Programming Guide - Actian

How You Can Run Non-interactive ApplicationsWhen you run an OpenROAD application without the window manager,information that would display as a pop-up frame to executing windows isredirected as follows:Window SystemMicrosot Windows NT,Windows 95UNIX or LinuxBehaviorDisplayed in the trace window and written to theOpenROAD error log fileDisplayed in the trace window onlyThis redirection of information includes:• Informational pop-up messages provided by OpenROAD (for example,those containing error messages)• 4GL statements that do not require user response (for example, themessage statement and the InfoPopup method)• 4GL statements that require user response (for example, the promptstatement and the ReplyPopup method)Note: Because they block the application until answered, you should notinclude statements requiring user response in frames or procedures that are tobe run non-interactively. Moreover, because users may not noticeinformational statements directed to the log file or trace window, you also maywant to avoid informational statements that require user response.Other restrictions to running applications without the window manager includethe following:• Attempting to call, open, or go to frames that contain forms causes anerror message.• Attempting to set those CurSession attributes that contain informationabout the display or the window manager (for example, WindowSystem orScreenHeight) has no effect.For more information about running OpenROAD applications, see the UserGuide.112 Programming Guide