LINETOAR (W*32, W*64)

Graphics Function: Draws a line between each x,y point in the from-array to each corresponding x,y point in the to-array.

Module: USE IFQWIN

Syntax

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.

Compatibility

STANDARD GRAPHICS QUICKWIN GRAPHICS

See Also

LINETO, LINETOAREX, LOC, SETCOLORRGB, SETLINESTYLE, SETWRITEMODE, Building Applications: Drawing Lines on the Screen

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