Primary and Secondary Display Sizes for Display Files

Whether you use IBM-supplied display size condition names or specify lines and positions directly, the first display size you specify is the primary display size. The second display size, if specified, is the secondary display size. Figure 148 shows an example of primary and secondary display size specification.

Figure 148. Using DSPSIZ to Specify Primary and Secondary Display Sizes

Using DSPSIZ to Specify

When you specify more than one display size for DSPSIZ, you can specify display size condition names in positions 7 through 16 on subsequent DDS statements at the record and field levels. These display size condition names are then used to condition keywords and the locations of fields. When both a primary and secondary display are specified, the display file will be validated for both sizes. For more information, see "DDS Conditioning (Positions 7 through 16)".

Note:
If you specify user-defined display size condition names for DSPSIZ, you cannot use IBM-supplied display size condition names for conditioning.

The capability to display in the 27 x 132 mode is allowed only on a 3180-2, or a 3197 Model D1, D2, W1, or W2 device attached locally to a 6040 or 6041 controller or remotely to a 5294 or 5394 controller. The display size for the 27 x 132 mode will be ignored for DSPSIZ unless these controllers are used.

The following table shows the valid display sizes.

Display Sizes Display Device Meaning
*DS3 or 24 x 80 3179 3180 3196 3197 3476 3486 3487 (Models HA, HC, HG, and HW) 3488 5251 (Models 11 and 12) 5291 5292 24 lines x 80 positions 1920 positions total
*DS4 or 27 x 132 3180 3197 (Models D1, D2, W1, and W2) 3477 (Models FA, FC, FD, and FG) 3487 (Models HA, HC, HG, and HW) 3488 (Use 6040 or 6041 controller locally, or 5294 or 5394 controller remotely for 27 x 132 display capability.) 27 lines x 132 positions 3564 positions total

The display size designated as the primary display size should be the one with which the display file will most often be used. Additional processing is performed when the actual display size is the secondary display size.

The display size condition names let you improve the use of a single display file for any size display. For example, when you are using subfiles, you can specify 24 records per page for a 27 x 132 display and 22 records per page for a 24 x 80 display.