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• 15:32, 19 April 2022 SMcNeill talk contribs created page SCREENEXISTS (Created page with "{{DISPLAYTITLE:_SCREENEXISTS}} The _SCREENEXISTS function returns true (-1) once a screen has been created. {{PageSyntax}} : {{Parameter|screenReady%%}} = _SCREENEXISTS {{PageDescription}} * Function returns true (-1) once a program screen is available to use or change. * Can be used to avoid program errors because a screen was not ready for input or alterations. ** Use before _TITLE, _SCREENMOVE and other functions that require the output window to h...")