{ Permanent | Temporary }

Permanent	A control with this style applied can be destroyed only by using the DESTROY statement or when the parent window is destroyed. A permanent control is more efficient than a "temporary" one since it is not created each time a DISPLAY statement is executed. This style is set by default.
Temporary	Temporary controls are destroyed when a DESTROY statement is executed, when the parent window is destroyed, when another control is created in its same position, or when a Screen Section containing a BLANK SCREEN keyword is displayed. Temporary controls are less efficient than "permanent" ones since they are created each time a DISPLAY statement is executed.

 

Example - Display a status-bar that is temporary

working-storage section. 77 screen-1-st-2-hdl handle of status-bar. ... procedure division. ... *> Display a Window first to display the status-bar upon it ...   display status-bar           background-low           temporary           font Default-Font           background-color 7           foreground-color 3           panel-widths ( 30 50)           panel-style ( 1 2)           panel-alignment ( "U" "U")           panel-bitmap ( icon-png2 icon-png2)           panel-bitmap-width ( 18 18)           panel-bitmap-number ( 4 5)           panel-bitmap-alignment ( "U" "U")           handle screen-1-st-2-hdl           .   modify screen-1-st-2-hdl      panel-index 1      panel-text "Date: "      panel-hint "This is the current system date"      panel-color 516      panel-index 2      panel-text "Screen Status: "      panel-hint "This is the status of the program"   .