fgl_drawline()
Draws a line in the current window (TUI and traditional mode).
Syntax
fgl_drawline(
   posY INTEGER,
   posX INTEGER,
   width INTEGER,
   type CHAR(1),
   color INTEGER)
- posY is the vertical coordinate (line) of the start of the line.
 - posX is the horizontal coordinate (column) of the start of the line.
 - width is the width of the line.
 - type (ignored).
 - color is the color number (ignored).
 
Usage
The fgl_drawline() function draws a line based on the character
 terminal coordinates in the current open window.
Dimensions and coordinates are specified in grid cell units (characters).
This function is provided for backward compatibility. A call to this function will be ignored if the current window is not SCREEN based. The function is supported to draw lines in text mode applications.