HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 406)

406
DIN programming
4.33 Subr
outines
Help graphics for subprogram calls
With help graphics you illustrate the calling parameters of
subprograms. The Control places the help graphics to the left next to
the dialog box of the subprogram call.
If you append an underscore "_" and the input field name in capital
letters (beginning with L) to the name of the file name, a separate
graphic will be displayed for that input field. If no separate help graphic
exists for an input field, the graphic for the subprogram will be
displayed (if available). In the standard setting, the help window is
displayed only if there is a graphic for the subprogram. Even if you
want to use individual graphics for the address letters, you should
define a graphic for the subprogram.
Graphic format:
 BMP, PNG, JPG images
 Size 440x320 pixels
You integrate help graphics for subprogram calls as follows:

The subprogram name, entry field name and the appropriate
extension (BMP, PNG, JPG) must be used as file name for the help
graphic.
 Transfer the help graphic to the directory: \nc_prog\Pictures