Displaying the Grid-Line Screen Format
To store the grid-line screen format into the grid-line information buffer,
the grid-line draw control code is used. The application program on the host
system is required to specify the following information about the grid-line
information buffers:
- Which buffer is used to store the grid-line screen definition data
- Which buffer is used to display the grid-line screen definition data
To specify which buffer to be used, the character data F or B with the non-display attribute should be set at the designated position in the grid-line screen-format data and the character data.
The grid-line screen format is not displayed when its format gets stored into the buffer. It is displayed when the character data that contains the F or B with the non-display attribute is received at the specified position.