POP_DOWN_LTAB
This command enables you to make the specified logical table pop down at the next available opportunity. When a logical table pops down, all display tables connected to it are removed from the screen.
Pop down requests are first held in a buffer until the system is ready to accept interactive input from the user or UPDATE_SCREEN is called. Only then does it start processing the pop down requests.
The format of the command is as follows:
POP_DOWN_LTAB 'Logical table name'
An example of the command is given below:
POP_DOWN_LTAB 'logtable1'
POP_DOWN_LTAB requires a parameter, which is the name of the logical table to pop down. In this example, the logical table is logtable1
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• When the POP_DOWN_LTAB command pops down a logical table, all display tables connected to this logical table are removed from the screen. If you want to remove only one of the display tables, you can use the SHOW_TABLE command with option OFF to do it.
• When the POP_DOWN_LTAB command removes a display table from the screen, it restores the saved bit-map image of the screen area under the removed display table, so that it looks the same as before. However, a special situation may arise, when you have overlapping display tables. For example, the saved bit-map image of a screen area contains an entire or a part of a display table which has already been removed from the screen since it was saved in the bit-map image. When the bit-map image is restored, this display table appears again on the screen. However, it does not exist as far as the system is concerned, so you may see on the screen a partial or an entire table which you cannot remove with the TABLES OFF command. If this situation occurs, you can use the NEW_SCREEN command to remove it from the screen. The NEW_SCREEN command regenerates the actual contents of the entire screen.
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