POLYLINEQQ (W*32, W*64)

Graphics Function: Draws a line between each successive x, y point in a given array.

Module

USE IFQWIN

Syntax

result = POLYLINEQQ (points,cnt)

points

(Input) An array of DF_POINTobjects. The derived type DF_POINT is defined in IFQWIN.F90 as: type DF_POINT
sequence
integer(4) x
integer(4) y

end type DF_POINT

cnt

(Input) INTEGER(4). Number of elements in the points array.

Results

The result type is INTEGER(4). The result is a nonzero value if successful; otherwise, zero.

POLYLINEQQ uses the viewport-coordinate system.

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.

The current graphics position is not used or changed as it is in the LINETO function.

Compatibility

STANDARD GRAPHICS QUICKWIN GRAPHICS

Example

! Build for QuickWin or Standard Graphics

USE IFQWIN

TYPE(DF_POINT) points(12)

integer(4) result

integer(4) cnt, i

! load the points

do i = 1,12,2

points(i).x =20*i

points(i).y =10

points(i+1).x =20*i

points(i+1).y =60

end do

! A sawtooth pattern will appear in the upper left corner

result = POLYLINEQQ(points, 12)

end

See Also