{ 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 window with temporary style

working-storage section. 77 window-handle1 usage handle of window. ... procedure division. ...   display floating  window background-low           size 37.3           lines 34.2           line 20           column 1           cell width 10           cell height 10           label-offset 20           control font Default-Font           color 257           modeless           system menu           title-bar           temporary           erase           title "Screen"           handle window-handle1           .