Developer Guide and Reference

ID 767251
Date 10/31/2024
Public
Document Table of Contents

LINETOAR

Graphics Function: Draws a line between each x,y point in the from-array to each corresponding x,y point in the to-array. This routine is only available for Windows.

Module

USE IFQWIN

result = LINETOAR (loc(fx), loc(fy), loc(tx) loc(ty), cnt)

fx

(Input) INTEGER(2). From x viewport coordinate array.

fy

(Input) INTEGER(2). From y viewport coordinate array.

tx

(Input) INTEGER(2). To x viewport coordinate array.

ty

(Input) INTEGER(2). To y viewport coordinate array.

cnt

(Input) INTEGER(4). Length of each coordinate array; all should be the same size.

Results

The result type is INTEGER(2). The result is a nonzero value if successful; otherwise, zero.

The lines are drawn using the current graphics color, logical write mode, and line style. The graphics color is set with SETCOLORRGB, the write mode with SETWRITEMODE, and the line style with SETLINESTYLE.

Example

! Build for QuickWin or Standard Graphics USE IFQWIN integer(2) fx(3),fy(3),tx(3),ty(3),result integer(4) cnt, i ! load the points do i = 1,3 !from here fx(i) =20*i fy(i) =10 !to there tx(i) =20*i ty(i) =60 end do ! draw the lines all at once ! 3 white vertical lines in upper left corner result = LINETOAR(loc(fx),loc(fy),loc(tx),loc(ty), 3) end