

A string which represents the title of the menu you want to display. The string can contain up to 40 characters.

x-coord,y-coord,z-coord

Three variables which are assigned the coordinate values obtained from the screen position indicated by the user during program execution.

response

A variable which is assigned a numerical value based on the user response.

Response	Assignment
Back	1
Cancel	2
Not Used	3
Not Used	4
Position Defined	5

Parameter	Description
'message'	A string which represents the title of the menu you want to display. The string can contain up to 40 characters.
x-coord,y-coord,z-coord	Three variables which are assigned the coordinate values obtained from the screen position indicated by the user during program execution.
response	A variable which is assigned a numerical value based on the user response.