W$CENTER_WINDOW

The W$CENTER_WINDOW library routine moves the window on the screen in order to have the center of the window matching with the center of the screen.

Syntax:

CALL "W$CENTER_WINDOW" USING windowHandle

Parameters:

windowHandle

HANDLE OF WINDOW

Specifies the window to be centered.

Examples:

Example - Display a independent window and center it on the screen

working-storage section. 77  hWin                  handle of window.   procedure division. main.   display independent graphical window           color  65793           with   system menu           title  "Centered window"           handle hWin           event  WIN-EVT   call "w$center_window" using hWin.